Balance Sheet (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current Assets:
Cash	$ 0	$ 0
Receivables:
Other	9,332	10,572
Transportation and exchange gas receivables	6,228	2,803
Inventories:
Materials and supplies, at average cost	45,127	42,904
Gas in storage, last-in, first-out	2,590	0
Gas available for customer nomination, at average cost	34,477	39,832
Gas in storage, at original cost	771	752
Regulatory assets	81,553	87,198
Other	9,240	11,835
Total current assets	1,447,562	1,809,141
Property, plant and equipment	19,810,047	19,293,599
Less-Accumulated depreciation and amortization	6,064,369	5,963,213
Total property, plant and equipment, net	13,745,678	13,330,386
Other Assets:
Regulatory assets	314,134	299,099
Right-of-use assets	50,044	53,255
Other	310,884	296,408
Total other assets	675,062	648,762
Total assets	15,868,302	15,788,289
Payables:
Trade	321,068	263,363
Cash overdrafts	32,209	15,374
Transportation and exchange gas payables	4,258	6,433
Accrued liabilities:
Interest	75,886	76,000
Asset retirement obligations	105,355	95,540
Regulatory liabilities	53,408	49,259
Taxes, other than income taxes	29,423	28,738
Customer deposits	32,706	35,046
Customer advances	21,374	17,183
Other	26,369	26,795
Long-term debt due within one year	33,164	31,718
Total current liabilities	774,109	700,266
Long-Term Debt	5,215,796	5,229,450
Other Long-Term Liabilities:
Regulatory liabilities	961,976	955,628
Asset retirement obligations	519,307	523,741
Contract liabilities	168,051	173,332
Lease liability	53,045	56,353
Other	11,619	11,920
Total other long-term liabilities	1,713,998	1,720,974
Contingent Liabilities and Commitments (Note 3)
Member’s Equity:
Member’s capital	5,088,499	5,088,499
Retained earnings	3,075,900	3,049,100
Total member’s equity	8,164,399	8,137,599
Total liabilities and member’s equity	15,868,302	15,788,289
Related Party [Member]
Receivables:
Advances to affiliate	1,026,681	1,352,927
Trade	9,174	9,559
Affiliates	9,174	9,559
Payables:
Affiliates	38,889	54,817
Nonrelated Party [Member]
Receivables:
Trade	222,389	250,759
Affiliates	$ 222,389	$ 250,759