Supplementary Information On Natural Gas, Oil And NGL Reserves (Summary of Proved Developed and Undeveloped Reserves) (Details)	Dec. 31, 2023 bbl Mcf	Dec. 31, 2022 Mcf bbl	Sep. 30, 2022 Mcf bbl
Natural Gas [Member]
Reserve Quantities [Line Items]
Proved Developed Reserves (Volume) | Mcf	44,479,988	48,596,944	50,304,185
Proved Undeveloped Reserves (Volume) | Mcf	11,508,969	12,608,549	11,933,021
Oil [Member]
Reserve Quantities [Line Items]
Proved Developed Reserves (Volume)	937,465	1,253,838	1,275,853
Proved Undeveloped Reserves (Volume)	134,497	118,168	106,924
NGL [Member]
Reserve Quantities [Line Items]
Proved Developed Reserves (Volume)	1,362,944	1,660,439	1,698,046
Proved Undeveloped Reserves (Volume)	99,712	48,136	64,637