Statements of Income - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating Revenues:
Oil and Gas Sales (Note 2)	$ 7,765,314	$ 6,125,308
Lease Bonuses and Other	562,184	184,282
Total Operating Revenues	8,327,498	6,309,590
Operating Costs and Expenses:
Production	2,391,656	2,190,020
Exploration	195,111	883,593
Depreciation, Depletion, Amortization and Valuation Provisions (Note 10)	2,103,882	2,133,338
General, Administrative and Other	1,679,507	1,620,955
Total Operating Costs and Expenses	6,370,156	6,827,906
Income/(Loss) from Operations	1,957,342	(518,316)
Equity Loss in Investees (Note 7)	(84,484)	(61,976)
Other Income, Net (Note 11)	828,714	683,397
Income Before Income Taxes	2,701,572	103,105
Income Tax Provision/(Benefit) (Notes 2 & 6)	387,880	(582,582)
Net Income	$ 2,313,692	$ 685,687
Per Share Data (Note 2):
Net Income, Basic and Diluted (in dollars per share)	$ 14.69	$ 4.35
Cash Dividends (in dollars per share)	$ 5	$ 5
Weighted Average Shares Outstanding, Basic and Diluted (in shares)	157,458	157,788