XML 31 R22.htm IDEA: XBRL DOCUMENT v3.21.1

Note 6 - Oil and Gas Leases (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Results of Operations for Oil and Gas Producing Activities Disclosure [Table Text Block]

		2020				2019
Gross revenues
Royalty interests		$	257,247			$	500,426
Lease fees			5,882				22,901
			263,129				523,327
Production costs			29,379				57,454
Results before income tax expense			233,750				465,873
Estimated income tax expense			67,788				135,103
Results of operations from producing activities excluding corporate overhead		$	165,962			$	330,770

Oil and Gas, Average Sale Price and Production Cost [Table Text Block]

		2020				2019
Net gas produced (MCF)			12,376				32,107
Net oil produced (Bbl)			5,043				6,272

X

- Definition

Tabular disclosure of oil and gas sale price and production cost, including, but not limited to, average sale price and production cost per unit.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1204

+ Details

Name:	srt_OilAndGasNetProductionAverageSalesPriceAndAverageProductionCostsDisclosureTextBlock
Namespace Prefix:	srt_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the results of operations for oil and gas producing activities for the year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 55
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=34713648&loc=d3e63071-109448

+ Details

Name:	us-gaap_ResultsOfOperationsForOilAndGasProducingActivitiesDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration