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Exhibit 12.01

Questar Gas Company
Ratio of Earnings to Fixed Charges
(Unaudited)

	12 months ended December 31,
	1998		1999		2000		2001		2002
	(Dollars in Thousands)
Earnings
Income before income taxes	$	41,224	$	28,231	$	37,052	$	39,763	$	50,188
Plus debt expense		19,792		20,062		21,041		23,777		22,495
Plus allowance for borrowed funds used during construction		796		358		909		476		212
Plus interest portion of rental expense		648		647		722		734		770
	$	62,460	$	49,298	$	59,724	$	64,750	$	73,665
Fixed Charges
Debt expense	$	19,792	$	20,062	$	21,041	$	23,777	$	22,495
Plus allowance for borrowed funds used during construction		796		358		909		476		212
Plus interest portion of rental expense		648		647		722		734		770
	$	21,236	$	21,067	$	22,672	$	24,987	$	23,477
Ratio of Earnings to Fixed Charges		2.94		2.34		2.63		2.59		3.14

(1)

For purposes of this presentation, earnings represent income before income taxes and fixed charges. Fixed charges consist of total interest charges, amortization of debt issuance costs, the losses from reacquiring debt, and the interest portion of rental costs, estimated at 50% for purposes of this calculation.

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Exhibit 12.01