Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
CURRENT ASSETS
Cash and equivalents	$ 10,434,106	$ 10,249,207
Investments	22,404,432	20,372,652
Production accounts receivable	1,534,609	815,419
Other	51,095	79,950
Total current assets	34,424,242	31,517,228
PROPERTY AND EQUIPMENT
Proved properties (successful efforts accounting method)	138,085,861	142,912,812
Pipeline and support equipment	731,040	719,988
Corporate and other	2,111,899	2,093,989
Gross property and equipment	140,928,800	145,726,789
Less accumulated depreciation, depletion, amortization and write down	134,041,133	138,424,885
Net property and equipment	6,887,667	7,301,904
OTHER ASSETS	127,839	131,863
TOTAL ASSETS	41,439,748	38,950,995
CURRENT LIABILITIES
Accounts payable	2,110,567	2,470,720
Accrued expenses	878,193	1,575,935
Total current liabilities	2,988,760	4,046,655
DEFERRED INCOME TAXES	27,900	27,900
OPERATIONAL ADVANCES	2,838,471	2,653,099
ASSET RETIREMENT OBLIGATIONS	14,376,738	14,564,400
COMMITMENTS AND CONTINGENCIES
LIMITED PARTNERS' EQUITY, SUBJECT TO REPURCHASE RIGHT
Authorized - 8,000,000 Units Issued and outstanding - 5,334,473 and 5,441,928 Units, respectively	20,944,436	17,442,684
GENERAL PARTNER'S EQUITY	263,443	216,257
Total partners' equity	21,207,879	17,658,941
TOTAL LIABILITIES AND PARTNERS' EQUITY	$ 41,439,748	$ 38,950,995