v2.4.0.6

Supplemental Information On Oil And Gas Operations (Proved Reserves) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2011 MMbls | Dec. 31, 2010 MMbls | Dec. 31, 2009 MMbls | Dec. 31, 2008 MMbls
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Conversion rate of gas reserves from barrels of oil to Boe | 6 |  |  |  |  |  |  |
U.S. Onshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 403 |  | 411 |  |  |  |  |
Proved developed and undeveloped reserves, revisions other than price | (2) |  |  |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 118 |  |  |  |  |  |  |
Canada [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 379 |  | 420 |  |  |  |  |
Proved developed and undeveloped reserves, revisions other than price | (14) |  |  |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 30 |  |  |  |  |  |  |
North America [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 782 |  | 831 |  |  |  |  |
Proved developed and undeveloped reserves, revisions other than price | (16) |  |  |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 148 |  |  |  |  |  |  |
Oil (MMBbls) [Member] | U.S. Onshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 168 |  | 148 |  | 139 |  | 133 |
Proved developed and undeveloped reserves, revisions due to prices | 2 |  | 4 |  | 9 |  |  |
Proved developed and undeveloped reserves, revisions other than price | (1) |  | 2 |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 36 |  | 19 |  | 9 |  |  |
Proved developed and undeveloped reserves, production | (17) |  | (14) |  | (12) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (2) |  |  |  |  |
Proved developed reserves, volume | 146 |  | 131 |  | 119 |  | 111 |
Proved developed producing reserves, BOE | 139 |  | 123 |  | 112 |  | 103 |
Proved undeveloped reserves, volume | 22 |  | 17 |  | 20 |  | 22 |
Oil (MMBbls) [Member] | U.S. Offshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves |  |  |  |  | 33 |  | 34 |
Proved developed and undeveloped reserves, revisions due to prices |  |  | 1 |  | 2 |  |  |
Proved developed and undeveloped reserves, revisions other than price |  |  | 2 |  | 1 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  |  | 1 |  | 2 |  |  |
Proved developed and undeveloped reserves, production |  |  | (2) |  | (5) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (35) |  | (1) |  |  |
Proved developed reserves, volume |  |  |  |  | 21 |  | 22 |
Proved developed producing reserves, BOE |  |  |  |  | 12 |  | 9 |
Proved undeveloped reserves, volume |  |  |  |  | 12 |  | 12 |
Oil (MMBbls) [Member] | Total U.S [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 168 |  | 148 |  | 172 |  | 167 |
Proved developed and undeveloped reserves, revisions due to prices | 2 |  | 5 |  | 11 |  |  |
Proved developed and undeveloped reserves, revisions other than price | (1) |  | 4 |  | 1 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 36 |  | 20 |  | 11 |  |  |
Proved developed and undeveloped reserves, production | (17) |  | (16) |  | (17) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (37) |  | (1) |  |  |
Proved developed reserves, volume | 146 |  | 131 |  | 140 |  | 133 |
Proved developed producing reserves, BOE | 139 |  | 123 |  | 124 |  | 112 |
Proved undeveloped reserves, volume | 22 |  | 17 |  | 32 |  | 34 |
Oil (MMBbls) [Member] | Canada [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 537 |  | 533 |  | 514 |  | 134 |
Proved developed and undeveloped reserves, revisions due to prices | (15) |  | (24) |  | 291 |  |  |
Proved developed and undeveloped reserves, revisions other than price | 11 |  | 9 |  | (8) |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 36 |  | 59 |  | 122 |  |  |
Proved developed and undeveloped reserves, production | (28) |  | (25) |  | (25) |  |  |
Proved developed reserves, volume | 163 |  | 126 |  | 149 |  | 110 |
Proved developed producing reserves, BOE | 155 |  | 116 |  | 137 |  | 91 |
Proved undeveloped reserves, volume | 374 |  | 407 |  | 365 |  | 24 |
Oil (MMBbls) [Member] | North America [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 705 |  | 681 |  | 686 |  | 301 |
Proved developed and undeveloped reserves, revisions due to prices | (13) |  | (19) |  | 302 |  |  |
Proved developed and undeveloped reserves, revisions other than price | 10 |  | 13 |  | (7) |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 72 |  | 79 |  | 133 |  |  |
Proved developed and undeveloped reserves, production | (45) |  | (41) |  | (42) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (37) |  | (1) |  |  |
Proved developed reserves, volume | 309 |  | 257 |  | 289 |  | 243 |
Proved developed producing reserves, BOE | 294 |  | 239 |  | 261 |  | 203 |
Proved undeveloped reserves, volume | 396 |  | 424 |  | 397 |  | 58 |
Gas (Bcf) [Member] | U.S. Onshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 9,507 |  | 9,065 |  | 8,127 |  | 7,979 |
Proved developed and undeveloped reserves, revisions due to prices | (1) |  | 449 |  | (661) |  |  |
Proved developed and undeveloped reserves, revisions other than price | (243) |  | 105 |  | 119 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 1,410 |  | 1,088 |  | 1,387 |  |  |
Proved developed and undeveloped reserves, purchase of reserves | 16 |  | 12 |  | 1 |  |  |
Proved developed and undeveloped reserves, production | (740) |  | (699) |  | (698) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (17) |  |  |  |  |
Proved developed reserves, volume | 7,957 |  | 7,280 |  | 6,447 |  | 6,469 |
Proved developed producing reserves, BOE | 7,409 |  | 6,702 |  | 5,860 |  | 5,787 |
Proved undeveloped reserves, volume | 1,550 |  | 1,785 |  | 1,680 |  | 1,510 |
Gas (Bcf) [Member] | U.S. Offshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves |  |  |  |  | 342 |  | 390 |
Proved developed and undeveloped reserves, revisions due to prices |  |  | 2 |  | (4) |  |  |
Proved developed and undeveloped reserves, revisions other than price |  |  | (26) |  | (62) |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  |  | 7 |  | 64 |  |  |
Proved developed and undeveloped reserves, production |  |  | (17) |  | (45) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (308) |  | (1) |  |  |
Proved developed reserves, volume |  |  |  |  | 185 |  | 212 |
Proved developed producing reserves, BOE |  |  |  |  | 137 |  | 64 |
Proved undeveloped reserves, volume |  |  |  |  | 157 |  | 178 |
Gas (Bcf) [Member] | Total U.S [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 9,507 |  | 9,065 |  | 8,469 |  | 8,369 |
Proved developed and undeveloped reserves, revisions due to prices | (1) |  | 451 |  | (665) |  |  |
Proved developed and undeveloped reserves, revisions other than price | (243) |  | 79 |  | 57 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 1,410 |  | 1,095 |  | 1,451 |  |  |
Proved developed and undeveloped reserves, purchase of reserves | 16 |  | 12 |  | 1 |  |  |
Proved developed and undeveloped reserves, production | (740) |  | (716) |  | (743) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (325) |  | (1) |  |  |
Proved developed reserves, volume | 7,957 |  | 7,280 |  | 6,632 |  | 6,681 |
Proved developed producing reserves, BOE | 7,409 |  | 6,702 |  | 5,997 |  | 5,851 |
Proved undeveloped reserves, volume | 1,550 |  | 1,785 |  | 1,837 |  | 1,688 |
Gas (Bcf) [Member] | Canada [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 979 |  | 1,218 |  | 1,288 |  | 1,510 |
Proved developed and undeveloped reserves, revisions due to prices | (60) |  | 21 |  | (29) |  |  |
Proved developed and undeveloped reserves, revisions other than price | (38) |  | (17) |  | (14) |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 58 |  | 131 |  | 67 |  |  |
Proved developed and undeveloped reserves, purchase of reserves | 20 |  | 9 |  | 6 |  |  |
Proved developed and undeveloped reserves, production | (213) |  | (214) |  | (223) |  |  |
Proved developed and undeveloped reserves, sale of reserves | (6) |  |  |  | (29) |  |  |
Proved developed reserves, volume | 951 |  | 1,144 |  | 1,213 |  | 1,357 |
Proved developed producing reserves, BOE | 862 |  | 1,031 |  | 1,075 |  | 1,194 |
Proved undeveloped reserves, volume | 28 |  | 74 |  | 75 |  | 153 |
Gas (Bcf) [Member] | North America [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 10,486 |  | 10,283 |  | 9,757 |  | 9,879 |
Proved developed and undeveloped reserves, revisions due to prices | (61) |  | 472 |  | (694) |  |  |
Proved developed and undeveloped reserves, revisions other than price | (281) |  | 62 |  | 43 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 1,468 |  | 1,226 |  | 1,518 |  |  |
Proved developed and undeveloped reserves, purchase of reserves | 36 |  | 21 |  | 7 |  |  |
Proved developed and undeveloped reserves, production | (953) |  | (930) |  | (966) |  |  |
Proved developed and undeveloped reserves, sale of reserves | (6) |  | (325) |  | (30) |  |  |
Proved developed reserves, volume | 8,908 |  | 8,424 |  | 7,845 |  | 8,038 |
Proved developed producing reserves, BOE | 8,271 |  | 7,733 |  | 7,072 |  | 7,045 |
Proved undeveloped reserves, volume | 1,578 |  | 1,859 |  | 1,912 |  | 1,841 |
Natural Gas Liquids (MMBbls) [Member] | U.S. Onshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 525 |  | 449 |  | 385 |  | 315 |
Proved developed and undeveloped reserves, revisions due to prices | 4 |  | 14 |  | (11) |  |  |
Proved developed and undeveloped reserves, revisions other than price | 1 |  | 13 |  | 36 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 102 |  | 68 |  | 70 |  |  |
Proved developed and undeveloped reserves, purchase of reserves | 2 |  |  |  |  |  |  |
Proved developed and undeveloped reserves, production | (33) |  | (28) |  | (25) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (3) |  |  |  |  |
Proved developed reserves, volume | 402 |  | 353 |  | 293 |  | 260 |
Proved developed producing reserves, BOE | 372 |  | 318 |  | 265 |  | 230 |
Proved undeveloped reserves, volume | 123 |  | 96 |  | 92 |  | 55 |
Natural Gas Liquids (MMBbls) [Member] | U.S. Offshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves |  |  |  |  | 2 |  | 2 |
Proved developed and undeveloped reserves, revisions other than price |  |  | 3 |  | 1 |  |  |
Proved developed and undeveloped reserves, production |  |  |  |  | (1) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (5) |  |  |  |  |
Proved developed reserves, volume |  |  |  |  | 1 |  | 1 |
Proved developed producing reserves, BOE |  |  |  |  | 1 |  |  |
Proved undeveloped reserves, volume |  |  |  |  | 1 |  | 1 |
Natural Gas Liquids (MMBbls) [Member] | Total U.S [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 525 |  | 449 |  | 387 |  | 317 |
Proved developed and undeveloped reserves, revisions due to prices | 4 |  | 14 |  | (11) |  |  |
Proved developed and undeveloped reserves, revisions other than price | 1 |  | 16 |  | 37 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 102 |  | 68 |  | 70 |  |  |
Proved developed and undeveloped reserves, purchase of reserves | 2 |  |  |  |  |  |  |
Proved developed and undeveloped reserves, production | (33) |  | (28) |  | (26) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (8) |  |  |  |  |
Proved developed reserves, volume | 402 |  | 353 |  | 294 |  | 261 |
Proved developed producing reserves, BOE | 372 |  | 318 |  | 266 |  | 230 |
Proved undeveloped reserves, volume | 123 |  | 96 |  | 93 |  | 56 |
Natural Gas Liquids (MMBbls) [Member] | Canada [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 27 |  | 30 |  | 34 |  | 35 |
Proved developed and undeveloped reserves, revisions due to prices | (1) |  | (1) |  | 2 |  |  |
Proved developed and undeveloped reserves, revisions other than price |  |  | (1) |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 2 |  | 2 |  | 1 |  |  |
Proved developed and undeveloped reserves, production | (4) |  | (4) |  | (4) |  |  |
Proved developed reserves, volume | 26 |  | 28 |  | 32 |  | 31 |
Proved developed producing reserves, BOE | 24 |  | 26 |  | 28 |  | 29 |
Proved undeveloped reserves, volume | 1 |  | 2 |  | 2 |  | 4 |
Natural Gas Liquids (MMBbls) [Member] | North America [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 552 |  | 479 |  | 421 |  | 352 |
Proved developed and undeveloped reserves, revisions due to prices | 3 |  | 13 |  | (9) |  |  |
Proved developed and undeveloped reserves, revisions other than price | 1 |  | 15 |  | 37 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | 104 |  | 70 |  | 71 |  |  |
Proved developed and undeveloped reserves, purchase of reserves | 2 |  |  |  |  |  |  |
Proved developed and undeveloped reserves, production | (37) |  | (32) |  | (30) |  |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (8) |  |  |  |  |
Proved developed reserves, volume | 428 |  | 381 |  | 326 |  | 292 |
Proved developed producing reserves, BOE | 396 |  | 344 |  | 294 |  | 259 |
Proved undeveloped reserves, volume | 124 |  | 98 |  | 95 |  | 60 |
Total (MMBoe) [Member] | U.S. Onshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 2,278 | [1] | 2,107 | [1] | 1,878 | [1] | 1,777 | [1]
Proved developed and undeveloped reserves, revisions due to prices | 6 | [1] | 92 | [1] | (113) | [1] |  |
Proved developed and undeveloped reserves, revisions other than price | (41) | [1] | 32 | [1] | 57 | [1] |  |
Proved developed and undeveloped reserves, extensions and discoveries | 374 | [1] | 269 | [1] | 311 | [1] |  |
Proved developed and undeveloped reserves, purchase of reserves | 5 | [1] | 2 | [1] |  |  |  |
Proved developed and undeveloped reserves, production | (173) | [1] | (158) | [1] | (154) | [1] |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (8) | [1] |  |  |  |
Proved developed producing reserves, BOE | 1,746 | [1] | 1,557 | [1] | 1,354 | [1] | 1,298 | [1]
Proved developed reserves, BOE | 1,875 | [1] | 1,696 | [1] | 1,486 | [1] | 1,449 | [1]
Proved undeveloped reserves, BOE | 403 | [1] | 411 | [1] | 392 | [1] | 328 | [1]
Total (MMBoe) [Member] | U.S. Offshore [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves |  |  |  |  | 92 | [1] | 101 | [1]
Proved developed and undeveloped reserves, revisions due to prices |  |  | 1 | [1] | 1 | [1] |  |
Proved developed and undeveloped reserves, revisions other than price |  |  | 1 | [1] | (8) | [1] |  |
Proved developed and undeveloped reserves, extensions and discoveries |  |  | 2 | [1] | 12 | [1] |  |
Proved developed and undeveloped reserves, production |  |  | (5) | [1] | (13) | [1] |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (91) | [1] | (1) | [1] |  |
Proved developed producing reserves, BOE |  |  |  |  | 35 | [1] | 20 | [1]
Proved developed reserves, BOE |  |  |  |  | 53 | [1] | 59 | [1]
Proved undeveloped reserves, BOE |  |  |  |  | 39 | [1] | 42 | [1]
Total (MMBoe) [Member] | Total U.S [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 2,278 | [1] | 2,107 | [1] | 1,970 | [1] | 1,878 | [1]
Proved developed and undeveloped reserves, revisions due to prices | 6 | [1] | 93 | [1] | (112) | [1] |  |
Proved developed and undeveloped reserves, revisions other than price | (41) | [1] | 33 | [1] | 49 | [1] |  |
Proved developed and undeveloped reserves, extensions and discoveries | 374 | [1] | 271 | [1] | 323 | [1] |  |
Proved developed and undeveloped reserves, purchase of reserves | 5 | [1] | 2 | [1] |  |  |  |
Proved developed and undeveloped reserves, production | (173) | [1] | (163) | [1] | (167) | [1] |  |
Proved developed and undeveloped reserves, sale of reserves |  |  | (99) | [1] | (1) | [1] |  |
Proved developed producing reserves, BOE | 1,746 | [1] | 1,557 | [1] | 1,389 | [1] | 1,318 | [1]
Proved developed reserves, BOE | 1,875 | [1] | 1,696 | [1] | 1,539 | [1] | 1,508 | [1]
Proved undeveloped reserves, BOE | 403 | [1] | 411 | [1] | 431 | [1] | 370 | [1]
Total (MMBoe) [Member] | Canada [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 727 | [1] | 766 | [1] | 763 | [1] | 421 | [1]
Proved developed and undeveloped reserves, revisions due to prices | (27) | [1] | (21) | [1] | 289 | [1] |  |
Proved developed and undeveloped reserves, revisions other than price | 6 | [1] | 5 | [1] | (11) | [1] |  |
Proved developed and undeveloped reserves, extensions and discoveries | 47 | [1] | 83 | [1] | 135 | [1] |  |
Proved developed and undeveloped reserves, purchase of reserves | 3 | [1] | 2 | [1] | 1 | [1] |  |
Proved developed and undeveloped reserves, production | (67) | [1] | (65) | [1] | (66) | [1] |  |
Proved developed and undeveloped reserves, sale of reserves | (1) | [1] | (1) | [1] | (6) | [1] |  |
Proved developed producing reserves, BOE | 323 | [1] | 314 | [1] | 344 | [1] | 319 | [1]
Proved developed reserves, BOE | 348 | [1] | 346 | [1] | 383 | [1] | 367 | [1]
Proved undeveloped reserves, BOE | 379 | [1] | 420 | [1] | 380 | [1] | 54 | [1]
Total (MMBoe) [Member] | North America [Member] |  |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves | 3,005 | [1] | 2,873 | [1] | 2,733 | [1] | 2,299 | [1]
Proved developed and undeveloped reserves, revisions due to prices | (21) | [1] | 72 | [1] | 177 | [1] |  |
Proved developed and undeveloped reserves, revisions other than price | (35) | [1] | 38 | [1] | 38 | [1] |  |
Proved developed and undeveloped reserves, extensions and discoveries | 421 | [1] | 354 | [1] | 458 | [1] |  |
Proved developed and undeveloped reserves, purchase of reserves | 8 | [1] | 4 | [1] | 1 | [1] |  |
Proved developed and undeveloped reserves, production | (240) | [1] | (228) | [1] | (233) | [1] |  |
Proved developed and undeveloped reserves, sale of reserves | (1) | [1] | (100) | [1] | (7) | [1] |  |
Proved developed producing reserves, BOE | 2,069 | [1] | 1,871 | [1] | 1,733 | [1] | 1,637 | [1]
Proved developed reserves, BOE | 2,223 | [1] | 2,042 | [1] | 1,922 | [1] | 1,875 | [1]
Proved undeveloped reserves, BOE | 782 | [1] | 831 | [1] | 811 | [1] | 424 | [1]
[1] | Gas reserves are converted to Boe at the rate of six Mcf per Bbl of oil, based upon the approximate relative energy content of gas and oil. This rate is not necessarily indicative of the relationship of natural gas and oil prices. Natural gas liquids reserves are converted to Boe on a one-to-one basis with oil.

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- Definition Conversion Rate Of Gas Reserves From Mcf To Boe + References No definition available. + Details
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Data Type: | xbrli:integerItemType
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- Definition Proved Developed And Undeveloped Reserves Revisions Due To Prices + References No definition available. + Details
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Namespace Prefix: | dvn_
Data Type: | xbrli:decimalItemType
Balance Type: | na
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- Definition Proved developed producing reserves BOE. + References No definition available. + Details
Name: | dvn_ProvedDevelopedProducingReservesBoe
Namespace Prefix: | dvn_
Data Type: | xbrli:decimalItemType
Balance Type: | na
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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/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 19 -Paragraph 59F -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6821537&loc=d3e61831-109447 + Details
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- Definition The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(a)(2)) -URI http://asc.fasb.org/extlink&oid=6949603&loc=d3e511914-122862 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 19 -Paragraph 59F -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 10 -Paragraph a -Subparagraph 2 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6821537&loc=d3e61831-109447 + Details
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- Definition Production of proved reserves. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 19 -Paragraph 59F -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6821537&loc=d3e61831-109447 + Details
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- Definition Purchase of minerals in place. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 19 -Paragraph 59F -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6821537&loc=d3e61831-109447 + Details
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- Definition Revisions represent changes in previous estimates of proved reserves, either upward or downward, resulting from new information (except for an increase in proved acreage) normally obtained from development drilling and production history or resulting from change in economic factors. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 19 -Paragraph 59F -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6821537&loc=d3e61831-109447 + Details
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- Definition Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities do not include reserves relating to interests of others in properties owned by the enterprise. Measured in barrel of oil equivalent (BOE). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 19 -Paragraph 59E -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6821537&loc=d3e61797-109447 + Details
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