Southwest Gas 10-Q 2007 Q2 Quarterly report

EXHIBIT 12.01

SOUTHWEST GAS CORPORATION
COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
(Thousands of dollars)

	For the Twelve Months Ended
	Jun 30,		December 31,
	2007		2006		2005		2004		2003		2002
1. Fixed charges:
A) Interest expense	$	92,747	$	92,878	$	87,687	$	84,138	$	78,724	$	79,586
B) Amortization		2,877		3,467		3,700		3,059		2,752		2,278
C) Interest portion of rentals		6,758		6,412		6,333		6,779		6,665		8,846
D) Preferred securities distributions		--		--		--		--		4,015		5,475
Total fixed charges	$	102,382	$	102,757	$	97,720	$	93,976	$	92,156	$	96,185
2. Earnings (as defined):
E) Pretax income from
continuing operations	$	132,214	$	128,357	$	68,435	$	87,012	$	55,384	$	65,382
Fixed Charges (1. above)		102,382		102,757		97,720		93,976		92,156		96,185
Total earnings as defined	$	234,596	$	231,114	$	166,155	$	180,988	$	147,540	$	161,567
		2.29		2.25		1.70		1.93		1.60		1.68