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Revenue from Contracts with Customers (Tables) | 3 Months Ended
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Mar. 31, 2018
Revenue from Contracts with Customers [Abstract] |
Disaggregation of Revenue |
﻿ |  |  |  |
﻿ |  | Three Months Ended
﻿ |  | March 31,
﻿(Thousands of dollars) |  | 2018 |  | 2017
﻿Net crude oil and condensate revenue |  |  |  |
﻿United States – Onshore | $ | 182,649 |  | 149,986
﻿ – Offshore |  | 71,528 |  | 53,813
﻿Canada – Onshore |  | 21,293 |  | 9,121
﻿ – Offshore |  | 54,315 |  | 37,014
﻿Malaysia – Sarawak |  | 77,306 |  | 65,783
﻿ – Block K |  | 94,572 |  | 87,831
﻿Total crude oil and condensate revenue |  | 501,663 |  | 403,548
﻿ |  |  |  |
﻿Net natural gas liquids revenue |  |  |  |
﻿United States – Onshore |  | 12,134 |  | 9,647
﻿ – Offshore |  | 1,639 |  | 1,916
﻿Canada – Onshore |  | 3,469 |  | 432
﻿ – Offshore |  | – |  | –
﻿Malaysia – Sarawak |  | 6,192 |  | 5,182
﻿ – Block K |  | – |  | –
﻿Total natural gas liquids revenue |  | 23,434 |  | 17,177
﻿ |  |  |  |
﻿Net natural gas revenue |  |  |  |
﻿United States – Onshore |  | 6,770 |  | 7,036
﻿ – Offshore |  | 2,937 |  | 2,663
﻿Canada – Onshore |  | 39,594 |  | 39,847
﻿ – Offshore |  | – |  | –
﻿Malaysia – Sarawak |  | 32,383 |  | 38,589
﻿ – Block K |  | 173 |  | 175
﻿Total natural gas revenue |  | 81,857 |  | 88,310
﻿Total revenue from contracts with customers |  | 606,954 |  | 509,035
﻿ |  |  |  |
﻿Gain (loss) on crude contracts |  | (29,502) |  | 37,077
﻿Other operating income (loss) |  | 8,492 |  | (1,454)
﻿Gain (loss) on sale of assets |  | (339) |  | 131,982
﻿Total revenue | $ | 585,605 |  | 676,640
﻿
Current and Long-Term Contracts Outstanding |
﻿ |  |  |  |  |  |  |  |
﻿Current Long-Term Contracts Outstanding at March 31, 2018
﻿Location |  | Commodity |  | End Date |  | Description |  | Approximate Net Volumes
﻿U.S. Onshore |  | Oil |  | Q2 2019 |  | Fixed quantity delivery in Eagle Ford |  | 4,000 BOE/Day
﻿U.S. Onshore |  | Oil |  | Q3 2019 |  | Fixed quantity delivery in Eagle Ford |  | 2,000 BOE/Day
﻿U.S. Onshore |  | Oil |  | Q4 2021 |  | Fixed quantity delivery in Eagle Ford |  | 2018: 19,000 BOE/Day 2019-2021: 13,000 BOE/Day
﻿U.S. Onshore |  | Gas and NGL |  | Q2 2026 |  | Deliveries from dedicated acreage in Eagle Ford |  | As produced
﻿Canada Onshore |  | Gas |  | Q4 2020 |  | Contracts to sell natural gas at Alberta AECO Cdn dollar 2.81/MCF |  | 59 MMCF/Day
﻿Canada Onshore |  | Gas |  | Q4 2020 |  | Contracts to sell natural gas at USD Index pricing |  | 59 MMCF/Day
﻿

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- Definition Tabular disclosure of expected timing for satisfying remaining performance obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130556-203045 + Details
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