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v3.20.4

Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents, and restricted cash to amounts shown in the statement of cash flows:
| December 31,
| 2020 |  | 2019 |  | 2018
Cash and Cash Equivalents | $ | 15,617 |  |  | $ | 16,283 |  |  | $ | 17,198 |
Restricted Cash, Current Portion | 735 |  |  | — |  |  | — |
Restricted Cash, Less Current Portion | 5,247 |  |  | — |  |  | — |
Total Cash, Cash Equivalents and Restricted Cash | $ | 21,599 |  |  | $ | 16,283 |  |  | $ | 17,198 |
Restrictions on Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents, and restricted cash to amounts shown in the statement of cash flows:
| December 31,
| 2020 |  | 2019 |  | 2018
Cash and Cash Equivalents | $ | 15,617 |  |  | $ | 16,283 |  |  | $ | 17,198 |
Restricted Cash, Current Portion | 735 |  |  | — |  |  | — |
Restricted Cash, Less Current Portion | 5,247 |  |  | — |  |  | — |
Total Cash, Cash Equivalents and Restricted Cash | $ | 21,599 |  |  | $ | 16,283 |  |  | $ | 17,198 |
Schedule of Allowance for Credit Loss | The following represents the roll forward of the allowance for credit losses for the years ended:
| December 31,
| 2020 |  | 2019
Allowance for Credit Losses - Trade, Beginning of Year | $ | — |  |  | $ | — |
Provision for Expected Credit Losses | 84 |  |  | — |
Allowance for Credit Losses - Trade, End of Period | $ | 84 |  |  | $ | — |
Allowance for Credit Losses - Other Receivables, Beginning of Year | $ | 2,463 |  |  | $ | 2,038 |
Provision for Expected Credit Losses | 2,760 |  |  | 595 |
Write-off of Uncollectible Accounts | (1,975) |  |  | (170) |
Allowance for Credit Losses - Other Receivables, End of Period | $ | 3,248 |  |  | $ | 2,463 |
Schedule of Property, Plant and Equipment, Useful Lives | Depreciation of plant and equipment is calculated on the straight-line method over their estimated useful lives or lease terms, generally as follows:
|  | Years
Buildings and Improvements |  | 10 to 45
Machinery and Equipment |  | 3 to 25
Gathering and Transmission |  | 30 to 40
Leasehold Improvements |  | Life of Lease
| December 31,
Property, Plant and Equipment | 2020 |  | 2019
Intangible Drilling Cost | $ | 4,965,252 |  |  | $ | 4,688,497 |
Gas Gathering Equipment | 2,510,917 |  |  | 2,463,866 |
Proved Gas Properties | 1,253,094 |  |  | 1,208,046 |
Gas Wells and Related Equipment | 1,120,061 |  |  | 1,042,000 |
Unproved Gas Properties | 725,705 |  |  | 755,590 |
Surface Land and Other Equipment | 199,322 |  |  | 226,285 |
Other | 189,645 |  |  | 187,722 |
Total Property, Plant and Equipment | 10,963,996 |  |  | 10,572,006 |
Less: Accumulated Depreciation, Depletion and Amortization | 3,938,451 |  |  | 3,435,431 |
Total Property, Plant and Equipment - Net | $ | 7,025,545 |  |  | $ | 7,136,575 |

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