401k Plan data: DIAMOND OFFSHORE 401(K) PLAN plan

DIAMOND OFFSHORE 401(K) PLAN 401k Plan overview

Plan Name	DIAMOND OFFSHORE 401(K) PLAN
Plan identification number	001

DIAMOND OFFSHORE 401(K) PLAN Benefits

401k Plan Type

Defined Contribution Pension

Plan Features/Benefits

Profit-sharing
ERISA section 404(c) Plan - This plan, or any part of it is intended to meet the conditions of 29 CFR 2550.404c-1.
Total participant-directed account plan - Participants have the opportunity to direct the investment of all the assets allocated to their individual accounts, regardless of whether 29 CFR 2550.404c-1 is intended to be met.
Code section 401(k) feature - A cash or deferred arrangement described in Code section 401(k) that is part of a qualified defined contribution plan that provides for an election by employees to defer part of their compensation or receive these amounts in cash.
Code section 401(m) arrangement - Employee contributions are allocated to separate accounts under the plan or employer contributions are based, in whole or in part, on employee deferrals or contribtions to the plan. Not applicable if plan is 401(k) plan with only QNECs and/or QMACs. Also not applicable if Code section 403(b)(1), 403(b)(7) or 408 arrangements/accounts/annuities.
Total or partial participant-directed account plan - plan uses default investment account for participants who fail to direct assets in their account.

401k Sponsoring company profile

DIAMOND OFFSHORE MANAGEMENT COMPANY has sponsored the creation of one or more 401k plans.

Company Name: DIAMOND OFFSHORE MANAGEMENT COMPANY

Employer identification number (EIN): 133560049

NAIC Classification: 211120
NAIC Description: Crude Petroleum Extraction

Additional information about DIAMOND OFFSHORE MANAGEMENT COMPANY

Jurisdiction of Incorporation: State of Delaware Division of Corporations

Incorporation Date:

Company Identification Number: 2220561

More information about DIAMOND OFFSHORE MANAGEMENT COMPANY

Form 5500 Filing Information

Submission information for form 5500 for 401k plan DIAMOND OFFSHORE 401(K) PLAN

Plan id# Filing Submission Date Name of Administrator Date Administrator Signed Name of Company Sponsor Date Sponsor Signed
001 2022-01-01
001 2021-01-01
001 2020-01-01
001 2020-01-01
001 2019-01-01
001 2019-01-01
001 2018-01-01
001 2017-01-01 AARON SOBEL
001 2016-01-01 AARON SOBEL
001 2015-01-01 AARON SOBEL
001 2014-01-01 AARON SOBEL
001 2013-01-01 ROBERT CHARLES
001 2012-01-01 ROBERT L. CHARLES
001 2011-01-01 ROBERT L. CHARLES
001 2009-01-01 ROBERT L. CHARLES

Plan Statistics for DIAMOND OFFSHORE 401(K) PLAN

401k plan membership statisitcs for DIAMOND OFFSHORE 401(K) PLAN

Measure Date Value
2022: DIAMOND OFFSHORE 401(K) PLAN 2022 401k membership
Total participants, beginning-of-year 2022-01-01 1,457
Total number of active participants reported on line 7a of the Form 5500 2022-01-01 1,183
Number of retired or separated participants receiving benefits 2022-01-01 10
Number of other retired or separated participants entitled to future benefits 2022-01-01 413
Total of all active and inactive participants 2022-01-01 1,606
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2022-01-01 9
Total participants 2022-01-01 1,615
Number of participants with account balances 2022-01-01 1,561
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2022-01-01 0
2021: DIAMOND OFFSHORE 401(K) PLAN 2021 401k membership
Total participants, beginning-of-year 2021-01-01 1,378
Total number of active participants reported on line 7a of the Form 5500 2021-01-01 1,043
Number of retired or separated participants receiving benefits 2021-01-01 7
Number of other retired or separated participants entitled to future benefits 2021-01-01 397
Total of all active and inactive participants 2021-01-01 1,447
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2021-01-01 10
Total participants 2021-01-01 1,457
Number of participants with account balances 2021-01-01 1,358
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2021-01-01 0
2020: DIAMOND OFFSHORE 401(K) PLAN 2020 401k membership
Total participants, beginning-of-year 2020-01-01 1,622
Total number of active participants reported on line 7a of the Form 5500 2020-01-01 986
Number of retired or separated participants receiving benefits 2020-01-01 3
Number of other retired or separated participants entitled to future benefits 2020-01-01 382
Total of all active and inactive participants 2020-01-01 1,371
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2020-01-01 7
Total participants 2020-01-01 1,378
Number of participants with account balances 2020-01-01 1,328
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2020-01-01 0
2019: DIAMOND OFFSHORE 401(K) PLAN 2019 401k membership
Total participants, beginning-of-year 2019-01-01 1,589
Total number of active participants reported on line 7a of the Form 5500 2019-01-01 1,301
Number of retired or separated participants receiving benefits 2019-01-01 7
Number of other retired or separated participants entitled to future benefits 2019-01-01 307
Total of all active and inactive participants 2019-01-01 1,615
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2019-01-01 7
Total participants 2019-01-01 1,622
Number of participants with account balances 2019-01-01 1,580
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2019-01-01 1
2018: DIAMOND OFFSHORE 401(K) PLAN 2018 401k membership
Total participants, beginning-of-year 2018-01-01 1,731
Total number of active participants reported on line 7a of the Form 5500 2018-01-01 1,267
Number of retired or separated participants receiving benefits 2018-01-01 8
Number of other retired or separated participants entitled to future benefits 2018-01-01 310
Total of all active and inactive participants 2018-01-01 1,585
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2018-01-01 4
Total participants 2018-01-01 1,589
Number of participants with account balances 2018-01-01 1,540
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2018-01-01 0
2017: DIAMOND OFFSHORE 401(K) PLAN 2017 401k membership
Total participants, beginning-of-year 2017-01-01 2,321
Total number of active participants reported on line 7a of the Form 5500 2017-01-01 1,401
Number of retired or separated participants receiving benefits 2017-01-01 8
Number of other retired or separated participants entitled to future benefits 2017-01-01 317
Total of all active and inactive participants 2017-01-01 1,726
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2017-01-01 5
Total participants 2017-01-01 1,731
Number of participants with account balances 2017-01-01 1,685
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2017-01-01 8
2016: DIAMOND OFFSHORE 401(K) PLAN 2016 401k membership
Total participants, beginning-of-year 2016-01-01 2,837
Total number of active participants reported on line 7a of the Form 5500 2016-01-01 2,010
Number of retired or separated participants receiving benefits 2016-01-01 8
Number of other retired or separated participants entitled to future benefits 2016-01-01 298
Total of all active and inactive participants 2016-01-01 2,316
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2016-01-01 5
Total participants 2016-01-01 2,321
Number of participants with account balances 2016-01-01 1,866
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2016-01-01 28
2015: DIAMOND OFFSHORE 401(K) PLAN 2015 401k membership
Total participants, beginning-of-year 2015-01-01 3,065
Total number of active participants reported on line 7a of the Form 5500 2015-01-01 2,495
Number of retired or separated participants receiving benefits 2015-01-01 5
Number of other retired or separated participants entitled to future benefits 2015-01-01 334
Total of all active and inactive participants 2015-01-01 2,834
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2015-01-01 3
Total participants 2015-01-01 2,837
Number of participants with account balances 2015-01-01 2,203
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2015-01-01 42
2014: DIAMOND OFFSHORE 401(K) PLAN 2014 401k membership
Total participants, beginning-of-year 2014-01-01 2,929
Total number of active participants reported on line 7a of the Form 5500 2014-01-01 2,652
Number of retired or separated participants receiving benefits 2014-01-01 6
Number of other retired or separated participants entitled to future benefits 2014-01-01 403
Total of all active and inactive participants 2014-01-01 3,061
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2014-01-01 4
Total participants 2014-01-01 3,065
Number of participants with account balances 2014-01-01 2,817
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2014-01-01 85
2013: DIAMOND OFFSHORE 401(K) PLAN 2013 401k membership
Total participants, beginning-of-year 2013-01-01 2,473
Total number of active participants reported on line 7a of the Form 5500 2013-01-01 2,584
Number of retired or separated participants receiving benefits 2013-01-01 5
Number of other retired or separated participants entitled to future benefits 2013-01-01 337
Total of all active and inactive participants 2013-01-01 2,926
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2013-01-01 3
Total participants 2013-01-01 2,929
Number of participants with account balances 2013-01-01 2,716
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2013-01-01 47
2012: DIAMOND OFFSHORE 401(K) PLAN 2012 401k membership
Total participants, beginning-of-year 2012-01-01 2,448
Total number of active participants reported on line 7a of the Form 5500 2012-01-01 2,120
Number of retired or separated participants receiving benefits 2012-01-01 8
Number of other retired or separated participants entitled to future benefits 2012-01-01 341
Total of all active and inactive participants 2012-01-01 2,469
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2012-01-01 4
Total participants 2012-01-01 2,473
Number of participants with account balances 2012-01-01 2,432
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2012-01-01 25
2011: DIAMOND OFFSHORE 401(K) PLAN 2011 401k membership
Total participants, beginning-of-year 2011-01-01 2,566
Total number of active participants reported on line 7a of the Form 5500 2011-01-01 2,054
Number of retired or separated participants receiving benefits 2011-01-01 7
Number of other retired or separated participants entitled to future benefits 2011-01-01 372
Total of all active and inactive participants 2011-01-01 2,433
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2011-01-01 15
Total participants 2011-01-01 2,448
Number of participants with account balances 2011-01-01 2,414
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2011-01-01 36
2009: DIAMOND OFFSHORE 401(K) PLAN 2009 401k membership
Total participants, beginning-of-year 2009-01-01 3,077
Total number of active participants reported on line 7a of the Form 5500 2009-01-01 2,643
Number of retired or separated participants receiving benefits 2009-01-01 8
Number of other retired or separated participants entitled to future benefits 2009-01-01 282
Total of all active and inactive participants 2009-01-01 2,933
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2009-01-01 15
Total participants 2009-01-01 2,948
Number of participants with account balances 2009-01-01 2,927
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2009-01-01 146

Measure	Date	Value
2022: DIAMOND OFFSHORE 401(K) PLAN 2022 401k membership
Total participants, beginning-of-year	2022-01-01	1,457
Total number of active participants reported on line 7a of the Form 5500	2022-01-01	1,183
Number of retired or separated participants receiving benefits	2022-01-01	10
Number of other retired or separated participants entitled to future benefits	2022-01-01	413
Total of all active and inactive participants	2022-01-01	1,606
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2022-01-01	9
Total participants	2022-01-01	1,615
Number of participants with account balances	2022-01-01	1,561
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2022-01-01	0
2021: DIAMOND OFFSHORE 401(K) PLAN 2021 401k membership
Total participants, beginning-of-year	2021-01-01	1,378
Total number of active participants reported on line 7a of the Form 5500	2021-01-01	1,043
Number of retired or separated participants receiving benefits	2021-01-01	7
Number of other retired or separated participants entitled to future benefits	2021-01-01	397
Total of all active and inactive participants	2021-01-01	1,447
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2021-01-01	10
Total participants	2021-01-01	1,457
Number of participants with account balances	2021-01-01	1,358
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2021-01-01	0
2020: DIAMOND OFFSHORE 401(K) PLAN 2020 401k membership
Total participants, beginning-of-year	2020-01-01	1,622
Total number of active participants reported on line 7a of the Form 5500	2020-01-01	986
Number of retired or separated participants receiving benefits	2020-01-01	3
Number of other retired or separated participants entitled to future benefits	2020-01-01	382
Total of all active and inactive participants	2020-01-01	1,371
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2020-01-01	7
Total participants	2020-01-01	1,378
Number of participants with account balances	2020-01-01	1,328
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2020-01-01	0
2019: DIAMOND OFFSHORE 401(K) PLAN 2019 401k membership
Total participants, beginning-of-year	2019-01-01	1,589
Total number of active participants reported on line 7a of the Form 5500	2019-01-01	1,301
Number of retired or separated participants receiving benefits	2019-01-01	7
Number of other retired or separated participants entitled to future benefits	2019-01-01	307
Total of all active and inactive participants	2019-01-01	1,615
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2019-01-01	7
Total participants	2019-01-01	1,622
Number of participants with account balances	2019-01-01	1,580
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2019-01-01	1
2018: DIAMOND OFFSHORE 401(K) PLAN 2018 401k membership
Total participants, beginning-of-year	2018-01-01	1,731
Total number of active participants reported on line 7a of the Form 5500	2018-01-01	1,267
Number of retired or separated participants receiving benefits	2018-01-01	8
Number of other retired or separated participants entitled to future benefits	2018-01-01	310
Total of all active and inactive participants	2018-01-01	1,585
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2018-01-01	4
Total participants	2018-01-01	1,589
Number of participants with account balances	2018-01-01	1,540
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2018-01-01	0
2017: DIAMOND OFFSHORE 401(K) PLAN 2017 401k membership
Total participants, beginning-of-year	2017-01-01	2,321
Total number of active participants reported on line 7a of the Form 5500	2017-01-01	1,401
Number of retired or separated participants receiving benefits	2017-01-01	8
Number of other retired or separated participants entitled to future benefits	2017-01-01	317
Total of all active and inactive participants	2017-01-01	1,726
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2017-01-01	5
Total participants	2017-01-01	1,731
Number of participants with account balances	2017-01-01	1,685
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2017-01-01	8
2016: DIAMOND OFFSHORE 401(K) PLAN 2016 401k membership
Total participants, beginning-of-year	2016-01-01	2,837
Total number of active participants reported on line 7a of the Form 5500	2016-01-01	2,010
Number of retired or separated participants receiving benefits	2016-01-01	8
Number of other retired or separated participants entitled to future benefits	2016-01-01	298
Total of all active and inactive participants	2016-01-01	2,316
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2016-01-01	5
Total participants	2016-01-01	2,321
Number of participants with account balances	2016-01-01	1,866
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2016-01-01	28
2015: DIAMOND OFFSHORE 401(K) PLAN 2015 401k membership
Total participants, beginning-of-year	2015-01-01	3,065
Total number of active participants reported on line 7a of the Form 5500	2015-01-01	2,495
Number of retired or separated participants receiving benefits	2015-01-01	5
Number of other retired or separated participants entitled to future benefits	2015-01-01	334
Total of all active and inactive participants	2015-01-01	2,834
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2015-01-01	3
Total participants	2015-01-01	2,837
Number of participants with account balances	2015-01-01	2,203
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2015-01-01	42
2014: DIAMOND OFFSHORE 401(K) PLAN 2014 401k membership
Total participants, beginning-of-year	2014-01-01	2,929
Total number of active participants reported on line 7a of the Form 5500	2014-01-01	2,652
Number of retired or separated participants receiving benefits	2014-01-01	6
Number of other retired or separated participants entitled to future benefits	2014-01-01	403
Total of all active and inactive participants	2014-01-01	3,061
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2014-01-01	4
Total participants	2014-01-01	3,065
Number of participants with account balances	2014-01-01	2,817
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2014-01-01	85
2013: DIAMOND OFFSHORE 401(K) PLAN 2013 401k membership
Total participants, beginning-of-year	2013-01-01	2,473
Total number of active participants reported on line 7a of the Form 5500	2013-01-01	2,584
Number of retired or separated participants receiving benefits	2013-01-01	5
Number of other retired or separated participants entitled to future benefits	2013-01-01	337
Total of all active and inactive participants	2013-01-01	2,926
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2013-01-01	3
Total participants	2013-01-01	2,929
Number of participants with account balances	2013-01-01	2,716
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2013-01-01	47
2012: DIAMOND OFFSHORE 401(K) PLAN 2012 401k membership
Total participants, beginning-of-year	2012-01-01	2,448
Total number of active participants reported on line 7a of the Form 5500	2012-01-01	2,120
Number of retired or separated participants receiving benefits	2012-01-01	8
Number of other retired or separated participants entitled to future benefits	2012-01-01	341
Total of all active and inactive participants	2012-01-01	2,469
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2012-01-01	4
Total participants	2012-01-01	2,473
Number of participants with account balances	2012-01-01	2,432
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2012-01-01	25
2011: DIAMOND OFFSHORE 401(K) PLAN 2011 401k membership
Total participants, beginning-of-year	2011-01-01	2,566
Total number of active participants reported on line 7a of the Form 5500	2011-01-01	2,054
Number of retired or separated participants receiving benefits	2011-01-01	7
Number of other retired or separated participants entitled to future benefits	2011-01-01	372
Total of all active and inactive participants	2011-01-01	2,433
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2011-01-01	15
Total participants	2011-01-01	2,448
Number of participants with account balances	2011-01-01	2,414
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2011-01-01	36
2009: DIAMOND OFFSHORE 401(K) PLAN 2009 401k membership
Total participants, beginning-of-year	2009-01-01	3,077
Total number of active participants reported on line 7a of the Form 5500	2009-01-01	2,643
Number of retired or separated participants receiving benefits	2009-01-01	8
Number of other retired or separated participants entitled to future benefits	2009-01-01	282
Total of all active and inactive participants	2009-01-01	2,933
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2009-01-01	15
Total participants	2009-01-01	2,948
Number of participants with account balances	2009-01-01	2,927
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2009-01-01	146

Financial Data on DIAMOND OFFSHORE 401(K) PLAN

Measure	Date	Value
2022 : DIAMOND OFFSHORE 401(K) PLAN 2022 401k financial data
Unrealized appreciation/depreciation of real estate assets	2022-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2022-12-31	$-1,346
Total unrealized appreciation/depreciation of assets	2022-12-31	$-1,346
Total transfer of assets to this plan	2022-12-31	$0
Total transfer of assets from this plan	2022-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2022-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2022-12-31	$0
Expenses. Interest paid	2022-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2022-12-31	$0
Total income from all sources (including contributions)	2022-12-31	$-52,534,096
Total loss/gain on sale of assets	2022-12-31	$0
Total of all expenses incurred	2022-12-31	$48,802,107
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2022-12-31	$48,305,699
Expenses. Certain deemed distributions of participant loans	2022-12-31	$92,848
Value of total corrective distributions	2022-12-31	$0
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2022-12-31	$17,367,413
Value of total assets at end of year	2022-12-31	$319,390,915
Value of total assets at beginning of year	2022-12-31	$420,727,118
Total of administrative expenses incurred including professional, contract, advisory and management fees	2022-12-31	$403,560
Total income from rents	2022-12-31	$0
Total interest from all sources	2022-12-31	$318,292
Total dividends received (eg from common stock, registered investment company shares)	2022-12-31	$3,939,161
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2022-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2022-12-31	$3,939,161
Assets. Real estate other than employer real property at end of year	2022-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2022-12-31	$0
Administrative expenses professional fees incurred	2022-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2022-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2022-12-31	$0
Was this plan covered by a fidelity bond	2022-12-31	Yes
Value of fidelity bond cover	2022-12-31	$5,000,000
If this is an individual account plan, was there a blackout period	2022-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2022-12-31	No
Contributions received from participants	2022-12-31	$11,084,453
Participant contributions at end of year	2022-12-31	$4,563,123
Participant contributions at beginning of year	2022-12-31	$4,199,492
Participant contributions at end of year	2022-12-31	$262,707
Participant contributions at beginning of year	2022-12-31	$212,677
Assets. Other investments not covered elsewhere at end of year	2022-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2022-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2022-12-31	$3,049,074
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2022-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2022-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2022-12-31	$0
Assets. Loans (other than to participants) at end of year	2022-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2022-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2022-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2022-12-31	$0
Other income not declared elsewhere	2022-12-31	$0
Administrative expenses (other) incurred	2022-12-31	$111,073
Liabilities. Value of operating payables at end of year	2022-12-31	$0
Liabilities. Value of operating payables at beginning of year	2022-12-31	$0
Total non interest bearing cash at end of year	2022-12-31	$0
Total non interest bearing cash at beginning of year	2022-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2022-12-31	No
Income. Non cash contributions	2022-12-31	$0
Value of net income/loss	2022-12-31	$-101,336,203
Value of net assets at end of year (total assets less liabilities)	2022-12-31	$319,390,915
Value of net assets at beginning of year (total assets less liabilities)	2022-12-31	$420,727,118
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2022-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2022-12-31	No
Were any leases to which the plan was party in default or uncollectible	2022-12-31	No
Assets. partnership/joint venture interests at end of year	2022-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2022-12-31	$0
Investment advisory and management fees	2022-12-31	$292,487
Value of interest in registered invesment companies (eg mutual funds) at end of year	2022-12-31	$151,273,957
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2022-12-31	$249,039,085
Value of interest in pooled separate accounts at end of year	2022-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2022-12-31	$0
Interest on participant loans	2022-12-31	$208,761
Income. Interest from loans (other than to participants)	2022-12-31	$0
Interest earned on other investments	2022-12-31	$0
Income. Interest from US Government securities	2022-12-31	$0
Income. Interest from corporate debt instruments	2022-12-31	$0
Value of interest in master investment trust accounts at end of year	2022-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2022-12-31	$0
Value of interest in common/collective trusts at end of year	2022-12-31	$154,217,841
Value of interest in common/collective trusts at beginning of year	2022-12-31	$160,094,553
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2022-12-31	$8,805,177
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2022-12-31	$7,181,311
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2022-12-31	$7,181,311
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2022-12-31	$109,531
Assets. Value of investments in 103.12 investment entities at end of year	2022-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2022-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2022-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2022-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2022-12-31	$0
Asset value of US Government securities at end of year	2022-12-31	$0
Asset value of US Government securities at beginning of year	2022-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2022-12-31	$-52,354,769
Net investment gain/loss from pooled separate accounts	2022-12-31	$0
Net investment gain or loss from common/collective trusts	2022-12-31	$-21,802,847
Net gain/loss from 103.12 investment entities	2022-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2022-12-31	No
Was there a failure to transmit to the plan any participant contributions	2022-12-31	No
Has the plan failed to provide any benefit when due under the plan	2022-12-31	Yes
Assets. Invements in employer securities at end of year	2022-12-31	$0
Assets. Invements in employer securities at beginning of year	2022-12-31	$0
Assets. Value of employer real property at end of year	2022-12-31	$0
Assets. Value of employer real property at beginning of year	2022-12-31	$0
Contributions received in cash from employer	2022-12-31	$3,233,886
Employer contributions (assets) at end of year	2022-12-31	$268,110
Employer contributions (assets) at beginning of year	2022-12-31	$0
Income. Dividends from preferred stock	2022-12-31	$0
Income. Dividends from common stock	2022-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2022-12-31	$48,305,699
Asset. Corporate debt instrument preferred debt at end of year	2022-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2022-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2022-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2022-12-31	$0
Contract administrator fees	2022-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2022-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2022-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2022-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2022-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2022-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2022-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2022-12-31	$0
Did the plan have assets held for investment	2022-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2022-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2022-12-31	No
Aggregate proceeds on sale of assets	2022-12-31	$0
Aggregate carrying amount (costs) on sale of assets	2022-12-31	$0
Liabilities. Value of acquisition indebtedness at end of year	2022-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2022-12-31	$0
Opinion of an independent qualified public accountant for this plan	2022-12-31	Unqualified
Accountancy firm name	2022-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2022-12-31	750786316
2021 : DIAMOND OFFSHORE 401(K) PLAN 2021 401k financial data
Unrealized appreciation/depreciation of real estate assets	2021-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2021-12-31	$-195,112
Total unrealized appreciation/depreciation of assets	2021-12-31	$-195,112
Total transfer of assets to this plan	2021-12-31	$0
Total transfer of assets from this plan	2021-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2021-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2021-12-31	$0
Expenses. Interest paid	2021-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2021-12-31	$0
Total income from all sources (including contributions)	2021-12-31	$71,884,630
Total loss/gain on sale of assets	2021-12-31	$-2,914
Total of all expenses incurred	2021-12-31	$69,440,544
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2021-12-31	$69,037,861
Expenses. Certain deemed distributions of participant loans	2021-12-31	$76,679
Value of total corrective distributions	2021-12-31	$0
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2021-12-31	$10,971,960
Value of total assets at end of year	2021-12-31	$420,727,118
Value of total assets at beginning of year	2021-12-31	$418,283,032
Total of administrative expenses incurred including professional, contract, advisory and management fees	2021-12-31	$326,004
Total income from rents	2021-12-31	$0
Total interest from all sources	2021-12-31	$225,642
Total dividends received (eg from common stock, registered investment company shares)	2021-12-31	$13,358,262
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2021-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2021-12-31	$13,358,262
Assets. Real estate other than employer real property at end of year	2021-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2021-12-31	$0
Administrative expenses professional fees incurred	2021-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2021-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2021-12-31	$0
Was this plan covered by a fidelity bond	2021-12-31	Yes
Value of fidelity bond cover	2021-12-31	$5,000,000
If this is an individual account plan, was there a blackout period	2021-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2021-12-31	No
Contributions received from participants	2021-12-31	$10,488,881
Participant contributions at end of year	2021-12-31	$4,199,492
Participant contributions at beginning of year	2021-12-31	$4,823,682
Participant contributions at end of year	2021-12-31	$212,677
Participant contributions at beginning of year	2021-12-31	$175,741
Assets. Other investments not covered elsewhere at end of year	2021-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2021-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2021-12-31	$483,079
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2021-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2021-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2021-12-31	$0
Assets. Loans (other than to participants) at end of year	2021-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2021-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2021-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2021-12-31	$0
Other income not declared elsewhere	2021-12-31	$0
Administrative expenses (other) incurred	2021-12-31	$39,042
Liabilities. Value of operating payables at end of year	2021-12-31	$0
Liabilities. Value of operating payables at beginning of year	2021-12-31	$0
Total non interest bearing cash at end of year	2021-12-31	$0
Total non interest bearing cash at beginning of year	2021-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2021-12-31	No
Income. Non cash contributions	2021-12-31	$0
Value of net income/loss	2021-12-31	$2,444,086
Value of net assets at end of year (total assets less liabilities)	2021-12-31	$420,727,118
Value of net assets at beginning of year (total assets less liabilities)	2021-12-31	$418,283,032
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2021-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2021-12-31	No
Were any leases to which the plan was party in default or uncollectible	2021-12-31	No
Assets. partnership/joint venture interests at end of year	2021-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2021-12-31	$0
Investment advisory and management fees	2021-12-31	$286,962
Value of interest in registered invesment companies (eg mutual funds) at end of year	2021-12-31	$249,039,085
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2021-12-31	$244,349,068
Value of interest in pooled separate accounts at end of year	2021-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2021-12-31	$0
Interest on participant loans	2021-12-31	$224,701
Income. Interest from loans (other than to participants)	2021-12-31	$0
Interest earned on other investments	2021-12-31	$0
Income. Interest from US Government securities	2021-12-31	$0
Income. Interest from corporate debt instruments	2021-12-31	$0
Value of interest in master investment trust accounts at end of year	2021-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2021-12-31	$0
Value of interest in common/collective trusts at end of year	2021-12-31	$160,094,553
Value of interest in common/collective trusts at beginning of year	2021-12-31	$159,556,667
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2021-12-31	$7,181,311
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2021-12-31	$8,831,613
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2021-12-31	$8,831,613
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2021-12-31	$941
Assets. Value of investments in 103.12 investment entities at end of year	2021-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2021-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2021-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2021-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2021-12-31	$0
Asset value of US Government securities at end of year	2021-12-31	$0
Asset value of US Government securities at beginning of year	2021-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2021-12-31	$33,429,306
Net investment gain/loss from pooled separate accounts	2021-12-31	$0
Net investment gain or loss from common/collective trusts	2021-12-31	$14,097,486
Net gain/loss from 103.12 investment entities	2021-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2021-12-31	No
Was there a failure to transmit to the plan any participant contributions	2021-12-31	No
Has the plan failed to provide any benefit when due under the plan	2021-12-31	Yes
Assets. Invements in employer securities at end of year	2021-12-31	$0
Assets. Invements in employer securities at beginning of year	2021-12-31	$220,616
Assets. Value of employer real property at end of year	2021-12-31	$0
Assets. Value of employer real property at beginning of year	2021-12-31	$0
Contributions received in cash from employer	2021-12-31	$0
Employer contributions (assets) at end of year	2021-12-31	$0
Employer contributions (assets) at beginning of year	2021-12-31	$325,645
Income. Dividends from preferred stock	2021-12-31	$0
Income. Dividends from common stock	2021-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2021-12-31	$69,037,861
Asset. Corporate debt instrument preferred debt at end of year	2021-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2021-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2021-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2021-12-31	$0
Contract administrator fees	2021-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2021-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2021-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2021-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2021-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2021-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2021-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2021-12-31	$0
Did the plan have assets held for investment	2021-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2021-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2021-12-31	No
Aggregate proceeds on sale of assets	2021-12-31	$21,243
Aggregate carrying amount (costs) on sale of assets	2021-12-31	$24,157
Liabilities. Value of acquisition indebtedness at end of year	2021-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2021-12-31	$0
Opinion of an independent qualified public accountant for this plan	2021-12-31	Unqualified
Accountancy firm name	2021-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2021-12-31	750786316
2020 : DIAMOND OFFSHORE 401(K) PLAN 2020 401k financial data
Unrealized appreciation/depreciation of real estate assets	2020-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2020-12-31	$-2,843,103
Total unrealized appreciation/depreciation of assets	2020-12-31	$-2,843,103
Total transfer of assets to this plan	2020-12-31	$0
Total transfer of assets from this plan	2020-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2020-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2020-12-31	$0
Expenses. Interest paid	2020-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2020-12-31	$0
Total income from all sources (including contributions)	2020-12-31	$85,139,399
Total loss/gain on sale of assets	2020-12-31	$-5,983,721
Total of all expenses incurred	2020-12-31	$140,877,508
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2020-12-31	$140,533,498
Expenses. Certain deemed distributions of participant loans	2020-12-31	$33,703
Value of total corrective distributions	2020-12-31	$0
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2020-12-31	$19,380,625
Value of total assets at end of year	2020-12-31	$418,962,762
Value of total assets at beginning of year	2020-12-31	$474,700,871
Total of administrative expenses incurred including professional, contract, advisory and management fees	2020-12-31	$310,307
Total income from rents	2020-12-31	$0
Total interest from all sources	2020-12-31	$357,463
Total dividends received (eg from common stock, registered investment company shares)	2020-12-31	$8,042,132
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2020-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2020-12-31	$8,042,132
Assets. Real estate other than employer real property at end of year	2020-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2020-12-31	$0
Administrative expenses professional fees incurred	2020-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2020-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2020-12-31	$0
Was this plan covered by a fidelity bond	2020-12-31	Yes
Value of fidelity bond cover	2020-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2020-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2020-12-31	No
Contributions received from participants	2020-12-31	$12,984,374
Participant contributions at end of year	2020-12-31	$4,813,696
Participant contributions at beginning of year	2020-12-31	$7,652,785
Participant contributions at end of year	2020-12-31	$0
Participant contributions at beginning of year	2020-12-31	$262,001
Assets. Other investments not covered elsewhere at end of year	2020-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2020-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2020-12-31	$544,738
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2020-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2020-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2020-12-31	$0
Assets. Loans (other than to participants) at end of year	2020-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2020-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2020-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2020-12-31	$0
Other income not declared elsewhere	2020-12-31	$0
Administrative expenses (other) incurred	2020-12-31	$12,751
Liabilities. Value of operating payables at end of year	2020-12-31	$0
Liabilities. Value of operating payables at beginning of year	2020-12-31	$0
Total non interest bearing cash at end of year	2020-12-31	$0
Total non interest bearing cash at beginning of year	2020-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2020-12-31	No
Income. Non cash contributions	2020-12-31	$0
Value of net income/loss	2020-12-31	$-55,738,109
Value of net assets at end of year (total assets less liabilities)	2020-12-31	$418,962,762
Value of net assets at beginning of year (total assets less liabilities)	2020-12-31	$474,700,871
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2020-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2020-12-31	No
Were any leases to which the plan was party in default or uncollectible	2020-12-31	No
Assets. partnership/joint venture interests at end of year	2020-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2020-12-31	$0
Investment advisory and management fees	2020-12-31	$297,556
Value of interest in registered invesment companies (eg mutual funds) at end of year	2020-12-31	$244,349,068
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2020-12-31	$258,671,275
Value of interest in pooled separate accounts at end of year	2020-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2020-12-31	$0
Interest on participant loans	2020-12-31	$345,279
Income. Interest from loans (other than to participants)	2020-12-31	$0
Interest earned on other investments	2020-12-31	$0
Income. Interest from US Government securities	2020-12-31	$0
Income. Interest from corporate debt instruments	2020-12-31	$0
Value of interest in master investment trust accounts at end of year	2020-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2020-12-31	$0
Value of interest in common/collective trusts at end of year	2020-12-31	$160,747,769
Value of interest in common/collective trusts at beginning of year	2020-12-31	$195,279,801
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2020-12-31	$8,831,613
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2020-12-31	$3,811,870
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2020-12-31	$3,811,870
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2020-12-31	$12,184
Assets. Value of investments in 103.12 investment entities at end of year	2020-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2020-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2020-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2020-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2020-12-31	$0
Asset value of US Government securities at end of year	2020-12-31	$0
Asset value of US Government securities at beginning of year	2020-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2020-12-31	$46,851,998
Net investment gain/loss from pooled separate accounts	2020-12-31	$0
Net investment gain or loss from common/collective trusts	2020-12-31	$19,334,005
Net gain/loss from 103.12 investment entities	2020-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2020-12-31	No
Was there a failure to transmit to the plan any participant contributions	2020-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2020-12-31	Yes
Assets. Invements in employer securities at end of year	2020-12-31	$220,616
Assets. Invements in employer securities at beginning of year	2020-12-31	$7,800,834
Assets. Value of employer real property at end of year	2020-12-31	$0
Assets. Value of employer real property at beginning of year	2020-12-31	$0
Contributions received in cash from employer	2020-12-31	$5,851,513
Employer contributions (assets) at end of year	2020-12-31	$0
Employer contributions (assets) at beginning of year	2020-12-31	$1,222,305
Income. Dividends from preferred stock	2020-12-31	$0
Income. Dividends from common stock	2020-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2020-12-31	$140,533,498
Asset. Corporate debt instrument preferred debt at end of year	2020-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2020-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2020-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2020-12-31	$0
Contract administrator fees	2020-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2020-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2020-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2020-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2020-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2020-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2020-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2020-12-31	$0
Did the plan have assets held for investment	2020-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2020-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2020-12-31	No
Aggregate proceeds on sale of assets	2020-12-31	$845,138
Aggregate carrying amount (costs) on sale of assets	2020-12-31	$6,828,859
Liabilities. Value of acquisition indebtedness at end of year	2020-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2020-12-31	$0
Opinion of an independent qualified public accountant for this plan	2020-12-31	Unqualified
Accountancy firm name	2020-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2020-12-31	750786316
2019 : DIAMOND OFFSHORE 401(K) PLAN 2019 401k financial data
Unrealized appreciation/depreciation of real estate assets	2019-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2019-12-31	$-1,521,769
Total unrealized appreciation/depreciation of assets	2019-12-31	$-1,521,769
Total transfer of assets to this plan	2019-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2019-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2019-12-31	$0
Expenses. Interest paid	2019-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2019-12-31	$0
Total income from all sources (including contributions)	2019-12-31	$111,820,238
Total loss/gain on sale of assets	2019-12-31	$-249,874
Total of all expenses incurred	2019-12-31	$42,382,864
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2019-12-31	$42,178,719
Expenses. Certain deemed distributions of participant loans	2019-12-31	$21,766
Value of total corrective distributions	2019-12-31	$0
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2019-12-31	$23,718,457
Value of total assets at end of year	2019-12-31	$474,700,871
Value of total assets at beginning of year	2019-12-31	$405,263,497
Total of administrative expenses incurred including professional, contract, advisory and management fees	2019-12-31	$182,379
Total income from rents	2019-12-31	$0
Total interest from all sources	2019-12-31	$503,015
Total dividends received (eg from common stock, registered investment company shares)	2019-12-31	$13,309,367
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2019-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2019-12-31	$13,309,367
Assets. Real estate other than employer real property at end of year	2019-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2019-12-31	$0
Administrative expenses professional fees incurred	2019-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2019-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2019-12-31	$0
Was this plan covered by a fidelity bond	2019-12-31	Yes
Value of fidelity bond cover	2019-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2019-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2019-12-31	No
Contributions received from participants	2019-12-31	$14,656,657
Participant contributions at end of year	2019-12-31	$7,652,785
Participant contributions at beginning of year	2019-12-31	$8,315,354
Participant contributions at end of year	2019-12-31	$262,001
Participant contributions at beginning of year	2019-12-31	$268,710
Assets. Other investments not covered elsewhere at end of year	2019-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2019-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2019-12-31	$990,049
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2019-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2019-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2019-12-31	$0
Assets. Loans (other than to participants) at end of year	2019-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2019-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2019-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2019-12-31	$0
Other income not declared elsewhere	2019-12-31	$0
Administrative expenses (other) incurred	2019-12-31	$-184,797
Liabilities. Value of operating payables at end of year	2019-12-31	$0
Liabilities. Value of operating payables at beginning of year	2019-12-31	$0
Total non interest bearing cash at end of year	2019-12-31	$0
Total non interest bearing cash at beginning of year	2019-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2019-12-31	No
Income. Non cash contributions	2019-12-31	$0
Value of net income/loss	2019-12-31	$69,437,374
Value of net assets at end of year (total assets less liabilities)	2019-12-31	$474,700,871
Value of net assets at beginning of year (total assets less liabilities)	2019-12-31	$405,263,497
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2019-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2019-12-31	No
Were any leases to which the plan was party in default or uncollectible	2019-12-31	No
Assets. partnership/joint venture interests at end of year	2019-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2019-12-31	$0
Investment advisory and management fees	2019-12-31	$367,176
Value of interest in registered invesment companies (eg mutual funds) at end of year	2019-12-31	$258,671,275
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2019-12-31	$340,371,188
Value of interest in pooled separate accounts at end of year	2019-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2019-12-31	$0
Interest on participant loans	2019-12-31	$421,689
Income. Interest from loans (other than to participants)	2019-12-31	$0
Interest earned on other investments	2019-12-31	$0
Income. Interest from US Government securities	2019-12-31	$0
Income. Interest from corporate debt instruments	2019-12-31	$0
Value of interest in master investment trust accounts at end of year	2019-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2019-12-31	$0
Value of interest in common/collective trusts at end of year	2019-12-31	$195,279,801
Value of interest in common/collective trusts at beginning of year	2019-12-31	$43,809,805
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2019-12-31	$3,811,870
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2019-12-31	$4,584,469
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2019-12-31	$4,584,469
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2019-12-31	$81,326
Assets. Value of investments in 103.12 investment entities at end of year	2019-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2019-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2019-12-31	$0
Asset value of US Government securities at end of year	2019-12-31	$0
Asset value of US Government securities at beginning of year	2019-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2019-12-31	$67,698,505
Net investment gain/loss from pooled separate accounts	2019-12-31	$0
Net investment gain or loss from common/collective trusts	2019-12-31	$8,362,537
Net gain/loss from 103.12 investment entities	2019-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2019-12-31	No
Was there a failure to transmit to the plan any participant contributions	2019-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2019-12-31	Yes
Assets. Invements in employer securities at end of year	2019-12-31	$7,800,834
Assets. Invements in employer securities at beginning of year	2019-12-31	$6,881,426
Assets. Value of employer real property at end of year	2019-12-31	$0
Assets. Value of employer real property at beginning of year	2019-12-31	$0
Contributions received in cash from employer	2019-12-31	$8,071,751
Employer contributions (assets) at end of year	2019-12-31	$1,222,305
Employer contributions (assets) at beginning of year	2019-12-31	$1,032,545
Income. Dividends from preferred stock	2019-12-31	$0
Income. Dividends from common stock	2019-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2019-12-31	$42,178,719
Asset. Corporate debt instrument preferred debt at end of year	2019-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2019-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2019-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2019-12-31	$0
Contract administrator fees	2019-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2019-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2019-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2019-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2019-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2019-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2019-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2019-12-31	$0
Did the plan have assets held for investment	2019-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2019-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2019-12-31	No
Aggregate proceeds on sale of assets	2019-12-31	$954,057
Aggregate carrying amount (costs) on sale of assets	2019-12-31	$1,203,931
Liabilities. Value of acquisition indebtedness at end of year	2019-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2019-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2019-12-31	No
Opinion of an independent qualified public accountant for this plan	2019-12-31	Unqualified
Accountancy firm name	2019-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2019-12-31	750786316
2018 : DIAMOND OFFSHORE 401(K) PLAN 2018 401k financial data
Unrealized appreciation/depreciation of real estate assets	2018-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2018-12-31	$-5,783,810
Total unrealized appreciation/depreciation of assets	2018-12-31	$-5,783,810
Total transfer of assets to this plan	2018-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2018-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2018-12-31	$0
Expenses. Interest paid	2018-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2018-12-31	$0
Total income from all sources (including contributions)	2018-12-31	$-4,166,604
Total loss/gain on sale of assets	2018-12-31	$-42,740
Total of all expenses incurred	2018-12-31	$67,152,569
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2018-12-31	$67,040,950
Expenses. Certain deemed distributions of participant loans	2018-12-31	$39,966
Value of total corrective distributions	2018-12-31	$3,341
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2018-12-31	$22,714,604
Value of total assets at end of year	2018-12-31	$405,263,497
Value of total assets at beginning of year	2018-12-31	$476,582,670
Total of administrative expenses incurred including professional, contract, advisory and management fees	2018-12-31	$68,312
Total income from rents	2018-12-31	$0
Total interest from all sources	2018-12-31	$1,303,174
Total dividends received (eg from common stock, registered investment company shares)	2018-12-31	$25,425,068
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2018-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2018-12-31	$25,425,068
Assets. Real estate other than employer real property at end of year	2018-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2018-12-31	$0
Administrative expenses professional fees incurred	2018-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2018-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2018-12-31	$0
Was this plan covered by a fidelity bond	2018-12-31	Yes
Value of fidelity bond cover	2018-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2018-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2018-12-31	No
Contributions received from participants	2018-12-31	$14,133,924
Participant contributions at end of year	2018-12-31	$8,315,354
Participant contributions at beginning of year	2018-12-31	$9,504,277
Participant contributions at end of year	2018-12-31	$268,710
Participant contributions at beginning of year	2018-12-31	$377,152
Assets. Other investments not covered elsewhere at end of year	2018-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2018-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2018-12-31	$745,655
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2018-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2018-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2018-12-31	$0
Assets. Loans (other than to participants) at end of year	2018-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2018-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2018-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2018-12-31	$0
Other income not declared elsewhere	2018-12-31	$0
Administrative expenses (other) incurred	2018-12-31	$-268,885
Liabilities. Value of operating payables at end of year	2018-12-31	$0
Liabilities. Value of operating payables at beginning of year	2018-12-31	$0
Total non interest bearing cash at end of year	2018-12-31	$0
Total non interest bearing cash at beginning of year	2018-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2018-12-31	No
Income. Non cash contributions	2018-12-31	$0
Value of net income/loss	2018-12-31	$-71,319,173
Value of net assets at end of year (total assets less liabilities)	2018-12-31	$405,263,497
Value of net assets at beginning of year (total assets less liabilities)	2018-12-31	$476,582,670
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2018-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2018-12-31	No
Were any leases to which the plan was party in default or uncollectible	2018-12-31	No
Assets. partnership/joint venture interests at end of year	2018-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2018-12-31	$0
Investment advisory and management fees	2018-12-31	$337,197
Value of interest in registered invesment companies (eg mutual funds) at end of year	2018-12-31	$340,371,188
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2018-12-31	$398,774,469
Value of interest in pooled separate accounts at end of year	2018-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2018-12-31	$0
Interest on participant loans	2018-12-31	$406,501
Income. Interest from loans (other than to participants)	2018-12-31	$0
Interest earned on other investments	2018-12-31	$839,298
Income. Interest from US Government securities	2018-12-31	$0
Income. Interest from corporate debt instruments	2018-12-31	$0
Value of interest in master investment trust accounts at end of year	2018-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2018-12-31	$0
Value of interest in common/collective trusts at end of year	2018-12-31	$43,809,805
Value of interest in common/collective trusts at beginning of year	2018-12-31	$48,892,212
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2018-12-31	$4,584,469
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2018-12-31	$5,433,395
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2018-12-31	$5,433,395
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2018-12-31	$57,375
Assets. Value of investments in 103.12 investment entities at end of year	2018-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2018-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2018-12-31	$0
Asset value of US Government securities at end of year	2018-12-31	$0
Asset value of US Government securities at beginning of year	2018-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2018-12-31	$-48,126,425
Net investment gain/loss from pooled separate accounts	2018-12-31	$0
Net investment gain or loss from common/collective trusts	2018-12-31	$343,525
Net gain/loss from 103.12 investment entities	2018-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2018-12-31	No
Was there a failure to transmit to the plan any participant contributions	2018-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2018-12-31	Yes
Assets. Invements in employer securities at end of year	2018-12-31	$6,881,426
Assets. Invements in employer securities at beginning of year	2018-12-31	$12,102,671
Assets. Value of employer real property at end of year	2018-12-31	$0
Assets. Value of employer real property at beginning of year	2018-12-31	$0
Contributions received in cash from employer	2018-12-31	$7,835,025
Employer contributions (assets) at end of year	2018-12-31	$1,032,545
Employer contributions (assets) at beginning of year	2018-12-31	$1,498,494
Income. Dividends from preferred stock	2018-12-31	$0
Income. Dividends from common stock	2018-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2018-12-31	$67,040,950
Asset. Corporate debt instrument preferred debt at end of year	2018-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2018-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2018-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2018-12-31	$0
Contract administrator fees	2018-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2018-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2018-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2018-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2018-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2018-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2018-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2018-12-31	$0
Did the plan have assets held for investment	2018-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2018-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2018-12-31	No
Aggregate proceeds on sale of assets	2018-12-31	$3,121,200
Aggregate carrying amount (costs) on sale of assets	2018-12-31	$3,163,940
Liabilities. Value of acquisition indebtedness at end of year	2018-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2018-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2018-12-31	No
Opinion of an independent qualified public accountant for this plan	2018-12-31	Unqualified
Accountancy firm name	2018-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2018-12-31	750786316
2017 : DIAMOND OFFSHORE 401(K) PLAN 2017 401k financial data
Unrealized appreciation/depreciation of real estate assets	2017-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2017-12-31	$1,558,566
Total unrealized appreciation/depreciation of assets	2017-12-31	$1,558,566
Total transfer of assets to this plan	2017-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2017-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2017-12-31	$0
Expenses. Interest paid	2017-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2017-12-31	$0
Total income from all sources (including contributions)	2017-12-31	$100,093,498
Total loss/gain on sale of assets	2017-12-31	$-339,585
Total of all expenses incurred	2017-12-31	$63,502,115
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2017-12-31	$63,411,269
Expenses. Certain deemed distributions of participant loans	2017-12-31	$0
Value of total corrective distributions	2017-12-31	$6,991
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2017-12-31	$26,087,410
Value of total assets at end of year	2017-12-31	$476,582,670
Value of total assets at beginning of year	2017-12-31	$439,991,287
Total of administrative expenses incurred including professional, contract, advisory and management fees	2017-12-31	$83,855
Total income from rents	2017-12-31	$0
Total interest from all sources	2017-12-31	$1,360,049
Total dividends received (eg from common stock, registered investment company shares)	2017-12-31	$18,394,570
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2017-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2017-12-31	$18,394,570
Assets. Real estate other than employer real property at end of year	2017-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2017-12-31	$0
Administrative expenses professional fees incurred	2017-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2017-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2017-12-31	$0
Was this plan covered by a fidelity bond	2017-12-31	Yes
Value of fidelity bond cover	2017-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2017-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2017-12-31	No
Contributions received from participants	2017-12-31	$16,117,738
Participant contributions at end of year	2017-12-31	$9,504,277
Participant contributions at beginning of year	2017-12-31	$9,908,509
Participant contributions at end of year	2017-12-31	$377,152
Participant contributions at beginning of year	2017-12-31	$292,748
Assets. Other investments not covered elsewhere at end of year	2017-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2017-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2017-12-31	$1,464,154
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2017-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2017-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2017-12-31	$0
Assets. Loans (other than to participants) at end of year	2017-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2017-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2017-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2017-12-31	$0
Other income not declared elsewhere	2017-12-31	$0
Administrative expenses (other) incurred	2017-12-31	$-236,219
Liabilities. Value of operating payables at end of year	2017-12-31	$0
Liabilities. Value of operating payables at beginning of year	2017-12-31	$0
Total non interest bearing cash at end of year	2017-12-31	$0
Total non interest bearing cash at beginning of year	2017-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2017-12-31	No
Income. Non cash contributions	2017-12-31	$0
Value of net income/loss	2017-12-31	$36,591,383
Value of net assets at end of year (total assets less liabilities)	2017-12-31	$476,582,670
Value of net assets at beginning of year (total assets less liabilities)	2017-12-31	$439,991,287
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2017-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2017-12-31	No
Were any leases to which the plan was party in default or uncollectible	2017-12-31	No
Assets. partnership/joint venture interests at end of year	2017-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2017-12-31	$0
Investment advisory and management fees	2017-12-31	$320,074
Value of interest in registered invesment companies (eg mutual funds) at end of year	2017-12-31	$398,774,469
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2017-12-31	$343,415,908
Value of interest in pooled separate accounts at end of year	2017-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2017-12-31	$0
Interest on participant loans	2017-12-31	$415,056
Income. Interest from loans (other than to participants)	2017-12-31	$0
Interest earned on other investments	2017-12-31	$917,322
Income. Interest from US Government securities	2017-12-31	$0
Income. Interest from corporate debt instruments	2017-12-31	$0
Value of interest in master investment trust accounts at end of year	2017-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2017-12-31	$0
Value of interest in common/collective trusts at end of year	2017-12-31	$48,892,212
Value of interest in common/collective trusts at beginning of year	2017-12-31	$66,994,416
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2017-12-31	$5,433,395
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2017-12-31	$8,118,126
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2017-12-31	$8,118,126
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2017-12-31	$27,671
Assets. Value of investments in 103.12 investment entities at end of year	2017-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2017-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2017-12-31	$0
Asset value of US Government securities at end of year	2017-12-31	$0
Asset value of US Government securities at beginning of year	2017-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2017-12-31	$52,216,880
Net investment gain/loss from pooled separate accounts	2017-12-31	$0
Net investment gain or loss from common/collective trusts	2017-12-31	$815,608
Net gain/loss from 103.12 investment entities	2017-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2017-12-31	No
Was there a failure to transmit to the plan any participant contributions	2017-12-31	No
Has the plan failed to provide any benefit when due under the plan	2017-12-31	No
Assets. Invements in employer securities at end of year	2017-12-31	$12,102,671
Assets. Invements in employer securities at beginning of year	2017-12-31	$9,241,393
Assets. Value of employer real property at end of year	2017-12-31	$0
Assets. Value of employer real property at beginning of year	2017-12-31	$0
Contributions received in cash from employer	2017-12-31	$8,505,518
Employer contributions (assets) at end of year	2017-12-31	$1,498,494
Employer contributions (assets) at beginning of year	2017-12-31	$2,020,187
Income. Dividends from preferred stock	2017-12-31	$0
Income. Dividends from common stock	2017-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2017-12-31	$63,411,269
Asset. Corporate debt instrument preferred debt at end of year	2017-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2017-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2017-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2017-12-31	$0
Contract administrator fees	2017-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2017-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2017-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2017-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2017-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2017-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2017-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2017-12-31	$0
Did the plan have assets held for investment	2017-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2017-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2017-12-31	No
Aggregate proceeds on sale of assets	2017-12-31	$1,721,359
Aggregate carrying amount (costs) on sale of assets	2017-12-31	$2,060,944
Liabilities. Value of acquisition indebtedness at end of year	2017-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2017-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2017-12-31	No
Opinion of an independent qualified public accountant for this plan	2017-12-31	Unqualified
Accountancy firm name	2017-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2017-12-31	750786316
2016 : DIAMOND OFFSHORE 401(K) PLAN 2016 401k financial data
Unrealized appreciation/depreciation of real estate assets	2016-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2016-12-31	$-2,480,741
Total unrealized appreciation/depreciation of assets	2016-12-31	$-2,480,741
Total transfer of assets to this plan	2016-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2016-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2016-12-31	$0
Expenses. Interest paid	2016-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2016-12-31	$0
Total income from all sources (including contributions)	2016-12-31	$58,149,088
Total loss/gain on sale of assets	2016-12-31	$-95,532
Total of all expenses incurred	2016-12-31	$108,531,208
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2016-12-31	$108,395,729
Expenses. Certain deemed distributions of participant loans	2016-12-31	$16,302
Value of total corrective distributions	2016-12-31	$9,432
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2016-12-31	$31,387,255
Value of total assets at end of year	2016-12-31	$439,991,287
Value of total assets at beginning of year	2016-12-31	$490,373,407
Total of administrative expenses incurred including professional, contract, advisory and management fees	2016-12-31	$109,745
Total income from rents	2016-12-31	$0
Total interest from all sources	2016-12-31	$1,619,633
Total dividends received (eg from common stock, registered investment company shares)	2016-12-31	$14,458,164
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2016-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2016-12-31	$14,458,164
Assets. Real estate other than employer real property at end of year	2016-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2016-12-31	$0
Administrative expenses professional fees incurred	2016-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2016-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2016-12-31	$0
Was this plan covered by a fidelity bond	2016-12-31	Yes
Value of fidelity bond cover	2016-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2016-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2016-12-31	No
Contributions received from participants	2016-12-31	$18,945,946
Participant contributions at end of year	2016-12-31	$9,908,509
Participant contributions at beginning of year	2016-12-31	$12,263,364
Participant contributions at end of year	2016-12-31	$292,748
Participant contributions at beginning of year	2016-12-31	$315,012
Assets. Other investments not covered elsewhere at end of year	2016-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2016-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2016-12-31	$503,703
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2016-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2016-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2016-12-31	$0
Assets. Loans (other than to participants) at end of year	2016-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2016-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2016-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2016-12-31	$0
Other income not declared elsewhere	2016-12-31	$0
Administrative expenses (other) incurred	2016-12-31	$-176,772
Liabilities. Value of operating payables at end of year	2016-12-31	$0
Liabilities. Value of operating payables at beginning of year	2016-12-31	$0
Total non interest bearing cash at end of year	2016-12-31	$0
Total non interest bearing cash at beginning of year	2016-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2016-12-31	No
Income. Non cash contributions	2016-12-31	$0
Value of net income/loss	2016-12-31	$-50,382,120
Value of net assets at end of year (total assets less liabilities)	2016-12-31	$439,991,287
Value of net assets at beginning of year (total assets less liabilities)	2016-12-31	$490,373,407
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2016-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2016-12-31	No
Were any leases to which the plan was party in default or uncollectible	2016-12-31	No
Assets. partnership/joint venture interests at end of year	2016-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2016-12-31	$0
Investment advisory and management fees	2016-12-31	$286,517
Value of interest in registered invesment companies (eg mutual funds) at end of year	2016-12-31	$343,415,908
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2016-12-31	$371,680,415
Value of interest in pooled separate accounts at end of year	2016-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2016-12-31	$0
Interest on participant loans	2016-12-31	$439,890
Income. Interest from loans (other than to participants)	2016-12-31	$0
Interest earned on other investments	2016-12-31	$1,179,743
Income. Interest from US Government securities	2016-12-31	$0
Income. Interest from corporate debt instruments	2016-12-31	$0
Value of interest in master investment trust accounts at end of year	2016-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2016-12-31	$0
Value of interest in common/collective trusts at end of year	2016-12-31	$66,994,416
Value of interest in common/collective trusts at beginning of year	2016-12-31	$84,917,728
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2016-12-31	$8,118,126
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2016-12-31	$8,476,681
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2016-12-31	$8,476,681
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2016-12-31	$0
Assets. Value of investments in 103.12 investment entities at end of year	2016-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2016-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2016-12-31	$0
Asset value of US Government securities at end of year	2016-12-31	$0
Asset value of US Government securities at beginning of year	2016-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2016-12-31	$12,080,567
Net investment gain/loss from pooled separate accounts	2016-12-31	$0
Net investment gain or loss from common/collective trusts	2016-12-31	$1,179,742
Net gain/loss from 103.12 investment entities	2016-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2016-12-31	No
Was there a failure to transmit to the plan any participant contributions	2016-12-31	No
Has the plan failed to provide any benefit when due under the plan	2016-12-31	No
Assets. Invements in employer securities at end of year	2016-12-31	$9,241,393
Assets. Invements in employer securities at beginning of year	2016-12-31	$9,649,034
Assets. Value of employer real property at end of year	2016-12-31	$0
Assets. Value of employer real property at beginning of year	2016-12-31	$0
Contributions received in cash from employer	2016-12-31	$11,937,606
Employer contributions (assets) at end of year	2016-12-31	$2,020,187
Employer contributions (assets) at beginning of year	2016-12-31	$3,071,173
Income. Dividends from preferred stock	2016-12-31	$0
Income. Dividends from common stock	2016-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2016-12-31	$108,395,729
Asset. Corporate debt instrument preferred debt at end of year	2016-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2016-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2016-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2016-12-31	$0
Contract administrator fees	2016-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2016-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2016-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2016-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2016-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2016-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2016-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2016-12-31	$0
Did the plan have assets held for investment	2016-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2016-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2016-12-31	No
Aggregate proceeds on sale of assets	2016-12-31	$2,877,377
Aggregate carrying amount (costs) on sale of assets	2016-12-31	$2,972,909
Liabilities. Value of acquisition indebtedness at end of year	2016-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2016-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2016-12-31	No
Opinion of an independent qualified public accountant for this plan	2016-12-31	Unqualified
Accountancy firm name	2016-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2016-12-31	750786316
2015 : DIAMOND OFFSHORE 401(K) PLAN 2015 401k financial data
Unrealized appreciation/depreciation of real estate assets	2015-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2015-12-31	$-6,503,583
Total unrealized appreciation/depreciation of assets	2015-12-31	$-6,503,583
Total transfer of assets to this plan	2015-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2015-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2015-12-31	$0
Expenses. Interest paid	2015-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2015-12-31	$0
Total income from all sources (including contributions)	2015-12-31	$51,339,903
Total loss/gain on sale of assets	2015-12-31	$-1,136,895
Total of all expenses incurred	2015-12-31	$131,783,675
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2015-12-31	$131,744,132
Expenses. Certain deemed distributions of participant loans	2015-12-31	$6,383
Value of total corrective distributions	2015-12-31	$48,954
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2015-12-31	$51,864,750
Value of total assets at end of year	2015-12-31	$490,373,407
Value of total assets at beginning of year	2015-12-31	$570,817,179
Total of administrative expenses incurred including professional, contract, advisory and management fees	2015-12-31	$-15,794
Total income from rents	2015-12-31	$0
Total interest from all sources	2015-12-31	$1,907,004
Total dividends received (eg from common stock, registered investment company shares)	2015-12-31	$17,911,592
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2015-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2015-12-31	$17,698,597
Assets. Real estate other than employer real property at end of year	2015-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2015-12-31	$0
Administrative expenses professional fees incurred	2015-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2015-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2015-12-31	$0
Was this plan covered by a fidelity bond	2015-12-31	Yes
Value of fidelity bond cover	2015-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2015-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2015-12-31	No
Contributions received from participants	2015-12-31	$27,640,273
Participant contributions at end of year	2015-12-31	$12,263,364
Participant contributions at beginning of year	2015-12-31	$14,303,914
Participant contributions at end of year	2015-12-31	$315,012
Participant contributions at beginning of year	2015-12-31	$445,618
Assets. Other investments not covered elsewhere at end of year	2015-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2015-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2015-12-31	$1,008,752
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2015-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2015-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2015-12-31	$0
Assets. Loans (other than to participants) at end of year	2015-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2015-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2015-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2015-12-31	$0
Other income not declared elsewhere	2015-12-31	$0
Administrative expenses (other) incurred	2015-12-31	$-217,225
Liabilities. Value of operating payables at end of year	2015-12-31	$0
Liabilities. Value of operating payables at beginning of year	2015-12-31	$0
Total non interest bearing cash at end of year	2015-12-31	$0
Total non interest bearing cash at beginning of year	2015-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2015-12-31	No
Income. Non cash contributions	2015-12-31	$0
Value of net income/loss	2015-12-31	$-80,443,772
Value of net assets at end of year (total assets less liabilities)	2015-12-31	$490,373,407
Value of net assets at beginning of year (total assets less liabilities)	2015-12-31	$570,817,179
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2015-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2015-12-31	No
Were any leases to which the plan was party in default or uncollectible	2015-12-31	No
Assets. partnership/joint venture interests at end of year	2015-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2015-12-31	$0
Investment advisory and management fees	2015-12-31	$201,431
Value of interest in registered invesment companies (eg mutual funds) at end of year	2015-12-31	$371,680,415
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2015-12-31	$429,386,506
Value of interest in pooled separate accounts at end of year	2015-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2015-12-31	$0
Interest on participant loans	2015-12-31	$539,946
Income. Interest from loans (other than to participants)	2015-12-31	$0
Interest earned on other investments	2015-12-31	$1,367,058
Income. Interest from US Government securities	2015-12-31	$0
Income. Interest from corporate debt instruments	2015-12-31	$0
Value of interest in master investment trust accounts at end of year	2015-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2015-12-31	$0
Value of interest in common/collective trusts at end of year	2015-12-31	$84,917,728
Value of interest in common/collective trusts at beginning of year	2015-12-31	$100,503,281
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2015-12-31	$8,476,681
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2015-12-31	$7,910,635
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2015-12-31	$7,910,635
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2015-12-31	$0
Assets. Value of investments in 103.12 investment entities at end of year	2015-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2015-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2015-12-31	$0
Asset value of US Government securities at end of year	2015-12-31	$0
Asset value of US Government securities at beginning of year	2015-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2015-12-31	$-12,622,666
Net investment gain/loss from pooled separate accounts	2015-12-31	$0
Net investment gain or loss from common/collective trusts	2015-12-31	$-80,299
Net gain/loss from 103.12 investment entities	2015-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2015-12-31	No
Was there a failure to transmit to the plan any participant contributions	2015-12-31	No
Has the plan failed to provide any benefit when due under the plan	2015-12-31	No
Assets. Invements in employer securities at end of year	2015-12-31	$9,649,034
Assets. Invements in employer securities at beginning of year	2015-12-31	$13,330,382
Assets. Value of employer real property at end of year	2015-12-31	$0
Assets. Value of employer real property at beginning of year	2015-12-31	$0
Contributions received in cash from employer	2015-12-31	$23,215,725
Employer contributions (assets) at end of year	2015-12-31	$3,071,173
Employer contributions (assets) at beginning of year	2015-12-31	$4,936,843
Income. Dividends from preferred stock	2015-12-31	$0
Income. Dividends from common stock	2015-12-31	$212,995
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2015-12-31	$131,744,132
Asset. Corporate debt instrument preferred debt at end of year	2015-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2015-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2015-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2015-12-31	$0
Contract administrator fees	2015-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2015-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2015-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2015-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2015-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2015-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2015-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2015-12-31	$0
Did the plan have assets held for investment	2015-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2015-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2015-12-31	No
Aggregate proceeds on sale of assets	2015-12-31	$2,931,728
Aggregate carrying amount (costs) on sale of assets	2015-12-31	$4,068,623
Liabilities. Value of acquisition indebtedness at end of year	2015-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2015-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2015-12-31	No
Opinion of an independent qualified public accountant for this plan	2015-12-31	Unqualified
Accountancy firm name	2015-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2015-12-31	750786316
2014 : DIAMOND OFFSHORE 401(K) PLAN 2014 401k financial data
Unrealized appreciation/depreciation of real estate assets	2014-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2014-12-31	$-5,370,625
Total unrealized appreciation/depreciation of assets	2014-12-31	$-5,370,625
Total transfer of assets to this plan	2014-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2014-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2014-12-31	$0
Expenses. Interest paid	2014-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2014-12-31	$0
Total income from all sources (including contributions)	2014-12-31	$94,088,164
Total loss/gain on sale of assets	2014-12-31	$-1,099,365
Total of all expenses incurred	2014-12-31	$43,654,407
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2014-12-31	$43,629,238
Expenses. Certain deemed distributions of participant loans	2014-12-31	$22,512
Value of total corrective distributions	2014-12-31	$34,458
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2014-12-31	$66,664,025
Value of total assets at end of year	2014-12-31	$570,817,179
Value of total assets at beginning of year	2014-12-31	$520,383,422
Total of administrative expenses incurred including professional, contract, advisory and management fees	2014-12-31	$-31,801
Total income from rents	2014-12-31	$0
Total interest from all sources	2014-12-31	$1,799,452
Total dividends received (eg from common stock, registered investment company shares)	2014-12-31	$17,640,470
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2014-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2014-12-31	$16,502,215
Assets. Real estate other than employer real property at end of year	2014-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2014-12-31	$0
Administrative expenses professional fees incurred	2014-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2014-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2014-12-31	$0
Was this plan covered by a fidelity bond	2014-12-31	Yes
Value of fidelity bond cover	2014-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2014-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2014-12-31	No
Contributions received from participants	2014-12-31	$29,690,871
Participant contributions at end of year	2014-12-31	$14,303,914
Participant contributions at beginning of year	2014-12-31	$14,552,157
Participant contributions at end of year	2014-12-31	$445,618
Participant contributions at beginning of year	2014-12-31	$468,055
Assets. Other investments not covered elsewhere at end of year	2014-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2014-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2014-12-31	$2,113,503
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2014-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2014-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2014-12-31	$0
Assets. Loans (other than to participants) at end of year	2014-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2014-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2014-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2014-12-31	$0
Other income not declared elsewhere	2014-12-31	$0
Administrative expenses (other) incurred	2014-12-31	$-193,751
Liabilities. Value of operating payables at end of year	2014-12-31	$0
Liabilities. Value of operating payables at beginning of year	2014-12-31	$0
Total non interest bearing cash at end of year	2014-12-31	$0
Total non interest bearing cash at beginning of year	2014-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2014-12-31	No
Income. Non cash contributions	2014-12-31	$0
Value of net income/loss	2014-12-31	$50,433,757
Value of net assets at end of year (total assets less liabilities)	2014-12-31	$570,817,179
Value of net assets at beginning of year (total assets less liabilities)	2014-12-31	$520,383,422
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2014-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2014-12-31	No
Were any leases to which the plan was party in default or uncollectible	2014-12-31	No
Assets. partnership/joint venture interests at end of year	2014-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2014-12-31	$0
Investment advisory and management fees	2014-12-31	$161,950
Value of interest in registered invesment companies (eg mutual funds) at end of year	2014-12-31	$429,386,506
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2014-12-31	$376,579,663
Value of interest in pooled separate accounts at end of year	2014-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2014-12-31	$0
Interest on participant loans	2014-12-31	$593,964
Income. Interest from loans (other than to participants)	2014-12-31	$0
Interest earned on other investments	2014-12-31	$0
Income. Interest from US Government securities	2014-12-31	$0
Income. Interest from corporate debt instruments	2014-12-31	$0
Value of interest in master investment trust accounts at end of year	2014-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2014-12-31	$0
Value of interest in common/collective trusts at end of year	2014-12-31	$100,503,281
Value of interest in common/collective trusts at beginning of year	2014-12-31	$100,754,736
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2014-12-31	$7,910,635
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2014-12-31	$5,882,016
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2014-12-31	$5,882,016
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2014-12-31	$1,205,488
Assets. Value of investments in 103.12 investment entities at end of year	2014-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2014-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2014-12-31	$0
Asset value of US Government securities at end of year	2014-12-31	$0
Asset value of US Government securities at beginning of year	2014-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2014-12-31	$14,425,977
Net investment gain/loss from pooled separate accounts	2014-12-31	$0
Net investment gain or loss from common/collective trusts	2014-12-31	$28,230
Net gain/loss from 103.12 investment entities	2014-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2014-12-31	No
Was there a failure to transmit to the plan any participant contributions	2014-12-31	No
Has the plan failed to provide any benefit when due under the plan	2014-12-31	No
Assets. Invements in employer securities at end of year	2014-12-31	$13,330,382
Assets. Invements in employer securities at beginning of year	2014-12-31	$17,985,343
Assets. Value of employer real property at end of year	2014-12-31	$0
Assets. Value of employer real property at beginning of year	2014-12-31	$0
Contributions received in cash from employer	2014-12-31	$34,859,651
Employer contributions (assets) at end of year	2014-12-31	$4,936,843
Employer contributions (assets) at beginning of year	2014-12-31	$4,161,452
Income. Dividends from preferred stock	2014-12-31	$0
Income. Dividends from common stock	2014-12-31	$1,138,255
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2014-12-31	$43,629,238
Asset. Corporate debt instrument preferred debt at end of year	2014-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2014-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2014-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2014-12-31	$0
Contract administrator fees	2014-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2014-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2014-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2014-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2014-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2014-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2014-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2014-12-31	$0
Did the plan have assets held for investment	2014-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2014-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2014-12-31	No
Aggregate proceeds on sale of assets	2014-12-31	$4,194,005
Aggregate carrying amount (costs) on sale of assets	2014-12-31	$5,293,370
Liabilities. Value of acquisition indebtedness at end of year	2014-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2014-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2014-12-31	No
Opinion of an independent qualified public accountant for this plan	2014-12-31	Unqualified
Accountancy firm name	2014-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2014-12-31	750786316
2013 : DIAMOND OFFSHORE 401(K) PLAN 2013 401k financial data
Unrealized appreciation/depreciation of real estate assets	2013-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2013-12-31	$-3,151,405
Total unrealized appreciation/depreciation of assets	2013-12-31	$-3,151,405
Total transfer of assets to this plan	2013-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2013-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2013-12-31	$0
Expenses. Interest paid	2013-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2013-12-31	$0
Total income from all sources (including contributions)	2013-12-31	$128,955,354
Total loss/gain on sale of assets	2013-12-31	$-198,280
Total of all expenses incurred	2013-12-31	$29,789,379
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2013-12-31	$29,741,680
Expenses. Certain deemed distributions of participant loans	2013-12-31	$0
Value of total corrective distributions	2013-12-31	$38,972
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2013-12-31	$58,757,507
Value of total assets at end of year	2013-12-31	$520,383,422
Value of total assets at beginning of year	2013-12-31	$421,217,447
Total of administrative expenses incurred including professional, contract, advisory and management fees	2013-12-31	$8,727
Total income from rents	2013-12-31	$0
Total interest from all sources	2013-12-31	$593,046
Total dividends received (eg from common stock, registered investment company shares)	2013-12-31	$13,307,367
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2013-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2013-12-31	$12,309,638
Assets. Real estate other than employer real property at end of year	2013-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2013-12-31	$0
Administrative expenses professional fees incurred	2013-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2013-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2013-12-31	$0
Was this plan covered by a fidelity bond	2013-12-31	Yes
Value of fidelity bond cover	2013-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2013-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2013-12-31	No
Contributions received from participants	2013-12-31	$26,507,957
Participant contributions at end of year	2013-12-31	$14,552,157
Participant contributions at beginning of year	2013-12-31	$14,253,428
Participant contributions at end of year	2013-12-31	$468,055
Participant contributions at beginning of year	2013-12-31	$277,083
Assets. Other investments not covered elsewhere at end of year	2013-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2013-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2013-12-31	$2,068,989
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2013-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2013-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2013-12-31	$0
Assets. Loans (other than to participants) at end of year	2013-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2013-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2013-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2013-12-31	$0
Other income not declared elsewhere	2013-12-31	$0
Administrative expenses (other) incurred	2013-12-31	$-50,021
Liabilities. Value of operating payables at end of year	2013-12-31	$0
Liabilities. Value of operating payables at beginning of year	2013-12-31	$0
Total non interest bearing cash at end of year	2013-12-31	$0
Total non interest bearing cash at beginning of year	2013-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2013-12-31	No
Income. Non cash contributions	2013-12-31	$0
Value of net income/loss	2013-12-31	$99,165,975
Value of net assets at end of year (total assets less liabilities)	2013-12-31	$520,383,422
Value of net assets at beginning of year (total assets less liabilities)	2013-12-31	$421,217,447
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2013-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2013-12-31	No
Were any leases to which the plan was party in default or uncollectible	2013-12-31	No
Assets. partnership/joint venture interests at end of year	2013-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2013-12-31	$0
Investment advisory and management fees	2013-12-31	$58,748
Value of interest in registered invesment companies (eg mutual funds) at end of year	2013-12-31	$376,579,663
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2013-12-31	$274,502,584
Value of interest in pooled separate accounts at end of year	2013-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2013-12-31	$0
Interest on participant loans	2013-12-31	$593,046
Income. Interest from loans (other than to participants)	2013-12-31	$0
Interest earned on other investments	2013-12-31	$0
Income. Interest from US Government securities	2013-12-31	$0
Income. Interest from corporate debt instruments	2013-12-31	$0
Value of interest in master investment trust accounts at end of year	2013-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2013-12-31	$0
Value of interest in common/collective trusts at end of year	2013-12-31	$100,754,736
Value of interest in common/collective trusts at beginning of year	2013-12-31	$105,200,155
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2013-12-31	$5,882,016
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2013-12-31	$4,653,214
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2013-12-31	$4,653,214
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2013-12-31	$0
Assets. Value of investments in 103.12 investment entities at end of year	2013-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2013-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2013-12-31	$0
Asset value of US Government securities at end of year	2013-12-31	$0
Asset value of US Government securities at beginning of year	2013-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2013-12-31	$59,994,780
Net investment gain/loss from pooled separate accounts	2013-12-31	$0
Net investment gain or loss from common/collective trusts	2013-12-31	$-347,661
Net gain/loss from 103.12 investment entities	2013-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2013-12-31	No
Was there a failure to transmit to the plan any participant contributions	2013-12-31	No
Has the plan failed to provide any benefit when due under the plan	2013-12-31	No
Assets. Invements in employer securities at end of year	2013-12-31	$17,985,343
Assets. Invements in employer securities at beginning of year	2013-12-31	$18,935,425
Assets. Value of employer real property at end of year	2013-12-31	$0
Assets. Value of employer real property at beginning of year	2013-12-31	$0
Contributions received in cash from employer	2013-12-31	$30,180,561
Employer contributions (assets) at end of year	2013-12-31	$4,161,452
Employer contributions (assets) at beginning of year	2013-12-31	$3,395,558
Income. Dividends from preferred stock	2013-12-31	$0
Income. Dividends from common stock	2013-12-31	$997,729
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2013-12-31	$29,741,680
Asset. Corporate debt instrument preferred debt at end of year	2013-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2013-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2013-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2013-12-31	$0
Contract administrator fees	2013-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2013-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2013-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2013-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2013-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2013-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2013-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2013-12-31	$0
Did the plan have assets held for investment	2013-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2013-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2013-12-31	No
Aggregate proceeds on sale of assets	2013-12-31	$23,870,357
Aggregate carrying amount (costs) on sale of assets	2013-12-31	$24,068,637
Liabilities. Value of acquisition indebtedness at end of year	2013-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2013-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2013-12-31	No
Opinion of an independent qualified public accountant for this plan	2013-12-31	Unqualified
Accountancy firm name	2013-12-31	WEAVER & TIDWELL LLP
Accountancy firm EIN	2013-12-31	750786316
2012 : DIAMOND OFFSHORE 401(K) PLAN 2012 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2012-12-31	$2,705,443
Total unrealized appreciation/depreciation of assets	2012-12-31	$2,705,443
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2012-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2012-12-31	$0
Total income from all sources (including contributions)	2012-12-31	$95,611,820
Total loss/gain on sale of assets	2012-12-31	$901,885
Total of all expenses incurred	2012-12-31	$25,905,019
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2012-12-31	$25,823,849
Value of total corrective distributions	2012-12-31	$3,706
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2012-12-31	$50,840,546
Value of total assets at end of year	2012-12-31	$421,217,447
Value of total assets at beginning of year	2012-12-31	$351,510,646
Total of administrative expenses incurred including professional, contract, advisory and management fees	2012-12-31	$77,464
Total interest from all sources	2012-12-31	$583,837
Total dividends received (eg from common stock, registered investment company shares)	2012-12-31	$9,539,760
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2012-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2012-12-31	$8,608,469
Was this plan covered by a fidelity bond	2012-12-31	Yes
Value of fidelity bond cover	2012-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2012-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2012-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2012-12-31	No
Contributions received from participants	2012-12-31	$23,448,431
Participant contributions at end of year	2012-12-31	$14,253,428
Participant contributions at beginning of year	2012-12-31	$13,210,583
Participant contributions at end of year	2012-12-31	$277,083
Participant contributions at beginning of year	2012-12-31	$527,446
Income. Received or receivable in cash from other sources (including rollovers)	2012-12-31	$1,264,091
Administrative expenses (other) incurred	2012-12-31	$77,464
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2012-12-31	No
Value of net income/loss	2012-12-31	$69,706,801
Value of net assets at end of year (total assets less liabilities)	2012-12-31	$421,217,447
Value of net assets at beginning of year (total assets less liabilities)	2012-12-31	$351,510,646
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2012-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2012-12-31	No
Were any leases to which the plan was party in default or uncollectible	2012-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2012-12-31	$274,502,584
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2012-12-31	$221,397,991
Interest on participant loans	2012-12-31	$583,837
Value of interest in common/collective trusts at end of year	2012-12-31	$105,200,155
Value of interest in common/collective trusts at beginning of year	2012-12-31	$93,946,178
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2012-12-31	$4,653,214
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2012-12-31	$3,484,397
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2012-12-31	$3,484,397
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2012-12-31	$29,178,238
Net investment gain or loss from common/collective trusts	2012-12-31	$1,862,111
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2012-12-31	No
Was there a failure to transmit to the plan any participant contributions	2012-12-31	No
Has the plan failed to provide any benefit when due under the plan	2012-12-31	No
Assets. Invements in employer securities at end of year	2012-12-31	$18,935,425
Assets. Invements in employer securities at beginning of year	2012-12-31	$15,796,917
Contributions received in cash from employer	2012-12-31	$26,128,024
Employer contributions (assets) at end of year	2012-12-31	$3,395,558
Employer contributions (assets) at beginning of year	2012-12-31	$3,147,134
Income. Dividends from common stock	2012-12-31	$931,291
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2012-12-31	$25,823,849
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2012-12-31	No
Did the plan have assets held for investment	2012-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2012-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2012-12-31	No
Aggregate proceeds on sale of assets	2012-12-31	$6,964,015
Aggregate carrying amount (costs) on sale of assets	2012-12-31	$6,062,130
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2012-12-31	No
Opinion of an independent qualified public accountant for this plan	2012-12-31	Unqualified
Accountancy firm name	2012-12-31	MCCONNELL AND JONES LLP
Accountancy firm EIN	2012-12-31	760488832
2011 : DIAMOND OFFSHORE 401(K) PLAN 2011 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2011-12-31	$-2,869,742
Total unrealized appreciation/depreciation of assets	2011-12-31	$-2,869,742
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2011-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2011-12-31	$0
Total income from all sources (including contributions)	2011-12-31	$39,585,019
Total loss/gain on sale of assets	2011-12-31	$-99,673
Total of all expenses incurred	2011-12-31	$34,723,053
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2011-12-31	$34,649,679
Value of total corrective distributions	2011-12-31	$7,083
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2011-12-31	$44,497,959
Value of total assets at end of year	2011-12-31	$351,510,646
Value of total assets at beginning of year	2011-12-31	$346,648,680
Total of administrative expenses incurred including professional, contract, advisory and management fees	2011-12-31	$66,291
Total interest from all sources	2011-12-31	$595,241
Total dividends received (eg from common stock, registered investment company shares)	2011-12-31	$7,086,753
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2011-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2011-12-31	$6,204,214
Was this plan covered by a fidelity bond	2011-12-31	Yes
Value of fidelity bond cover	2011-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2011-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2011-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2011-12-31	No
Contributions received from participants	2011-12-31	$21,329,629
Participant contributions at end of year	2011-12-31	$13,210,583
Participant contributions at beginning of year	2011-12-31	$12,870,250
Participant contributions at end of year	2011-12-31	$527,446
Participant contributions at beginning of year	2011-12-31	$371,861
Income. Received or receivable in cash from other sources (including rollovers)	2011-12-31	$551,998
Administrative expenses (other) incurred	2011-12-31	$66,291
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2011-12-31	No
Value of net income/loss	2011-12-31	$4,861,966
Value of net assets at end of year (total assets less liabilities)	2011-12-31	$351,510,646
Value of net assets at beginning of year (total assets less liabilities)	2011-12-31	$346,648,680
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2011-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2011-12-31	No
Were any leases to which the plan was party in default or uncollectible	2011-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2011-12-31	$221,397,991
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2011-12-31	$228,745,564
Interest on participant loans	2011-12-31	$595,241
Value of interest in common/collective trusts at end of year	2011-12-31	$93,946,178
Value of interest in common/collective trusts at beginning of year	2011-12-31	$84,197,950
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2011-12-31	$3,484,397
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2011-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2011-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2011-12-31	$-12,335,403
Net investment gain or loss from common/collective trusts	2011-12-31	$2,709,884
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2011-12-31	No
Was there a failure to transmit to the plan any participant contributions	2011-12-31	No
Has the plan failed to provide any benefit when due under the plan	2011-12-31	No
Assets. Invements in employer securities at end of year	2011-12-31	$15,796,917
Assets. Invements in employer securities at beginning of year	2011-12-31	$17,851,440
Contributions received in cash from employer	2011-12-31	$22,616,332
Employer contributions (assets) at end of year	2011-12-31	$3,147,134
Employer contributions (assets) at beginning of year	2011-12-31	$2,611,615
Income. Dividends from common stock	2011-12-31	$882,539
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2011-12-31	$34,649,679
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2011-12-31	No
Did the plan have assets held for investment	2011-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2011-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2011-12-31	No
Aggregate proceeds on sale of assets	2011-12-31	$5,442,306
Aggregate carrying amount (costs) on sale of assets	2011-12-31	$5,541,979
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2011-12-31	No
Opinion of an independent qualified public accountant for this plan	2011-12-31	Unqualified
Accountancy firm name	2011-12-31	MCCONNELL AND JONES LLP
Accountancy firm EIN	2011-12-31	760488832
2010 : DIAMOND OFFSHORE 401(K) PLAN 2010 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2010-12-31	$-5,322,517
Total unrealized appreciation/depreciation of assets	2010-12-31	$-5,322,517
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2010-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2010-12-31	$0
Total income from all sources (including contributions)	2010-12-31	$74,896,092
Total loss/gain on sale of assets	2010-12-31	$-1,068,055
Total of all expenses incurred	2010-12-31	$29,922,983
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2010-12-31	$29,849,526
Expenses. Certain deemed distributions of participant loans	2010-12-31	$-1,114
Value of total corrective distributions	2010-12-31	$1,373
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2010-12-31	$45,920,706
Value of total assets at end of year	2010-12-31	$346,648,680
Value of total assets at beginning of year	2010-12-31	$301,675,571
Total of administrative expenses incurred including professional, contract, advisory and management fees	2010-12-31	$73,198
Total interest from all sources	2010-12-31	$686,741
Total dividends received (eg from common stock, registered investment company shares)	2010-12-31	$5,600,569
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2010-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2010-12-31	$4,459,023
Was this plan covered by a fidelity bond	2010-12-31	Yes
Value of fidelity bond cover	2010-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2010-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2010-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2010-12-31	No
Contributions received from participants	2010-12-31	$21,605,735
Participant contributions at end of year	2010-12-31	$12,870,250
Participant contributions at beginning of year	2010-12-31	$12,428,083
Participant contributions at end of year	2010-12-31	$371,861
Participant contributions at beginning of year	2010-12-31	$411,728
Income. Received or receivable in cash from other sources (including rollovers)	2010-12-31	$371,217
Administrative expenses (other) incurred	2010-12-31	$73,198
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2010-12-31	No
Value of net income/loss	2010-12-31	$44,973,109
Value of net assets at end of year (total assets less liabilities)	2010-12-31	$346,648,680
Value of net assets at beginning of year (total assets less liabilities)	2010-12-31	$301,675,571
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2010-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2010-12-31	No
Were any leases to which the plan was party in default or uncollectible	2010-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2010-12-31	$228,745,564
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2010-12-31	$186,251,409
Interest on participant loans	2010-12-31	$686,741
Value of interest in common/collective trusts at end of year	2010-12-31	$84,197,950
Value of interest in common/collective trusts at beginning of year	2010-12-31	$80,176,357
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2010-12-31	$25,939,559
Net investment gain or loss from common/collective trusts	2010-12-31	$3,139,089
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2010-12-31	No
Was there a failure to transmit to the plan any participant contributions	2010-12-31	No
Has the plan failed to provide any benefit when due under the plan	2010-12-31	No
Assets. Invements in employer securities at end of year	2010-12-31	$17,851,440
Assets. Invements in employer securities at beginning of year	2010-12-31	$19,431,768
Contributions received in cash from employer	2010-12-31	$23,943,754
Employer contributions (assets) at end of year	2010-12-31	$2,611,615
Employer contributions (assets) at beginning of year	2010-12-31	$2,976,226
Income. Dividends from common stock	2010-12-31	$1,141,546
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2010-12-31	$29,849,526
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2010-12-31	No
Did the plan have assets held for investment	2010-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2010-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2010-12-31	No
Aggregate proceeds on sale of assets	2010-12-31	$3,852,258
Aggregate carrying amount (costs) on sale of assets	2010-12-31	$4,920,313
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2010-12-31	No
Opinion of an independent qualified public accountant for this plan	2010-12-31	Unqualified
Accountancy firm name	2010-12-31	MCCONNELL & JONES, LLP
Accountancy firm EIN	2010-12-31	760488832
2009 : DIAMOND OFFSHORE 401(K) PLAN 2009 401k financial data
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2009-12-31	$0

Form 5500 Responses for DIAMOND OFFSHORE 401(K) PLAN

2022: DIAMOND OFFSHORE 401(K) PLAN 2022 form 5500 responses
2022-01-01	Type of plan entity	Single employer plan
2022-01-01	Submission has been amended	No
2022-01-01	This submission is the final filing	No
2022-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2022-01-01	Plan is a collectively bargained plan	No
2022-01-01	Plan funding arrangement – Trust	Yes
2022-01-01	Plan benefit arrangement - Trust	Yes
2021: DIAMOND OFFSHORE 401(K) PLAN 2021 form 5500 responses
2021-01-01	Type of plan entity	Single employer plan
2021-01-01	This submission is the final filing	No
2021-01-01	Plan is a collectively bargained plan	No
2021-01-01	Plan funding arrangement – Trust	Yes
2021-01-01	Plan benefit arrangement - Trust	Yes
2020: DIAMOND OFFSHORE 401(K) PLAN 2020 form 5500 responses
2020-01-01	Type of plan entity	Single employer plan
2020-01-01	Submission has been amended	Yes
2020-01-01	This submission is the final filing	No
2020-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2020-01-01	Plan is a collectively bargained plan	No
2020-01-01	Plan funding arrangement – Trust	Yes
2020-01-01	Plan benefit arrangement - Trust	Yes
2019: DIAMOND OFFSHORE 401(K) PLAN 2019 form 5500 responses
2019-01-01	Type of plan entity	Single employer plan
2019-01-01	Submission has been amended	No
2019-01-01	This submission is the final filing	No
2019-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2019-01-01	Plan is a collectively bargained plan	No
2019-01-01	Plan funding arrangement – Trust	Yes
2019-01-01	Plan benefit arrangement - Trust	Yes
2018: DIAMOND OFFSHORE 401(K) PLAN 2018 form 5500 responses
2018-01-01	Type of plan entity	Single employer plan
2018-01-01	Submission has been amended	No
2018-01-01	This submission is the final filing	No
2018-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2018-01-01	Plan is a collectively bargained plan	No
2018-01-01	Plan funding arrangement – Trust	Yes
2018-01-01	Plan benefit arrangement - Trust	Yes
2017: DIAMOND OFFSHORE 401(K) PLAN 2017 form 5500 responses
2017-01-01	Type of plan entity	Single employer plan
2017-01-01	Submission has been amended	No
2017-01-01	This submission is the final filing	No
2017-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2017-01-01	Plan is a collectively bargained plan	No
2017-01-01	Plan funding arrangement – Trust	Yes
2017-01-01	Plan benefit arrangement - Trust	Yes
2016: DIAMOND OFFSHORE 401(K) PLAN 2016 form 5500 responses
2016-01-01	Type of plan entity	Single employer plan
2016-01-01	Submission has been amended	No
2016-01-01	This submission is the final filing	No
2016-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2016-01-01	Plan is a collectively bargained plan	No
2016-01-01	Plan funding arrangement – Trust	Yes
2016-01-01	Plan benefit arrangement - Trust	Yes
2015: DIAMOND OFFSHORE 401(K) PLAN 2015 form 5500 responses
2015-01-01	Type of plan entity	Single employer plan
2015-01-01	Submission has been amended	No
2015-01-01	This submission is the final filing	No
2015-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2015-01-01	Plan is a collectively bargained plan	No
2015-01-01	Plan funding arrangement – Trust	Yes
2015-01-01	Plan benefit arrangement - Trust	Yes
2014: DIAMOND OFFSHORE 401(K) PLAN 2014 form 5500 responses
2014-01-01	Type of plan entity	Single employer plan
2014-01-01	Submission has been amended	No
2014-01-01	This submission is the final filing	No
2014-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2014-01-01	Plan is a collectively bargained plan	No
2014-01-01	Plan funding arrangement – Trust	Yes
2014-01-01	Plan benefit arrangement - Trust	Yes
2013: DIAMOND OFFSHORE 401(K) PLAN 2013 form 5500 responses
2013-01-01	Type of plan entity	Single employer plan
2013-01-01	Submission has been amended	No
2013-01-01	This submission is the final filing	No
2013-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2013-01-01	Plan is a collectively bargained plan	No
2013-01-01	Plan funding arrangement – Trust	Yes
2013-01-01	Plan benefit arrangement - Trust	Yes
2012: DIAMOND OFFSHORE 401(K) PLAN 2012 form 5500 responses
2012-01-01	Type of plan entity	Single employer plan
2012-01-01	Submission has been amended	No
2012-01-01	This submission is the final filing	No
2012-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2012-01-01	Plan funding arrangement – Trust	Yes
2012-01-01	Plan benefit arrangement - Trust	Yes
2011: DIAMOND OFFSHORE 401(K) PLAN 2011 form 5500 responses
2011-01-01	Type of plan entity	Single employer plan
2011-01-01	Submission has been amended	No
2011-01-01	This submission is the final filing	No
2011-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2011-01-01	Plan funding arrangement – Trust	Yes
2011-01-01	Plan benefit arrangement - Trust	Yes
2009: DIAMOND OFFSHORE 401(K) PLAN 2009 form 5500 responses
2009-01-01	Type of plan entity	Single employer plan
2009-01-01	Submission has been amended	No
2009-01-01	This submission is the final filing	No
2009-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2009-01-01	Plan funding arrangement – Trust	Yes
2009-01-01	Plan benefit arrangement - Trust	Yes

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Company Name:	DIAMOND OFFSHORE MANAGEMENT COMPANY
Employer identification number (EIN):	133560049
NAIC Classification:	211120
NAIC Description:	Crude Petroleum Extraction

Jurisdiction of Incorporation:	State of Delaware Division of Corporations
Incorporation Date:
Company Identification Number:	2220561