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Petroleum and Natural Gas Sales | 12 Months Ended
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Dec. 31, 2020
Disclosure of revenue from contracts with customers [Abstract] |
Petroleum and Natural Gas Sales | PETROLEUM AND NATURAL GAS SALES The Company's petroleum and natural gas sales from contracts with customers for each reportable segment is set forth in the following table.
| Years Ended December 31
| 2020 | 2019
| Canada | U.S. | Total | Canada | U.S. | Total
Light oil and condensate | $ | 296,125 |  | $ | 327,460 |  | $ | 623,585 |  | $ | 538,487 |  | $ | 600,163 |  | $ | 1,138,650 |
Heavy oil | 236,235 |  | — |  | 236,235 |  | 500,187 |  | — |  | 500,187 |
NGL | 6,037 |  | 34,845 |  | 40,882 |  | 8,430 |  | 60,647 |  | 69,077 |
Natural gas sales | 33,344 |  | 41,431 |  | 74,775 |  | 30,620 |  | 67,385 |  | 98,005 |
Total petroleum and natural gas sales | $ | 571,741 |  | $ | 403,736 |  | $ | 975,477 |  | $ | 1,077,724 |  | $ | 728,195 |  | $ | 1,805,919 |
Included in accounts receivable at December 31, 2020 is $81.3 million (December 31, 2019 - $138.0 million) of accrued petroleum and natural gas sales related to deliveries for periods ended prior to the reporting date.

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