Note 2 - Current Liabilities - Components of Accounts Payable and Accrued (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Accounts Payable:
Production and related other	$ 1,739,980	$ 1,522,106
Other	295,929	299,150
Joint venture partner deposits	48,629	48,629
Total accounts payable	2,084,538	1,869,885
Accrued Expenses:
Current portion of asset retirement obligations	196,000	196,000
Other	137,800	55,100
Payroll and retirement plan contributions	137,707	692,083
Drilling	106,100	106,100
Federal, state and local taxes	12,555	35,064
Total accrued expenses	$ 590,162	$ 1,084,347