Consolidated Statements Of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating activities
Net income (loss) from continuing operations	$ (436,000)	$ 442,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion, and amortization	716,000	795,000
Amortization of loan fees-interest expense	5,000	4,000
Accretion of asset retirement obligation	132,000	141,000
Gain on asset sales	(45,000)	(33,000)
Compensation and services paid in stock / stock options	17,000	23,000
Changes in assets and liabilities:
Accounts receivable	41,000	96,000
Inventory, prepaid expense, and other assets	(68,000)	(28,000)
Accounts payable	63,000	(58,000)
Accrued liabilities	(123,000)	(64,000)
Settlement on asset retirement obligation	(76,000)	(25,000)
Net cash provided by operating activities - continuing operations	226,000	1,293,000
Net cash provided by operating activities - discontinued operations		44,000
Net cash provided by operating activities	226,000	1,337,000
Investing activities
Additions to oil and gas properties	(437,000)	(1,011,000)
Proceeds from sale of oil and gas properties	56,000	7,000
Additions to other property and equipment	(2,000)	(27,000)
Proceeds from sale of other property and equipment	150,000	8,000
Net cash provided by investing activities - continuing operations	(233,000)	(1,023,000)
Net cash provided by investing activities - discontinued operations		2,658,000
Net cash provided by (used in) investing activities	(233,000)	1,635,000
Financing activities
Proceeds from borrowings		100,000
Repayment of borrowings	(53,000)	(142,000)
Net cash used in financing activities - continuing operations	(53,000)	(42,000)
Net cash used in financing activities	(53,000)	(42,000)
Net change in cash and cash equivalents	(60,000)	2,930,000
Cash and cash equivalents, beginning of period	3,115,000	185,000
Cash and cash equivalents, end of period	3,055,000	3,115,000
Supplemental cash flow information:
Cash interest payments	5,000
Supplemental non-cash investing and financing activities:
Financed company vehicles	57,000	136,000
Asset retirement obligations incurred	12,000	7,000
Revisions to asset retirement obligations	(187,000)	(198,000)
Capital expenditures included in accounts payable and accrued liabilities	$ 88,000	$ 9,000