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SUPPLEMENTAL OIL AND GAS DISCLOSURES (Unaudited) - Oil and Gas Reserve Information (Details) MBoe in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 MBoe MMcf MBbls | Dec. 31, 2022 MBoe MBbls MMcf | Dec. 31, 2021 MBoe MBbls MMcf | Dec. 31, 2020 MBoe MBbls MMcf
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 735,859 | 801,315 | 827,772 | 797,843
Proved undeveloped reserves | 71,621 | 88,454 | 85,190 | 75,840
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 889,769 | 912,962 | 873,683 |
Extensions, discoveries and other additions | 112,249 | 33,805 | 101,619 |
Purchases of minerals in-place | 64 | 39,110 | 457 |
Revisions of previous estimates | (45,931) | 74,523 | 107,038 |
Production | (147,840) | (144,631) | (141,642) |
Sales of minerals in-place | (831) | (26,000) | (28,193) |
Ending balance | 807,480 | 889,769 | 912,962 |
United States |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 500,354 | 530,823 | 551,384 | 532,994
Proved undeveloped reserves | 65,931 | 76,386 | 65,288 | 53,408
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 607,209 | 616,672 | 586,402 |
Extensions, discoveries and other additions | 95,677 | 21,592 | 76,871 |
Purchases of minerals in-place | 64 | 39,110 | 457 |
Revisions of previous estimates | (56,532) | 33,217 | 64,847 |
Production | (79,302) | (77,382) | (83,712) |
Sales of minerals in-place | (831) | (26,000) | (28,193) |
Ending balance | 566,285 | 607,209 | 616,672 |
EGYPT |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 165,162 | 174,633 | 184,563 | 164,870
Proved undeveloped reserves | 5,690 | 8,735 | 12,683 | 13,449
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 183,368 | 197,246 | 178,319 |
Extensions, discoveries and other additions | 15,344 | 9,278 | 21,765 |
Purchases of minerals in-place | 0 | 0 | 0 |
Revisions of previous estimates | 24,490 | 29,647 | 39,071 |
Production | (52,350) | (52,803) | (41,909) |
Sales of minerals in-place | 0 | 0 | 0 |
Ending balance | 170,852 | 183,368 | 197,246 |
North Sea |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 70,343 | 95,859 | 91,825 | 99,979
Proved undeveloped reserves | 0 | 3,333 | 7,219 | 8,983
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 99,192 | 99,044 | 108,962 |
Extensions, discoveries and other additions | 1,228 | 2,935 | 2,983 |
Purchases of minerals in-place | 0 | 0 | 0 |
Revisions of previous estimates | (13,889) | 11,659 | 3,120 |
Production | (16,188) | (14,446) | (16,021) |
Sales of minerals in-place | 0 | 0 | 0 |
Ending balance | 70,343 | 99,192 | 99,044 |
Noncontrolling Interests | EGYPT |  |  |  |
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Proved developed reserves (Energy) | MBoe | 57 | 61 | 66 | 59
Crude Oil and Condensate |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 342,923 | 368,338 | 364,687 | 389,483
Proved undeveloped reserves | 36,202 | 33,669 | 34,928 | 44,017
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 402,007 | 399,615 | 433,500 |
Extensions, discoveries and other additions | 56,893 | 19,972 | 33,547 |
Purchases of minerals in-place | 20 | 16,362 | 126 |
Revisions of previous estimates | (5,017) | 42,124 | 18,188 |
Production | (74,003) | (68,641) | (66,364) |
Sales of minerals in-place | (775) | (7,425) | (19,382) |
Ending balance | 379,125 | 402,007 | 399,615 |
Crude Oil and Condensate | United States |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 179,542 | 177,708 | 180,968 | 206,936
Proved undeveloped reserves | 30,948 | 22,239 | 18,168 | 25,516
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 199,947 | 199,136 | 232,452 |
Extensions, discoveries and other additions | 43,613 | 9,776 | 17,869 |
Purchases of minerals in-place | 20 | 16,362 | 126 |
Revisions of previous estimates | (3,520) | 7,793 | (4,479) |
Production | (28,795) | (25,695) | (27,450) |
Sales of minerals in-place | (775) | (7,425) | (19,382) |
Ending balance | 210,490 | 199,947 | 199,136 |
Crude Oil and Condensate | EGYPT |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 102,305 | 108,050 | 106,646 | 95,981
Proved undeveloped reserves | 5,254 | 8,557 | 11,003 | 11,228
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 116,607 | 117,649 | 107,209 |
Extensions, discoveries and other additions | 12,979 | 7,580 | 13,390 |
Purchases of minerals in-place | 0 | 0 | 0 |
Revisions of previous estimates | 10,505 | 22,433 | 22,727 |
Production | (32,532) | (31,055) | (25,677) |
Sales of minerals in-place | 0 | 0 | 0 |
Ending balance | 107,559 | 116,607 | 117,649 |
Crude Oil and Condensate | North Sea |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 61,076 | 82,580 | 77,073 | 86,566
Proved undeveloped reserves | 0 | 2,873 | 5,757 | 7,273
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 85,453 | 82,830 | 93,839 |
Extensions, discoveries and other additions | 301 | 2,616 | 2,288 |
Purchases of minerals in-place | 0 | 0 | 0 |
Revisions of previous estimates | (12,002) | 11,898 | (60) |
Production | (12,676) | (11,891) | (13,237) |
Sales of minerals in-place | 0 | 0 | 0 |
Ending balance | 61,076 | 85,453 | 82,830 |
Crude Oil and Condensate | Noncontrolling Interests | EGYPT |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 36,000 | 39,000 | 39,000 | 36,000
Natural Gas Liquids |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 154,946 | 160,975 | 166,677 | 153,368
Proved undeveloped reserves | 18,401 | 19,080 | 16,685 | 15,587
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 180,055 | 183,362 | 168,955 |
Extensions, discoveries and other additions | 26,082 | 5,501 | 21,143 |
Purchases of minerals in-place | 21 | 10,985 | 191 |
Revisions of previous estimates | (9,332) | 9,917 | 22,862 |
Production | (23,446) | (23,370) | (24,806) |
Sales of minerals in-place | (33) | (6,340) | (4,983) |
Ending balance | 173,347 | 180,055 | 183,362 |
Natural Gas Liquids | United States |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 153,486 | 158,745 | 164,172 | 150,599
Proved undeveloped reserves | 18,401 | 19,004 | 16,380 | 15,141
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 177,749 | 180,552 | 165,740 |
Extensions, discoveries and other additions | 25,711 | 5,456 | 21,055 |
Purchases of minerals in-place | 21 | 10,985 | 191 |
Revisions of previous estimates | (8,568) | 9,991 | 22,724 |
Production | (22,993) | (22,895) | (24,175) |
Sales of minerals in-place | (33) | (6,340) | (4,983) |
Ending balance | 171,887 | 177,749 | 180,552 |
Natural Gas Liquids | EGYPT |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 0 | 0 | 446 | 716
Proved undeveloped reserves | 0 | 0 | 30 | 126
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 0 | 476 | 842 |
Extensions, discoveries and other additions | 0 | 0 | 7 |
Purchases of minerals in-place | 0 | 0 | 0 |
Revisions of previous estimates | 0 | (407) | (180) |
Production | 0 | (69) | (193) |
Sales of minerals in-place | 0 | 0 | 0 |
Ending balance | 0 | 0 | 476 |
Natural Gas Liquids | North Sea |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | 1,460 | 2,230 | 2,059 | 2,053
Proved undeveloped reserves | 0 | 76 | 275 | 320
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | 2,306 | 2,334 | 2,373 |
Extensions, discoveries and other additions | 371 | 45 | 81 |
Purchases of minerals in-place | 0 | 0 | 0 |
Revisions of previous estimates | (764) | 333 | 318 |
Production | (453) | (406) | (438) |
Sales of minerals in-place | 0 | 0 | 0 |
Ending balance | 1,460 | 2,306 | 2,334 |
Natural Gas Liquids | Noncontrolling Interests | EGYPT |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves |  |  | 159 | 281
Natural Gas |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | MMcf | 1,427,939 | 1,632,012 | 1,778,442 | 1,529,950
Proved undeveloped reserves | MMcf | 102,107 | 214,234 | 201,464 | 97,417
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | MMcf | 1,846,246 | 1,979,906 | 1,627,367 |
Extensions, discoveries and other additions | MMcf | 175,641 | 49,991 | 281,577 |
Purchases of minerals in-place | MMcf | 136 | 70,584 | 839 |
Revisions of previous estimates | MMcf | (189,496) | 134,893 | 395,924 |
Production | MMcf | (302,345) | (315,718) | (302,833) |
Sales of minerals in-place | MMcf | (136) | (73,410) | (22,968) |
Ending balance | MMcf | 1,530,046 | 1,846,246 | 1,979,906 |
Natural Gas | United States |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | MMcf | 1,003,956 | 1,166,218 | 1,237,461 | 1,052,756
Proved undeveloped reserves | MMcf | 99,495 | 210,862 | 184,441 | 76,504
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | MMcf | 1,377,080 | 1,421,902 | 1,129,260 |
Extensions, discoveries and other additions | MMcf | 158,118 | 38,157 | 227,684 |
Purchases of minerals in-place | MMcf | 136 | 70,584 | 839 |
Revisions of previous estimates | MMcf | (266,664) | 92,599 | 279,610 |
Production | MMcf | (165,083) | (172,752) | (192,523) |
Sales of minerals in-place | MMcf | (136) | (73,410) | (22,968) |
Ending balance | MMcf | 1,103,451 | 1,377,080 | 1,421,902 |
Natural Gas | EGYPT |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | MMcf | 377,144 | 399,502 | 464,826 | 409,035
Proved undeveloped reserves | MMcf | 2,612 | 1,068 | 9,899 | 12,572
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | MMcf | 400,570 | 474,725 | 421,607 |
Extensions, discoveries and other additions | MMcf | 14,188 | 10,191 | 50,209 |
Purchases of minerals in-place | 0 | 0 | 0 |
Revisions of previous estimates | 83,907 | 45,725 | 99,143 |
Production | (118,909) | (130,071) | (96,234) |
Sales of minerals in-place | 0 | 0 | 0 |
Ending balance | MMcf | 379,756 | 400,570 | 474,725 |
Natural Gas | North Sea |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | MMcf | 46,839 | 66,292 | 76,155 | 68,159
Proved undeveloped reserves | MMcf | 0 | 2,304 | 7,124 | 8,341
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |  |
Beginning balance | MMcf | 68,596 | 83,279 | 76,500 |
Extensions, discoveries and other additions | MMcf | 3,335 | 1,643 | 3,684 |
Purchases of minerals in-place | 0 | 0 | 0 |
Revisions of previous estimates | (6,739) | (3,431) | 17,171 |
Production | (18,353) | (12,895) | (14,076) |
Sales of minerals in-place | 0 | 0 | 0 |
Ending balance | MMcf | 46,839 | 68,596 | 83,279 |
Natural Gas | Noncontrolling Interests | EGYPT |  |  |  |
Reserve Quantities [Line Items] |  |  |  |
Proved developed reserves | MMcf | 127,000 | 134,000 | 158,000 | 141,000

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- Definition Additions to proved reserves that result from (1) extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery and (2) discovery of new fields with proved reserves or of new reservoirs of proved reserves in old fields. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Form 20-F -Section Item 18 -Subsection Instruction 2 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-5 + Details
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