EXHIBIT 12.1

SOUTHERN CALIFORNIA GAS COMPANY

COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES

AND PREFERRED STOCK DIVIDENDS

(Dollars in millions)

	2001		2002		2003		2004		2005		Three Months Ended March 31, 2006
Fixed Charges and Preferred Stock Dividends:
Interest	$	70	$	47	$	48	$	40	$	50	$	19
Interest portion of annual rentals		3		2		2		2		3		1
Total fixed charges		73		49		50		42		53		20
Preferred stock dividends (1)		2		2		2		2		2		1
Combined fixed charges and preferred stock dividends for purpose of ratio	$	75	$	51	$	52	$	44	$	55	$	21
Earnings:
Pretax income from continuing operations	$	377	$	391	$	360	$	387	$	309	$	86
Total fixed charges (from above)		73		49		50		42		53		20
Less: interest capitalized		—		—		—		—		—		—
Total earnings for purpose of ratio	$	450	$	440	$	410	$	429	$	362	$	106
Ratio of earnings to combined fixed charges and preferred stock dividends		6.00		8.63		7.88		9.75		6.58		5.05
Ratio of earnings to fixed charges		6.16		8.98		8.20		10.21		6.83		5.30

(1) In computing this ratio, “preferred stock dividends” represents the before-tax earnings necessary to pay such dividends, computed at the effective tax rates for the applicable periods