Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Organization and Accounting Policies - Average Brent Crude Oil Price (Details)

v3.23.2
Note 1 - Organization and Accounting Policies - Average Brent Crude Oil Price (Details)
3 Months Ended
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