Diamond Offshore Inc.
Plan context: Diamond Offshore 401K Plan
EIN 13-3560049 • Houston, TX • 64 filings • 12 plans
Current Snapshot
Latest Year
2024
2024 Participants
1,237
2024 Assets
$377,430,996
2024 Contributions
$20,593,096
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2024 | 2 | 1,237 | $377,430,996 | $20,593,096 | $16,648iApproximate average salary by contribution assumption: employee only about $416,190 at 4% or $277,460 at 6%; with 50% employer match about $277,460 at 4% or $184,973 at 6%; with 100% employer match about $208,095 at 4% or $138,730 at 6%. |
| Diamond Offshore 401K Plan | - | 948 | $377,430,996 | $20,593,096 | $21,723iApproximate average salary by contribution assumption: employee only about $543,067 at 4% or $362,045 at 6%; with 50% employer match about $362,045 at 4% or $241,363 at 6%; with 100% employer match about $271,533 at 4% or $181,022 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,237 | - | - | - |
| 2023 | 2 | 1,272 | $355,796,435 | $19,342,058 | $15,206iApproximate average salary by contribution assumption: employee only about $380,151 at 4% or $253,434 at 6%; with 50% employer match about $253,434 at 4% or $168,956 at 6%; with 100% employer match about $190,075 at 4% or $126,717 at 6%. |
| Diamond Offshore 401K Plan | - | 1,272 | $355,796,435 | $19,342,058 | $15,206iApproximate average salary by contribution assumption: employee only about $380,151 at 4% or $253,434 at 6%; with 50% employer match about $253,434 at 4% or $168,956 at 6%; with 100% employer match about $190,075 at 4% or $126,717 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,249 | - | - | - |
| 2022 | 2 | 1,210 | $319,390,915 | $17,367,413 | $14,353iApproximate average salary by contribution assumption: employee only about $358,831 at 4% or $239,221 at 6%; with 50% employer match about $239,221 at 4% or $159,480 at 6%; with 100% employer match about $179,415 at 4% or $119,610 at 6%. |
| Diamond Offshore 401K Plan | - | 1,183 | $319,390,915 | $17,367,413 | $14,681iApproximate average salary by contribution assumption: employee only about $367,021 at 4% or $244,680 at 6%; with 50% employer match about $244,680 at 4% or $163,120 at 6%; with 100% employer match about $183,510 at 4% or $122,340 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,210 | - | - | - |
| 2021 | 2 | 1,079 | $420,727,118 | $10,971,960 | $10,169iApproximate average salary by contribution assumption: employee only about $254,216 at 4% or $169,477 at 6%; with 50% employer match about $169,477 at 4% or $112,985 at 6%; with 100% employer match about $127,108 at 4% or $84,739 at 6%. |
| Diamond Offshore 401K Plan | - | 1,043 | $420,727,118 | $10,971,960 | $10,520iApproximate average salary by contribution assumption: employee only about $262,990 at 4% or $175,327 at 6%; with 50% employer match about $175,327 at 4% or $116,885 at 6%; with 100% employer match about $131,495 at 4% or $87,663 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,079 | - | - | - |
| 2020 | 2 | 1,350 | $418,283,032 | $19,875,174 | $14,722iApproximate average salary by contribution assumption: employee only about $368,059 at 4% or $245,373 at 6%; with 50% employer match about $245,373 at 4% or $163,582 at 6%; with 100% employer match about $184,029 at 4% or $122,686 at 6%. |
| Diamond Offshore 401K Plan | - | 986 | $418,283,032 | $19,875,174 | $20,157iApproximate average salary by contribution assumption: employee only about $503,934 at 4% or $335,956 at 6%; with 50% employer match about $335,956 at 4% or $223,971 at 6%; with 100% employer match about $251,967 at 4% or $167,978 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,350 | - | - | - |
| 2019 | 2 | 1,316 | $474,700,871 | $23,718,457 | $18,023iApproximate average salary by contribution assumption: employee only about $450,579 at 4% or $300,386 at 6%; with 50% employer match about $300,386 at 4% or $200,257 at 6%; with 100% employer match about $225,289 at 4% or $150,193 at 6%. |
| Diamond Offshore 401K Plan | - | 1,301 | $474,700,871 | $23,718,457 | $18,231iApproximate average salary by contribution assumption: employee only about $455,774 at 4% or $303,849 at 6%; with 50% employer match about $303,849 at 4% or $202,566 at 6%; with 100% employer match about $227,887 at 4% or $151,925 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,316 | - | - | - |
| 2018 | 2 | 1,267 | $405,263,497 | $22,714,604 | $17,928iApproximate average salary by contribution assumption: employee only about $448,197 at 4% or $298,798 at 6%; with 50% employer match about $298,798 at 4% or $199,198 at 6%; with 100% employer match about $224,098 at 4% or $149,399 at 6%. |
| Diamond Offshore 401K Plan | - | 1,267 | $405,263,497 | $22,714,604 | $17,928iApproximate average salary by contribution assumption: employee only about $448,197 at 4% or $298,798 at 6%; with 50% employer match about $298,798 at 4% or $199,198 at 6%; with 100% employer match about $224,098 at 4% or $149,399 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,095 | - | - | - |
| 2017 | 2 | 1,425 | $476,582,670 | $26,087,410 | $18,307iApproximate average salary by contribution assumption: employee only about $457,674 at 4% or $305,116 at 6%; with 50% employer match about $305,116 at 4% or $203,411 at 6%; with 100% employer match about $228,837 at 4% or $152,558 at 6%. |
| Diamond Offshore 401K Plan | - | 1,401 | $476,582,670 | $26,087,410 | $18,621iApproximate average salary by contribution assumption: employee only about $465,514 at 4% or $310,343 at 6%; with 50% employer match about $310,343 at 4% or $206,895 at 6%; with 100% employer match about $232,757 at 4% or $155,171 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,425 | - | - | - |
| 2016 | 2 | 2,010 | $439,991,287 | $31,387,255 | $15,616iApproximate average salary by contribution assumption: employee only about $390,389 at 4% or $260,259 at 6%; with 50% employer match about $260,259 at 4% or $173,506 at 6%; with 100% employer match about $195,194 at 4% or $130,130 at 6%. |
| Diamond Offshore 401K Plan | - | 2,010 | $439,991,287 | $31,387,255 | $15,616iApproximate average salary by contribution assumption: employee only about $390,389 at 4% or $260,259 at 6%; with 50% employer match about $260,259 at 4% or $173,506 at 6%; with 100% employer match about $195,194 at 4% or $130,130 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,552 | - | - | - |
| 2015 | 2 | 2,495 | $490,373,407 | $51,864,750 | $20,787iApproximate average salary by contribution assumption: employee only about $519,687 at 4% or $346,458 at 6%; with 50% employer match about $346,458 at 4% or $230,972 at 6%; with 100% employer match about $259,843 at 4% or $173,229 at 6%. |
| Diamond Offshore 401K Plan | - | 2,495 | $490,373,407 | $51,864,750 | $20,787iApproximate average salary by contribution assumption: employee only about $519,687 at 4% or $346,458 at 6%; with 50% employer match about $346,458 at 4% or $230,972 at 6%; with 100% employer match about $259,843 at 4% or $173,229 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,894 | - | - | - |
| 2014 | 2 | 2,652 | $570,817,179 | $66,664,025 | $25,137iApproximate average salary by contribution assumption: employee only about $628,432 at 4% or $418,954 at 6%; with 50% employer match about $418,954 at 4% or $279,303 at 6%; with 100% employer match about $314,216 at 4% or $209,477 at 6%. |
| Diamond Offshore 401K Plan | - | 2,652 | $570,817,179 | $66,664,025 | $25,137iApproximate average salary by contribution assumption: employee only about $628,432 at 4% or $418,954 at 6%; with 50% employer match about $418,954 at 4% or $279,303 at 6%; with 100% employer match about $314,216 at 4% or $209,477 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,416 | - | - | - |
| 2013 | 2 | 2,584 | $520,383,422 | $58,757,507 | $22,739iApproximate average salary by contribution assumption: employee only about $568,474 at 4% or $378,983 at 6%; with 50% employer match about $378,983 at 4% or $252,655 at 6%; with 100% employer match about $284,237 at 4% or $189,491 at 6%. |
| Diamond Offshore 401K Plan | - | 2,584 | $520,383,422 | $58,757,507 | $22,739iApproximate average salary by contribution assumption: employee only about $568,474 at 4% or $378,983 at 6%; with 50% employer match about $378,983 at 4% or $252,655 at 6%; with 100% employer match about $284,237 at 4% or $189,491 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,385 | - | - | - |
| 2012 | 2 | 2,120 | $421,217,447 | $50,840,546 | $23,981iApproximate average salary by contribution assumption: employee only about $599,535 at 4% or $399,690 at 6%; with 50% employer match about $399,690 at 4% or $266,460 at 6%; with 100% employer match about $299,767 at 4% or $199,845 at 6%. |
| Diamond Offshore 401K Plan | - | 2,120 | $421,217,447 | $50,840,546 | $23,981iApproximate average salary by contribution assumption: employee only about $599,535 at 4% or $399,690 at 6%; with 50% employer match about $399,690 at 4% or $266,460 at 6%; with 100% employer match about $299,767 at 4% or $199,845 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,086 | - | - | - |
| 2011 | 2 | 2,066 | $351,510,646 | $44,497,959 | $21,538iApproximate average salary by contribution assumption: employee only about $538,455 at 4% or $358,970 at 6%; with 50% employer match about $358,970 at 4% or $239,314 at 6%; with 100% employer match about $269,228 at 4% or $179,485 at 6%. |
| Diamond Offshore 401K Plan | - | 2,054 | $351,510,646 | $44,497,959 | $21,664iApproximate average salary by contribution assumption: employee only about $541,601 at 4% or $361,068 at 6%; with 50% employer match about $361,068 at 4% or $240,712 at 6%; with 100% employer match about $270,801 at 4% or $180,534 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,066 | - | - | - |
| 2010 | 2 | 2,112 | $346,648,680 | $45,920,706 | $21,743iApproximate average salary by contribution assumption: employee only about $543,569 at 4% or $362,379 at 6%; with 50% employer match about $362,379 at 4% or $241,586 at 6%; with 100% employer match about $271,784 at 4% or $181,190 at 6%. |
| Diamond Offshore 401K Plan | - | 2,112 | $346,648,680 | $45,920,706 | $21,743iApproximate average salary by contribution assumption: employee only about $543,569 at 4% or $362,379 at 6%; with 50% employer match about $362,379 at 4% or $241,586 at 6%; with 100% employer match about $271,784 at 4% or $181,190 at 6%. |
| Diamond Offshore Health Care Plan | - | 1,904 | - | - | - |
| 2009 | 2 | 2,643 | $301,675,571 | $47,190,967 | $17,855iApproximate average salary by contribution assumption: employee only about $446,377 at 4% or $297,585 at 6%; with 50% employer match about $297,585 at 4% or $198,390 at 6%; with 100% employer match about $223,188 at 4% or $148,792 at 6%. |
| Diamond Offshore 401K Plan | - | 2,643 | $301,675,571 | $47,190,967 | $17,855iApproximate average salary by contribution assumption: employee only about $446,377 at 4% or $297,585 at 6%; with 50% employer match about $297,585 at 4% or $198,390 at 6%; with 100% employer match about $223,188 at 4% or $148,792 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,529 | - | - | - |
| 2008 | 2 | 2,735 | $215,822,430 | $44,140,419 | $16,139iApproximate average salary by contribution assumption: employee only about $403,477 at 4% or $268,985 at 6%; with 50% employer match about $268,985 at 4% or $179,323 at 6%; with 100% employer match about $201,739 at 4% or $134,492 at 6%. |
| Diamond Offshore 401K Plan | - | 2,725 | $215,822,430 | $44,140,419 | $16,198iApproximate average salary by contribution assumption: employee only about $404,958 at 4% or $269,972 at 6%; with 50% employer match about $269,972 at 4% or $179,981 at 6%; with 100% employer match about $202,479 at 4% or $134,986 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,735 | - | - | - |
| 2007 | 2 | 2,801 | $256,305,220 | $39,813,815 | $14,214iApproximate average salary by contribution assumption: employee only about $355,354 at 4% or $236,902 at 6%; with 50% employer match about $236,902 at 4% or $157,935 at 6%; with 100% employer match about $177,677 at 4% or $118,451 at 6%. |
| Diamond Offshore 401K Plan | - | 2,801 | $256,305,220 | $39,813,815 | $14,214iApproximate average salary by contribution assumption: employee only about $355,354 at 4% or $236,902 at 6%; with 50% employer match about $236,902 at 4% or $157,935 at 6%; with 100% employer match about $177,677 at 4% or $118,451 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,799 | - | - | - |
| 2006 | 3 | 2,703 | $207,764,871 | $23,619,650 | $8,738iApproximate average salary by contribution assumption: employee only about $218,458 at 4% or $145,638 at 6%; with 50% employer match about $145,638 at 4% or $97,092 at 6%; with 100% employer match about $109,229 at 4% or $72,819 at 6%. |
| Diamond Offshore 401K Plan | - | 2,683 | $207,764,871 | $23,537,435 | $8,773iApproximate average salary by contribution assumption: employee only about $219,320 at 4% or $146,213 at 6%; with 50% employer match about $146,213 at 4% or $97,476 at 6%; with 100% employer match about $109,660 at 4% or $73,107 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,703 | - | - | - |
| ARETHUSA OFF-SHORE COMPANY PENSION PLAN | - | 0 | - | $82,215 | - |
| 2005 | 3 | 2,620 | $197,805,529 | $19,128,462 | $7,301iApproximate average salary by contribution assumption: employee only about $182,523 at 4% or $121,682 at 6%; with 50% employer match about $121,682 at 4% or $81,122 at 6%; with 100% employer match about $91,262 at 4% or $60,841 at 6%. |
| Diamond Offshore 401K Plan | - | 2,218 | $176,624,660 | $18,833,729 | $8,491iApproximate average salary by contribution assumption: employee only about $212,283 at 4% or $141,522 at 6%; with 50% employer match about $141,522 at 4% or $94,348 at 6%; with 100% employer match about $106,141 at 4% or $70,761 at 6%. |
| ARETHUSA OFF-SHORE COMPANY PENSION PLAN | - | 203 | $21,180,869 | $294,733 | $1,452iApproximate average salary by contribution assumption: employee only about $36,297 at 4% or $24,198 at 6%; with 50% employer match about $24,198 at 4% or $16,132 at 6%; with 100% employer match about $18,149 at 4% or $12,099 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,620 | - | - | - |
| 2004 | 3 | 2,378 | $172,095,366 | $17,442,611 | $7,335iApproximate average salary by contribution assumption: employee only about $183,375 at 4% or $122,250 at 6%; with 50% employer match about $122,250 at 4% or $81,500 at 6%; with 100% employer match about $91,687 at 4% or $61,125 at 6%. |
| Diamond Offshore 401K Plan | - | 2,131 | $152,311,023 | $17,242,611 | $8,091iApproximate average salary by contribution assumption: employee only about $202,283 at 4% or $134,855 at 6%; with 50% employer match about $134,855 at 4% or $89,904 at 6%; with 100% employer match about $101,142 at 4% or $67,428 at 6%. |
| ARETHUSA OFF-SHORE COMPANY PENSION PLAN | - | 212 | $19,784,343 | $200,000 | $943iApproximate average salary by contribution assumption: employee only about $23,585 at 4% or $15,723 at 6%; with 50% employer match about $15,723 at 4% or $10,482 at 6%; with 100% employer match about $11,792 at 4% or $7,862 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,378 | - | - | - |
| 2003 | 3 | 2,273 | $146,237,880 | $17,094,083 | $7,520iApproximate average salary by contribution assumption: employee only about $188,012 at 4% or $125,342 at 6%; with 50% employer match about $125,342 at 4% or $83,561 at 6%; with 100% employer match about $94,006 at 4% or $62,671 at 6%. |
| Diamond Offshore 401K Plan | - | 2,246 | $128,419,924 | $16,894,083 | $7,522iApproximate average salary by contribution assumption: employee only about $188,046 at 4% or $125,364 at 6%; with 50% employer match about $125,364 at 4% or $83,576 at 6%; with 100% employer match about $94,023 at 4% or $62,682 at 6%. |
| ARETHUSA OFF-SHORE COMPANY PENSION PLAN | - | 224 | $17,817,956 | $200,000 | $893iApproximate average salary by contribution assumption: employee only about $22,321 at 4% or $14,881 at 6%; with 50% employer match about $14,881 at 4% or $9,921 at 6%; with 100% employer match about $11,161 at 4% or $7,440 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,273 | - | - | - |
| 2002 | 3 | 2,462 | $99,340,420 | $17,247,695 | $7,006iApproximate average salary by contribution assumption: employee only about $175,139 at 4% or $116,759 at 6%; with 50% employer match about $116,759 at 4% or $77,840 at 6%; with 100% employer match about $87,570 at 4% or $58,380 at 6%. |
| Diamond Offshore 401K Plan | - | 2,406 | $99,340,420 | $17,247,695 | $7,169iApproximate average salary by contribution assumption: employee only about $179,215 at 4% or $119,477 at 6%; with 50% employer match about $119,477 at 4% or $79,651 at 6%; with 100% employer match about $89,608 at 4% or $59,738 at 6%. |
| ARETHUSA OFF-SHORE COMPANY PENSION PLAN | - | 234 | - | - | - |
| Diamond Offshore Health Care Plan | - | 2,462 | - | - | - |
| 2001 | 3 | 2,595 | $98,234,587 | $16,869,981 | $6,501iApproximate average salary by contribution assumption: employee only about $162,524 at 4% or $108,349 at 6%; with 50% employer match about $108,349 at 4% or $72,233 at 6%; with 100% employer match about $81,262 at 4% or $54,175 at 6%. |
| Diamond Offshore 401K Plan | - | 2,424 | $98,234,587 | $16,869,981 | $6,960iApproximate average salary by contribution assumption: employee only about $173,989 at 4% or $115,993 at 6%; with 50% employer match about $115,993 at 4% or $77,328 at 6%; with 100% employer match about $86,995 at 4% or $57,996 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,595 | - | - | - |
| ARETHUSA OFF-SHORE COMPANY PENSION PLAN | - | 252 | - | - | - |
| 2000 | 3 | 2,712 | $98,504,475 | $15,372,205 | $5,668iApproximate average salary by contribution assumption: employee only about $141,705 at 4% or $94,470 at 6%; with 50% employer match about $94,470 at 4% or $62,980 at 6%; with 100% employer match about $70,853 at 4% or $47,235 at 6%. |
| Diamond Offshore 401K Plan | - | 2,265 | $98,504,475 | $15,372,205 | $6,787iApproximate average salary by contribution assumption: employee only about $169,671 at 4% or $113,114 at 6%; with 50% employer match about $113,114 at 4% or $75,409 at 6%; with 100% employer match about $84,836 at 4% or $56,557 at 6%. |
| Diamond Offshore Health Care Plan | - | 2,712 | - | - | - |
| ARETHUSA OFF-SHORE COMPANY PENSION PLAN | - | 263 | - | - | - |
| 1999 | 7 | 2,485 | $96,779,650 | $15,323,060 | $6,166iApproximate average salary by contribution assumption: employee only about $154,156 at 4% or $102,770 at 6%; with 50% employer match about $102,770 at 4% or $68,514 at 6%; with 100% employer match about $77,078 at 4% or $51,385 at 6%. |
| Diamond Offshore 401K Plan | - | 2,363 | $96,779,650 | $15,323,060 | $6,485iApproximate average salary by contribution assumption: employee only about $162,114 at 4% or $108,076 at 6%; with 50% employer match about $108,076 at 4% or $72,051 at 6%; with 100% employer match about $81,057 at 4% or $54,038 at 6%. |
| Diamond Offshore Vision Services Plan | - | 0 | - | - | - |
| Diamond Offshore Health Care Plan | - | 2,485 | - | - | - |
| Diamond Offshore Hourly Short Term Disability Plan | - | 0 | - | - | - |
| Diamond Offshore Long Term Disability Plan | - | 0 | - | - | - |
| Diamond Offshore Optional Life Plan | - | 0 | - | - | - |
| Diamond Offshore Voluntary Accidental Death or Dismemebrment Plan | - | 0 | - | - | - |