Balance Sheet (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash	$ 0	$ 0
Receivables:
Trade	36,116	42,143
Affiliated companies	22	18
Advances to affiliate	225,128	180,400
Other	487	970
Materials and supplies	9,972	10,046
Exchange gas due from others	2,563	4,581
Prepayments and other	3,440	8,591
Total current assets	277,728	246,749
PROPERTY, PLANT AND EQUIPMENT, at cost	3,573,003	3,457,982
Less-Accumulated depreciation and amortization	1,661,067	1,596,369
Total property, plant and equipment, net	1,911,936	1,861,613
OTHER ASSETS:
Deferred charges	853	1,277
Right-of-use assets	17,491	0
Regulatory assets	22,683	23,992
Total other assets	41,027	25,269
Total assets	2,230,691	2,133,631
Payables:
Trade	34,897	12,839
Affiliated companies	9,141	26,532
Accrued liabilities:
Taxes, other than income taxes	16,251	11,496
Interest	12,019	5,505
Exchange gas due to others	1,232	11,660
Customer advances	1,018	788
Other	6,195	7,386
Total current liabilities	80,753	76,206
LONG-TERM DEBT	576,807	576,168
OTHER NONCURRENT LIABILITIES:
Asset retirement obligations	89,944	69,350
Regulatory liabilities	314,891	290,430
Lease liability	16,187	0
Other	884	835
Total other noncurrent liabilities	421,906	360,615
CONTINGENT LIABILITIES AND COMMITMENTS (Note 5)
MEMBER'S EQUITY:
Member's capital	1,073,892	1,073,892
Retained earnings	77,333	46,750
Total member's equity	1,151,225	1,120,642
Total liabilities and member's equity	$ 2,230,691	$ 2,133,631