CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 278	$ 419
Accounts receivable from oil and gas sales	45	67
Current portion note receivable	47	36
Total current assets	370	522
Oil and natural gas properties (full cost accounting method)
Proved developed and undeveloped oil and gas properties, net of depletion	2,620	2,721
Property and equipment, net of depreciation
Land, buildings and equipment - oil and gas operations	636	661
Other assets (including $124 due from related parties in 2015)	268	301
Total assets	3,894	4,205
Current liabilities
Accounts payable - trade (including $277 and $412 due to related parties in 2018 and 2017)	306	446
Accrued expenses	32	29
Current portion of long term debt	58	81
Total current liabilities	396	556
Long-term debt
Notes payable less current portion	229	243
Asset retirement obligation	2,770	2,770
Total liabilities	3,395	3,569
Stockholders' equity
Preferred stock, Series B	1	1
Common stock, $.01 par value; authorized, 100,000,000 shares; issued and outstanding, 2,036,935 shares at March 31, 2018 and December 31, 2017	22	21
Additional paid-in capital	59,170	59,000
Accumulated deficit	(58,694)	(58,386)
Total Stockholder's equity	499	636
Total liabilities & stockholders' equity	$ 3,894	$ 4,205