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v3.10.0.1

Supplemental Oil and Gas Information (Summary of Proved Reserves Based on Average Prices) (Details) bbl in Millions, MMBbls in Millions, ft³ in Billions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 MMcf bbl ft³ MMBbls | Dec. 31, 2018 bbl ft³ MMBbls | Dec. 31, 2018 bbl ft³ MMBbls | Dec. 31, 2018 bbl ft³ MMBbls | Dec. 31, 2017 ft³ MMBbls | Dec. 31, 2016 ft³ MMBbls | Dec. 31, 2015 ft³ MMBbls
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 328.1 |  | 329.0 | 456.2 |
Revisions of previous estimates |  |  |  |  |  |  |  | (15.3) |  | (6.0) | (5.8) |
Improved recovery |  |  |  |  |  |  |  | 0.8 |  | 2.0 |  |
Extensions and discoveries |  |  |  |  |  |  |  | 58.9 |  | 31.6 | 11.0 |
Purchases of properties |  |  |  |  |  |  |  | 93.6 |  | 4.7 | 26.3 |
Sales of properties |  |  |  |  |  |  |  |  |  |  | (121.0) |
Production |  |  |  |  |  |  |  | (33.6) |  | (33.2) | (37.7) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 432.5 | [1] | 328.1 | 329.0 |
Proved developed reserves |  | 249.3 | [2] | 249.3 | [2] | 249.3 | [2] | 249.3 | [2] | 185.5 | 184.9 | 326.6
Proved undeveloped reserves |  | 183.2 | [3] | 183.2 | [3] | 183.2 | [3] | 183.2 | [3] | 142.6 | 144.1 | 129.6
Crude Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 328.1 |  | 329.0 | 341.4 |
Revisions of previous estimates |  |  |  |  |  |  |  | (15.3) |  | (6.0) | (5.8) |
Improved recovery |  |  |  |  |  |  |  | 0.8 |  | 2.0 |  |
Extensions and discoveries |  |  |  |  |  |  |  | 58.9 |  | 31.6 | 11.0 |
Purchases of properties |  |  |  |  |  |  |  | 93.6 |  | 4.7 | 26.3 |
Sales of properties |  |  |  |  |  |  |  |  |  |  | (7.8) |
Production |  |  |  |  |  |  |  | (33.6) |  | (33.2) | (36.1) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 432.5 | [1] | 328.1 | 329.0 |
Proved developed reserves |  | 249.3 | [2] | 249.3 | [2] | 249.3 | [2] | 249.3 | [2] | 185.5 | 184.9 | 211.8
Proved undeveloped reserves |  | 183.2 | [3] | 183.2 | [3] | 183.2 | [3] | 183.2 | [3] | 142.6 | 144.1 | 129.6
Natural Gas Liquids [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 48.9 |  | 42.5 | 36.4 |
Revisions of previous estimates |  |  |  |  |  |  |  | (6.2) |  | 1.3 | 1.6 |
Extensions and discoveries |  |  |  |  |  |  |  | 12.0 |  | 7.8 | 2.9 |
Purchases of properties |  |  |  |  |  |  |  | 3.0 |  | 0.5 | 5.1 |
Production |  |  |  |  |  |  |  | (3.5) |  | (3.2) | (3.5) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 54.2 | [4] | 48.9 | 42.5 |
Proved developed reserves |  | 27.3 | [5] | 27.3 | [5] | 27.3 | [5] | 27.3 | [5] | 24.6 | 22.2 | 21.6
Proved undeveloped reserves |  | 26.9 | [6] | 26.9 | [6] | 26.9 | [6] | 26.9 | [6] | 24.3 | 20.3 | 14.8
Natural Gas [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance | ft³ |  |  |  |  |  | 1,927.1 |  |  |  | 1,878.0 | 1,688.8 |
Revisions of previous estimates | ft³ |  |  |  |  |  | (1.8) |  |  |  | (5.4) | 43.3 |
Improved recovery | ft³ |  |  |  |  |  | 0.6 |  |  |  |  | 164.2 |
Extensions and discoveries | ft³ |  |  |  |  |  | 310.3 |  |  |  | 190.6 | 122.3 |
Purchases of properties | ft³ |  |  |  |  |  | 61.7 |  |  |  | 4.0 |  |
Sales of properties | ft³ |  |  |  |  |  |  |  |  |  |  | (2.2) |
Production | ft³ |  |  |  |  |  | (154.3) |  |  |  | (140.1) | (138.4) |
Proved developed and undeveloped reserves, Ending Balance | ft³ |  |  |  |  |  | 2,143.6 | [7] |  |  | 1,927.1 | 1,878.0 |
Proved developed reserves | ft³ |  | 921.6 | [8] | 921.6 | [8] | 921.6 | [8] | 921.6 | [8] | 819.3 | 818.1 | 783.5
Proved undeveloped reserves | ft³ |  | 1,222.0 | [9] | 1,222.0 | [9] | 1,222.0 | [9] | 1,222.0 | [9] | 1,107.8 | 1,059.9 | 905.3
MP Gulf Of Mexico LLC [Member] | Crude Oil And Condensate [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves, Ending Balance | bbl |  |  |  | 25.5 |  |  |  |  |  |  |  |
Proved developed reserves | bbl |  | 19.1 |  | 19.1 |  | 19.1 |  | 19.1 |  |  |  |
Proved undeveloped reserves | bbl |  | 6.4 |  | 6.4 |  | 6.4 |  | 6.4 |  |  |  |
MP Gulf Of Mexico LLC [Member] | Natural Gas Liquids [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves, Ending Balance | bbl |  |  |  | 1.1 |  |  |  |  |  |  |  |
Proved developed reserves | bbl |  | 0.8 |  | 0.8 |  | 0.8 |  | 0.8 |  |  |  |
Proved undeveloped reserves | bbl |  | 0.3 |  | 0.3 |  | 0.3 |  | 0.3 |  |  |  |
MP Gulf Of Mexico LLC [Member] | Natural Gas [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves, Ending Balance | ft³ |  |  |  |  |  | 10.8 |  |  |  |  |  |
Proved developed reserves | ft³ |  | 8.2 |  | 8.2 |  | 8.2 |  | 8.2 |  |  |  |
Proved undeveloped reserves | ft³ |  | 2.6 |  | 2.6 |  | 2.6 |  | 2.6 |  |  |  |
United States [Member] | Crude Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 224.7 |  | 214.4 | 238.9 |
Revisions of previous estimates |  |  |  |  |  |  |  | (15.0) |  | (4.7) | (10.9) |
Extensions and discoveries |  |  |  |  |  |  |  | 42.9 |  | 27.2 | 8.6 |
Purchases of properties |  |  |  |  |  |  |  | 92.3 |  | 4.7 |  |
Sales of properties |  |  |  |  |  |  |  |  |  |  | (4.5) |
Production |  |  |  |  |  |  |  | (18.4) |  | (16.9) | (17.7) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 326.5 | [1] | 224.7 | 214.4 |
Proved developed reserves |  | 189.0 | [2] | 189.0 | [2] | 189.0 | [2] | 189.0 | [2] | 126.3 | 113.9 | 125.9
Proved undeveloped reserves |  | 137.5 | [3] | 137.5 | [3] | 137.5 | [3] | 137.5 | [3] | 98.4 | 100.5 | 113.0
United States [Member] | Natural Gas Liquids [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 43.0 |  | 36.4 | 35.4 |
Revisions of previous estimates |  |  |  |  |  |  |  | (5.3) |  | 2.0 | 1.2 |
Extensions and discoveries |  |  |  |  |  |  |  | 9.7 |  | 7.0 | 2.8 |
Purchases of properties |  |  |  |  |  |  |  | 3.0 |  | 0.5 |  |
Production |  |  |  |  |  |  |  | (2.8) |  | (2.9) | (3.0) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 47.6 | [4] | 43.0 | 36.4 |
Proved developed reserves |  | 24.9 | [5] | 24.9 | [5] | 24.9 | [5] | 24.9 | [5] | 23.3 | 20.8 | 20.7
Proved undeveloped reserves |  | 22.7 | [6] | 22.7 | [6] | 22.7 | [6] | 22.7 | [6] | 19.7 | 15.6 | 14.7
United States [Member] | Natural Gas [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance | ft³ |  |  |  |  |  | 223.3 |  |  |  | 219.4 | 232.4 |
Revisions of previous estimates | ft³ |  |  |  |  |  | 37.6 |  |  |  | (16.0) | 0.1 |
Improved recovery | ft³ |  |  |  |  |  |  |  |  |  |  | 6.4 |
Extensions and discoveries | ft³ |  |  |  |  |  | 44.7 |  |  |  | 32.2 |  |
Purchases of properties | ft³ |  |  |  |  |  | 20.3 |  |  |  | 4.0 |  |
Sales of properties | ft³ |  |  |  |  |  |  |  |  |  |  | (0.1) |
Production | ft³ |  |  |  |  |  | (16.9) |  |  |  | (16.3) | (19.4) |
Proved developed and undeveloped reserves, Ending Balance | ft³ |  |  |  |  |  | 309.0 | [7] |  |  | 223.3 | 219.4 |
Proved developed reserves | ft³ |  | 198.3 | [8] | 198.3 | [8] | 198.3 | [8] | 198.3 | [8] | 127.7 | 138.7 | 148.3
Proved undeveloped reserves | ft³ |  | 110.7 | [9] | 110.7 | [9] | 110.7 | [9] | 110.7 | [9] | 95.6 | 80.7 | 84.1
Canada [Member] | Crude Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 51.5 |  | 48.9 | 27.9 |
Revisions of previous estimates |  |  |  |  |  |  |  | (8.0) |  | 2.3 | 2.5 |
Extensions and discoveries |  |  |  |  |  |  |  | 16.0 |  | 4.4 |  |
Purchases of properties |  |  |  |  |  |  |  |  |  |  | 26.3 |
Sales of properties |  |  |  |  |  |  |  |  |  |  | (3.3) |
Production |  |  |  |  |  |  |  | (4.5) |  | (4.1) | (4.5) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 55.0 | [1] | 51.5 | 48.9 |
Proved developed reserves |  | 23.3 | [2] | 23.3 | [2] | 23.3 | [2] | 23.3 | [2] | 21.9 | 19.2 | 23.8
Proved undeveloped reserves |  | 31.7 | [3] | 31.7 | [3] | 31.7 | [3] | 31.7 | [3] | 29.6 | 29.7 | 4.1
Canada [Member] | Synthetic Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance | [10] |  |  |  |  |  |  |  |  | 0.0 | 114.8 |
Sales of properties | [10] |  |  |  |  |  |  |  |  |  | (113.2) |
Production | [10] |  |  |  |  |  |  |  |  |  | (1.6) |
Proved developed and undeveloped reserves, Ending Balance | [10] |  |  |  |  |  |  |  |  |  | 0.0 |
Proved developed reserves | [10] |  |  |  |  |  |  |  |  |  |  | 114.8
Canada [Member] | Natural Gas Liquids [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 5.6 |  | 5.6 | 0.4 |
Revisions of previous estimates |  |  |  |  |  |  |  | (1.6) |  | (0.6) | 0.2 |
Extensions and discoveries |  |  |  |  |  |  |  | 2.3 |  | 0.8 | 0.1 |
Purchases of properties |  |  |  |  |  |  |  |  |  |  | 5.1 |
Production |  |  |  |  |  |  |  | (0.4) |  | (0.2) | (0.2) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 5.9 | [4] | 5.6 | 5.6 |
Proved developed reserves |  | 1.7 | [5] | 1.7 | [5] | 1.7 | [5] | 1.7 | [5] | 1.0 | 0.9 | 0.3
Proved undeveloped reserves |  | 4.2 | [6] | 4.2 | [6] | 4.2 | [6] | 4.2 | [6] | 4.6 | 4.7 | 0.1
Canada [Member] | Natural Gas [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance | ft³ |  |  |  |  |  | 1,212.4 |  |  |  | 1,118.9 | 909.6 |
Revisions of previous estimates | ft³ |  |  |  |  |  | (51.2) |  |  |  | 19.4 | 45.3 |
Improved recovery | ft³ |  |  |  |  |  |  |  |  |  |  | 120.2 |
Extensions and discoveries | ft³ |  |  |  |  |  | 261.0 |  |  |  | 156.7 | 122.3 |
Purchases of properties | ft³ |  |  |  |  |  | 41.4 |  |  |  |  |  |
Sales of properties | ft³ |  |  |  |  |  |  |  |  |  |  | (2.1) |
Production | ft³ |  |  |  |  |  | (97.2) |  |  |  | (82.6) | (76.4) |
Proved developed and undeveloped reserves, Ending Balance | ft³ |  |  |  |  |  | 1,366.4 | [7] |  |  | 1,212.4 | 1,118.9 |
Proved developed reserves | ft³ |  | 595.0 | [8] | 595.0 | [8] | 595.0 | [8] | 595.0 | [8] | 547.0 | 498.9 | 453.5
Proved undeveloped reserves | ft³ |  | 771.4 | [9] | 771.4 | [9] | 771.4 | [9] | 771.4 | [9] | 665.5 | 620.0 | 456.1
Malaysia [Member] | Crude Oil [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 51.9 |  | 65.7 | 74.6 |
Revisions of previous estimates |  |  |  |  |  |  |  | 7.7 |  | (3.6) | 2.6 |
Improved recovery |  |  |  |  |  |  |  | 0.8 |  | 2.0 |  |
Extensions and discoveries |  |  |  |  |  |  |  |  |  |  | 2.4 |
Purchases of properties |  |  |  |  |  |  |  | 1.3 |  |  |  |
Production |  |  |  |  |  |  |  | (10.7) |  | (12.2) | (13.9) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 51.0 | [1] | 51.9 | 65.7 |
Proved developed reserves |  | 37.0 | [2] | 37.0 | [2] | 37.0 | [2] | 37.0 | [2] | 37.3 | 51.8 | 62.1
Proved undeveloped reserves |  | 14.0 | [3] | 14.0 | [3] | 14.0 | [3] | 14.0 | [3] | 14.6 | 13.9 | 12.5
Malaysia [Member] | Crude Oil And Condensate [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 51.7 |  |  |  |
Malaysia [Member] | Natural Gas Liquids [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance |  |  |  |  |  |  |  | 0.3 |  | 0.5 | 0.6 |
Revisions of previous estimates |  |  |  |  |  |  |  | 0.7 |  | (0.1) | 0.2 |
Production |  |  |  |  |  |  |  | (0.3) |  | (0.1) | (0.3) |
Proved developed and undeveloped reserves, Ending Balance |  |  |  |  |  |  |  | 0.7 | [4] | 0.3 | 0.5 |
Proved developed reserves |  | 0.7 | [5] | 0.7 | [5] | 0.7 | [5] | 0.7 | [5] | 0.3 | 0.5 | 0.6
Malaysia [Member] | Natural Gas [Member] |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped oil reserves: |  |  |  |  |  |  |  |  |  |  |  |
Proved developed and undeveloped crude oil/synthetic oil reserves, Beginning Balance | ft³ |  |  |  |  |  | 491.4 |  |  |  | 539.7 | 546.8 |
Revisions of previous estimates | ft³ |  |  |  |  |  | 11.8 |  |  |  | (8.8) | (2.1) |
Improved recovery | ft³ |  |  |  |  |  | 0.6 |  |  |  |  | 37.6 |
Extensions and discoveries | ft³ |  |  |  |  |  | 4.6 |  |  |  | 1.7 |  |
Production | ft³ |  |  |  |  |  | (40.2) |  |  |  | (41.2) | (42.6) |
Proved developed and undeveloped reserves, Ending Balance |  | 468,200 |  |  |  | 468.2 | [7] |  |  | 491.4 | 539.7 |
Proved developed reserves | ft³ |  | 128.3 | [8] | 128.3 | [8] | 128.3 | [8] | 128.3 | [8] | 144.6 | 180.5 | 181.7
Proved undeveloped reserves | ft³ |  | 339.9 | [9] | 339.9 | [9] | 339.9 | [9] | 339.9 | [9] | 346.7 | 359.2 | 365.1
[1] | Includes total proved reserves of 25.5 MMBO for Total and United States attributable to the noncontrolling interest in MP GOM.
[2] | Includes proved developed reserves of 19.1 MMBO for Total and United States attributable to the noncontrolling interest in MP GOM.
[3] | Includes proved undeveloped reserves of 6.4 MMBO for Total and United States attributable to the noncontrolling interest in MP GOM.
[4] | Includes total proved reserves of 1.1 MMBBL for Total and United States attributable to the noncontrolling interest in MP GOM.
[5] | Includes proved developed reserves of 0.8 MMBBL for Total and United States attributable to the noncontrolling interest in MP GOM.
[6] | Includes proved undeveloped reserves of 0.3 MMBBL for Total and United States attributable to the noncontrolling interest in MP GOM.
[7] | Includes total proved reserves of 10.8 BCF for Total and United States attributable to the noncontrolling interest in MP GOM.
[8] | Includes proved developed reserves of 8.2 BCF for Total and United States attributable to the noncontrolling interest in MP GOM.
[9] | Includes proved undeveloped reserves of 2.6 BCF for Total and United States attributable to the noncontrolling interest in MP GOM.
[10] | All synthetic oil operations were sold in June 2016.

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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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 Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447 + Details
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- Definition Changes in proved reserve estimates resulting from application of improved recovery techniques. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68064819&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 235 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447 Reference 2: 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=82851474&loc=d3e511914-122862 + Details
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- Definition Production of proved reserves. + References Reference 1: 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=68064819&loc=d3e61831-109447 + Details
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