Southwest Gas 10-Q 2009 Q3 Quarterly report

											Exhibit 12.01
SOUTHWEST GAS CORPORATION
COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
(Thousands of dollars)
	For the Twelve Months Ended
	Sep 30,		December 31,
	2009		2008		2007		2006		2005		2004
1. Fixed charges:
A) Interest expense	$	83,838	$	90,403	$	94,035	$	92,878	$	87,687	$	84,138
B) Amortization		2,211		2,880		2,783		3,467		3,700		3,059
C) Interest portion of rentals		6,997		7,802		7,952		6,412		6,333		6,779
Total fixed charges	$	93,046	$	101,085	$	104,770	$	102,757	$	97,720	$	93,976
2. Earnings (as defined):
D) Pretax income from
continuing operations	$	112,895	$	101,808	$	131,024	$	128,357	$	68,435	$	87,012
Fixed Charges (1. above)		93,046		101,085		104,770		102,757		97,720		93,976
Total earnings as defined	$	205,941	$	202,893	$	235,794	$	231,114	$	166,155	$	180,988
		2.21		2.01		2.25		2.25		1.70		1.93