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v3.23.2

Note 1 - Organization and Accounting Policies - Average Brent Crude Oil Price (Details) | 3 Months Ended
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Jun. 30, 2023 $ / item | Jun. 30, 2023 $ / bbl | Mar. 31, 2023 $ / bbl | Dec. 31, 2022 $ / bbl | Sep. 30, 2022 $ / bbl | Jun. 30, 2022 $ / bbl | Mar. 31, 2022 $ / bbl
Average sales price (in USD per Barrel of Oil) | 78 | 77.99 | 81.07 | 88.72 | 100.71 | 113.84 | 100.87

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- Definition Sales price per unit of oil and gas produced. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1204 -Paragraph (b) -Subparagraph (1) -Publisher SEC + Details
Name: | srt_AverageSalesPrices
Namespace Prefix: | srt_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | duration