Balance Sheets - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016	[1]
Current Assets
Cash and cash equivalents		$ 5.9	$ 7.6
Customer receivables (less allowance for doubtful accounts of $1.5 and $1.7 )		35.7	163.7
Receivable from affiliates		15.7	0.6
Inventories at lower of average cost or market:
Gas stored underground		58.9	49.3
Materials and supplies		28.6	27.6
Regulatory assets		47.3	9.6
Other		4.3	3.7
Total current assets		196.4	262.1
Property, Plant and Equipment
Property, plant and equipment		2,976.1	2,883.0
Accumulated depreciation and amortization		(739.5)	(737.6)
Total property, plant and equipment, net		2,236.6	2,145.4
Deferred Charges and Other Assets
Receivable from affiliates		101.0	87.8
Other noncurrent assets		11.6	11.2
Total deferred charges and other assets		112.6	99.0
Total assets		2,545.6	2,506.5
Current Liabilities
Securities due within one year		134.5	14.5
Short-term debt		225.0	200.0
Affiliated current borrowings		0.0	48.0
Accounts payable and accrued expenses		92.9	117.2
Accounts payable to affiliates		33.5	43.5
Customer advances		24.0	27.9
Other current liabilities		8.3	8.2
Total current liabilities		518.2	459.3
Long-Term Debt		496.6	616.3
Deferred Credits and Other Liabilities
Deferred income taxes		533.8	475.8
Regulatory liabilities		193.1	189.1
Payables to affiliates		12.0	13.0
Other noncurrent liabilities		96.8	95.4
Total deferred credits and other liabilities		835.7	773.3
Total liabilities		1,850.5	1,848.9
Commitments and Contingencies (see Note 10)
Equity
Common stock - par value $2.50	[2]	23.0	23.0
Additional paid-in capital		272.5	272.5
Retained earnings		399.6	362.1
Total common shareholder's equity		695.1	657.6
Total liabilities and shareholder's equity		$ 2,545.6	$ 2,506.5

[1] Questar Gas' Balance Sheet at December 31, 2016 has been derived from the audited Balance Sheet at that date.

[2] 50.0 million shares authorized; 9.2 million shares outstanding at September 30, 2017 and December 31, 2016.