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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Cash Flows from Operating Activities: |  |
Net (Loss) Income | $ (2,363) | $ 3,659
Adjustments to reconcile net (loss) income to net cash provided by operating activities: |  |
Depreciation, depletion, amortization and accretion on discounted liabilities | 28,176 | 36,156
Gain on sale of properties | (15,836) | (4,574)
Unrealized loss (gain) on derivative instruments | 190 | 2,777
Provision for deferred income taxes | 443 | 3,096
Changes in assets and liabilities: |  |
Accounts receivable | 7,139 | 601
Due to related parties | 38 | (5)
Prepaid expenses and other assets | 58 | 15
Accounts payable | (1,417) | (2,919)
Accrued liabilities | (49) | (11,595)
Net Cash Provided by Operating Activities | 16,379 | 27,211
Cash Flows from Investing Activities: |  |
Capital expenditures, including exploration expense | (10,523) | (18,046)
Proceeds from sale of properties and equipment | 10,862 | 4,579
Net Cash (Used in) provided by Investing Activities | 339 | (13,467)
Cash Flows from Financing Activities: |  |
Purchase of stock for treasury | (710) | (5,488)
Purchase of non-controlling interests | (742) | (499)
Increase in long-term bank debt and other long-term obligations | 6,755 | 25,000
Repayment of long-term bank debt and other long-term obligations | (21,983) | (37,745)
Distribution to non-controlling interest | (57) | (312)
Net Cash (used in) provided by Financing Activities | (16,737) | (19,044)
Cash and Cash Equivalents Period Decrease | (19) | (5,300)
Cash and Cash Equivalents at the Beginning of the Year | 1,015 | 6,315
Cash and Cash Equivalents at the End of the Year | 996 | 1,015
Supplemental Disclosures: |  |
Income taxes paid during the year | 1 | 65
Interest paid during the year | 2,052 | 3,659
Purchase of non-controlling interest | 36 | $ 111
Distribution of non-controlling interest in liquidated partnerships | $ 1,550 |

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