| Revenue [Policy Text Block] |
2.REVENUE
Accrued unbilled natural gas sales revenues at June 30, 2020 and December 31, 2019, were $49.0 million and $109.7 million, respectively, and are included in accounts receivable on our consolidated balance sheets.
The following table sets forth our revenues disaggregated by source for the periods indicated: | | | | | | | | | | | | | | | | | | | | | Three Months Ended | | Six Months Ended | | | | June 30, | | June 30, | | | | 2020 | | 2019 | | 2020 | | 2019 | | | | (Thousands of dollars) | | Natural gas sales to customers | | $ | 243,308 |
| | $ | 258,560 |
| | $ | 724,026 |
| | $ | 880,052 |
| | Transportation revenues | | 24,481 |
| | 23,991 |
| | 58,238 |
| | 59,019 |
| | Miscellaneous revenues | | 3,120 |
| | 5,428 |
| | 7,590 |
| | 10,856 |
| | Total revenues from contracts with customers | | 270,909 |
| | 287,979 |
| | 789,854 |
| | 949,927 |
| | Other revenues - natural gas sales related | | (3 | ) | | 207 |
| | 6,544 |
| | (2,737 | ) | | Other revenues | | 2,381 |
| | 2,374 |
| | 5,057 |
| | 4,370 |
| | Total other revenues | | 2,378 |
| | 2,581 |
| | 11,601 |
| | 1,633 |
| | Total revenues | | $ | 273,287 |
| | $ | 290,560 |
| | $ | 801,455 |
| | $ | 951,560 |
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