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Revenue from Contracts with Customers (Tables) | 6 Months Ended
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Jun. 30, 2018
Revenue from Contracts with Customers [Abstract] |
Disaggregation of Revenue |
﻿ |  |  |  |  |  |  |  |
﻿ |  | Three Months Ended |  | Six Months Ended
﻿ |  | June 30, |  | June 30,
﻿(Thousands of dollars) |  | 2018 |  | 2017 |  | 2018 |  | 2017
﻿Net crude oil and condensate revenue |  |  |  |  |  |  |  |
﻿United States – Onshore | $ | 198,823 |  | 143,684 |  | 381,472 |  | 293,671
﻿ – Offshore |  | 94,393 |  | 47,669 |  | 165,922 |  | 101,481
﻿Canada – Onshore |  | 28,425 |  | 11,658 |  | 49,719 |  | 20,778
﻿ – Offshore |  | 48,316 |  | 38,863 |  | 102,631 |  | 75,877
﻿Malaysia – Sarawak |  | 85,596 |  | 59,758 |  | 162,902 |  | 125,542
﻿ – Block K |  | 101,609 |  | 76,741 |  | 196,181 |  | 164,572
﻿Total crude oil and condensate revenue |  | 557,162 |  | 378,373 |  | 1,058,827 |  | 781,921
﻿ |  |  |  |  |  |  |  |
﻿Net natural gas liquids revenue |  |  |  |  |  |  |  |
﻿United States – Onshore |  | 13,236 |  | 9,077 |  | 25,370 |  | 18,724
﻿ – Offshore |  | 2,920 |  | 1,209 |  | 4,559 |  | 3,125
﻿Canada – Onshore |  | 3,448 |  | 881 |  | 6,916 |  | 1,313
﻿Malaysia – Sarawak |  | 4,002 |  | 3,358 |  | 10,193 |  | 8,541
﻿Total natural gas liquids revenue |  | 23,606 |  | 14,525 |  | 47,038 |  | 31,703
﻿ |  |  |  |  |  |  |  |
﻿Net natural gas revenue |  |  |  |  |  |  |  |
﻿United States – Onshore |  | 6,291 |  | 8,006 |  | 13,062 |  | 15,041
﻿ – Offshore |  | 2,826 |  | 2,718 |  | 5,762 |  | 5,381
﻿Canada – Onshore |  | 28,089 |  | 37,951 |  | 67,683 |  | 77,798
﻿Malaysia – Sarawak |  | 36,997 |  | 35,829 |  | 69,380 |  | 74,418
﻿ – Block K |  | 179 |  | 158 |  | 352 |  | 333
﻿Total natural gas revenue |  | 74,382 |  | 84,662 |  | 156,239 |  | 172,971
﻿Total revenue from contracts with customers |  | 655,150 |  | 477,560 |  | 1,262,104 |  | 986,595
﻿ |  |  |  |  |  |  |  |
﻿Gain (loss) on crude contracts |  | (37,624) |  | 26,861 |  | (67,126) |  | 63,938
﻿Other operating income (loss) |  | 448 |  | 5,191 |  | 8,939 |  | 3,738
﻿Gain (loss) on sale of assets |  | 220 |  | (1,333) |  | (118) |  | 130,648
﻿Total revenue | $ | 618,194 |  | 508,279 |  | 1,203,799 |  | 1,184,919
﻿
Current Long-Term Contracts Outstanding |
﻿ |  |  |  |  |  |  |  |
﻿Current Long-Term Contracts Outstanding at June 30, 2018
﻿Location |  | Commodity |  | End Date |  | Description |  | Approximate 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 |  | 60 MMCF/Day
﻿Canada Onshore |  | Gas |  | Q4 2024 |  | Contracts to sell natural gas at USD Index pricing |  | 30 MMCF/Day
﻿Canada Onshore |  | Gas |  | Q4 2026 |  | Contracts to sell natural gas at USD Index pricing |  | 38 MMCF/Day
﻿

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