SUPPLEMENTAL OIL AND GAS DISCLOSURES (Schedule Of Proved Developed And Undeveloped Oil And Gas Reserve Quantities) (Details) bbl in Thousands, Mcf in Thousands, MBoe in Thousands	12 Months Ended
	Dec. 31, 2022 MBoe bbl Mcf	Dec. 31, 2021 MBoe bbl Mcf
Proved developed and undeveloped reserves:
Beginning of year (MBoe) | MBoe	67,318	47,541
Revision of previous estimate (MBoe) | MBoe	6,840	28,685
Extension and discovery (MBoe) | MBoe	747	471
Infill reserves in existing proved fields (MBoe) | MBoe	368	1,366
Purchase of mineral in place (MBoe) | MBoe	0	1
Production (MBoe) | MBoe	(7,464)	(9,074)
Sales (MBoe) | MBoe	(4,593)	(1,672)
End of year (MBoe) | MBoe	63,215	67,318
Proved developed reserves:
Beginning of year (MBoe) | MBoe	67,318
End of year (MBoe) | MBoe	63,215	67,318
Proved undeveloped reserves
Beginning of year (MBoe) | MBoe	0
End of year (MBoe) | MBoe	0	0
Oil (bbls)
Proved developed and undeveloped reserves:
Beginning of year	9,019	8,267
Revision of previous estimates	73	2,651
Extensions and discoveries	189	218
Infill reserves in existing proved fields	54	713
Purchases of minerals in place	0	0
Production	(1,281)	(1,615)
Sales	(373)	(1,215)
End of year	7,681	9,019
Proved developed reserves:
Beginning of year	9,019
End of year	7,681	9,019
Proved undeveloped reserves
Beginning of year	0
End of year	0	0
Natural Gas Liquids (bbls)
Proved developed and undeveloped reserves:
Beginning of year	21,525	15,208
Revision of previous estimates	1,884	8,723
Extensions and discoveries	133	93
Infill reserves in existing proved fields	18	293
Purchases of minerals in place	0	0
Production	(2,148)	(2,624)
Sales	(1,280)	(169)
End of year	20,132	21,525
Proved developed reserves:
Beginning of year	21,525
End of year	20,132	21,525
Proved undeveloped reserves
Beginning of year	0
End of year	0	0
Natural gas (Mcf)
Proved developed and undeveloped reserves:
Beginning of year | Mcf	220,640	144,391
Revision of previous estimates | Mcf	29,295	103,866
Extensions and discoveries | Mcf	2,551	961
Infill reserves in existing proved fields | Mcf	1,773	2,158
Purchases of minerals in place | Mcf	0	0
Production | Mcf	(24,211)	(29,012)
Sales | Mcf	(17,639)	(1,725)
End of year | Mcf	212,409	220,640
Proved developed reserves:
Beginning of year | Mcf	220,640
End of year | Mcf	212,409	220,640
Proved undeveloped reserves
Beginning of year | Mcf	0
End of year | Mcf	0	0