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Revenue Recognition - Accounts receivable (Details) - USD ($) | Jun. 30, 2021 | Dec. 31, 2020
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Disaggregation of Revenue [Line Items] |  |
Accounts receivable | $ 3,528,376 | $ 3,917,288
Natural gas and oil sales |  |
Disaggregation of Revenue [Line Items] |  |
Accounts receivable | 2,067,528 | 2,107,910
Joint interest billing |  |
Disaggregation of Revenue [Line Items] |  |
Accounts receivable | 87,714 | 69,495
Gas gathering and compression revenue |  |
Disaggregation of Revenue [Line Items] |  |
Accounts receivable | 1,372,708 | 1,736,043
Other |  |
Disaggregation of Revenue [Line Items] |  |
Accounts receivable | $ 426 | $ 3,840

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