Exhibit 12.1

WGL HOLDINGS, INC. AND SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

	Twelve Months Ended September 30,
($ in thousands)	2011		2010		2009		2008		2007
FIXED CHARGES:
Interest Expense	$	40,544	$	39,343	$	43,649	$	46,707	$	48,333
Amortization of Debt Premium, Discount and Expense		414		434		413		450		562
Interest Component of Rentals		1,661		1,441		1,539		1,609		1,600
Total Fixed Charges	$	42,619	$	41,218	$	45,601	$	48,766	$	50,495
EARNINGS:
Net Income	$	118,370	$	111,205	$	121,693	$	117,843	$	109,220
Add:
Income Taxes		87,150		73,556		77,274		69,491		70,137
Loss on Equity Method Investments		545		—		—		—		—
Total Fixed Charges		42,619		41,218		45,601		48,766		50,495
Total Earnings	$	248,684	$	225,979	$	244,568	$	236,100	$	229,852
Ratio of Earnings to Fixed Charges		5.8		5.5		5.4		4.8		4.6