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REVENUE FROM CONTRACTS WITH CUSTOMERS | 12 Months Ended
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Dec. 31, 2020
REVENUE FROM CONTRACTS WITH CUSTOMERS |
REVENUE FROM CONTRACTS WITH CUSTOMERS | 14.REVENUE FROM CONTRACTS WITH CUSTOMERS ​ The following table illustrates the disaggregation of our revenues by type, including a reconciliation to our segment presentation as presented in Note 24 – Segment Information. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Illinois |  | ​ |  | ​ |  | Other and |  | ​ |  | ​ | ​ | ​
​ |  | Basin |  | Appalachia |  | Minerals |  | Corporate |  | Elimination |  | Consolidated | ​
​ | ​ | (in thousands) | ​
Year Ended December 31, 2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Coal sales | ​ | $ | 755,208 | ​ | $ | 477,064 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 1,232,272 | ​
Oil & gas royalties | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 42,912 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 42,912 | ​
Transportation revenues | ​ | ​ | 12,817 | ​ | ​ | 8,312 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 21,129 | ​
Other revenues | ​ | ​ | 2,026 | ​ | ​ | 14,954 | ​ | ​ | 229 | ​ | ​ | 25,124 | ​ | ​ | (10,517) | ​ | ​ | 31,816 | ​
Total revenues | ​ | $ | 770,051 | ​ | $ | 500,330 | ​ | $ | 43,141 | ​ | $ | 25,124 | ​ | $ | (10,517) | ​ | $ | 1,328,129 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended December 31, 2019 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Coal sales | ​ | $ | 1,128,588 | ​ | $ | 628,406 | ​ | $ | — | ​ | $ | 22,138 | ​ | $ | (16,690) | ​ | $ | 1,762,442 | ​
Oil & gas royalties | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 51,735 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 51,735 | ​
Transportation revenues | ​ | ​ | 94,686 | ​ | ​ | 4,817 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 99,503 | ​
Other revenues | ​ | ​ | 13,034 | ​ | ​ | 11,166 | ​ | ​ | 1,301 | ​ | ​ | 34,712 | ​ | ​ | (12,173) | ​ | ​ | 48,040 | ​
Total revenues | ​ | $ | 1,236,308 | ​ | $ | 644,389 | ​ | $ | 53,036 | ​ | $ | 56,850 | ​ | $ | (28,863) | ​ | $ | 1,961,720 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended December 31, 2018 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Coal sales | ​ | $ | 1,197,143 | ​ | $ | 635,530 | ​ | $ | — | ​ | $ | 43,393 | ​ | $ | (31,258) | ​ | $ | 1,844,808 | ​
Transportation revenues | ​ | ​ | 106,947 | ​ | ​ | 5,435 | ​ | ​ | — | ​ | ​ | 3 | ​ | ​ | — | ​ | ​ | 112,385 | ​
Other revenues | ​ | ​ | 16,999 | ​ | ​ | 3,000 | ​ | ​ | — | ​ | ​ | 38,096 | ​ | ​ | (12,431) | ​ | ​ | 45,664 | ​
Total revenues | ​ | $ | 1,321,089 | ​ | $ | 643,965 | ​ | $ | — | ​ | $ | 81,492 | ​ | $ | (43,689) | ​ | $ | 2,002,857 | ​
​ The following table illustrates the amount of our transaction price for all current coal supply contracts allocated to performance obligations that are unsatisfied or partially unsatisfied as of December 31, 2020 and disaggregated by segment and contract duration. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2024 and | ​ | ​ | ​
​ |  | 2021 |  | 2022 |  | 2023 |  | Thereafter |  | Total |
​ | ​ | (in thousands) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Illinois Basin coal revenues | ​ | $ | 653,208 | ​ | $ | 253,654 | ​ | $ | 187,570 | ​ | $ | 140,750 | ​ | $ | 1,235,182 | ​
Appalachia coal revenues | ​ | ​ | 318,984 | ​ | ​ | 95,471 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 414,455 | ​
Total coal revenues (1) | ​ | $ | 972,192 | ​ | $ | 349,125 | ​ | $ | 187,570 | ​ | $ | 140,750 | ​ | $ | 1,649,637 | ​
(1) Coal revenues generally consists of consolidated revenues excluding our Minerals segment.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045 + Details
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