Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
CURRENT ASSETS
Cash and equivalents	$ 11,685,824	$ 11,224,865
Investments	10,109,615	10,080,608
Accounts receivable:
Production	1,342,975	1,014,946
Joint venture partners		3,366
Employees' notes receivable	42,000	41,000
Other	10,850	52,831
Total current assets	23,191,264	22,417,616
PROPERTY AND EQUIPMENT
Proved properties (successful efforts accounting method)	181,223,101	181,447,571
Pipeline and support equipment	682,135	682,135
Corporate and other	2,116,482	2,116,482
Gross property and equipment	184,021,718	184,246,188
Less accumulated depreciation, depletion, amortization and write down	173,967,370	173,979,881
Net property and equipment	10,054,348	10,266,307
OTHER ASSETS
Employees' notes receivable	6,328	46,045
Other	184,398	176,558
Total other assets	190,726	222,603
TOTAL ASSETS	33,436,338	32,906,526
CURRENT LIABILITIES
Accounts payable	1,695,307	1,703,441
Accrued expenses	613,652	1,137,290
Total current liabilities	2,308,959	2,840,731
DEFERRED INCOME TAXES	74,000	74,000
JOINT VENTURE PARTNER ADVANCES	1,258,024	1,053,582
ASSET RETIREMENT OBLIGATIONS	16,838,430	16,740,630
COMMITMENTS AND CONTINGENCIES
LIMITED PARTNERS' EQUITY, SUBJECT TO REPURCHASE RIGHT
Authorized - 8,000,000 Units Issued and outstanding - 5,587,616 Units	12,803,180	12,052,848
GENERAL PARTNER'S EQUITY	153,745	144,735
Total partners' equity	12,956,925	12,197,583
TOTAL LIABILITIES AND PARTNERS' EQUITY	$ 33,436,338	$ 32,906,526