Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
CURRENT ASSETS
Cash and equivalents	$ 11,224,865	$ 22,734,047
Investments	10,080,608	0
Accounts receivable:
Production	1,014,946	572,502
Joint venture partners	3,366	4,151
Employees' notes receivable	41,000	35,000
Other	52,831	45,838
Total current assets	22,417,616	23,391,538
PROPERTY AND EQUIPMENT
Proved properties (successful efforts accounting method)	181,447,571	181,293,110
Pipeline and support equipment	682,135	631,757
Corporate and other	2,116,482	2,114,844
Gross property and equipment	184,246,188	184,039,711
Less accumulated depreciation, depletion, amortization and write down	173,979,881	169,093,931
Net property and equipment	10,266,307	14,945,780
OTHER ASSETS
Employees' notes receivable	46,045	89,437
Other	176,558	176,442
Total other assets	222,603	265,879
TOTAL ASSETS	32,906,526	38,603,197
CURRENT LIABILITIES
Accounts payable	1,703,441	1,839,816
Accrued expenses	1,137,290	1,130,772
Total current liabilities	2,840,731	2,970,588
DEFERRED INCOME TAXES	74,000	74,000
JOINT VENTURE PARTNER ADVANCES	1,053,582	1,004,953
ASSET RETIREMENT OBLIGATIONS	16,740,630	16,393,560
COMMITMENTS AND CONTINGENCIES
LIMITED PARTNERS' EQUITY, SUBJECT TO REPURCHASE RIGHT
Authorized - 8,000,000 Units Issued and outstanding - 5,587,616	12,052,848	17,944,611
GENERAL PARTNER'S EQUITY	144,735	215,485
Total partners' equity	12,197,583	18,160,096
TOTAL LIABILITIES AND PARTNERS' EQUITY	$ 32,906,526	$ 38,603,197