EXHIBIT 12.1

MIDAMERICAN ENERGY COMPANY

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

AND COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

PLUS PREFERRED STOCK DIVIDEND REQUIREMENTS

(In Thousands)

(Unaudited)

	Three Months Ended March 31, 2007
			Twelve Months Ended December 31,
			2006		2005		2004		2003		2002
Net income from continuing operations	$	92,110	$	266,676	$	221,297	$	210,455	$	188,597	$	175,821
Add (Deduct):
Total income taxes		42,061		118,270		114,856		102,155		131,261		120,230
Interest on long-term debt		25,738		93,368		80,485		71,949		72,207		71,401
Other interest charges		3,489		11,846		8,409		5,728		3,813		3,412
Preferred stock dividends of subsidiary trust		—		—		—		—		—		1,574
Interest on leases		28		123		138		155		108		201
		71,316		223,607		203,888		179,987		207,389		196,818
Earnings available for fixed charges		163,426		490,283		425,185		390,442		395,986		372,639
Fixed Charges:
Interest on long-term debt		25,738		93,368		80,485		71,949		72,207		71,401
Other interest charges		3,489		11,846		8,409		5,728		3,813		3,412
Preferred stock dividends of subsidiary trust		—		—		—		—		—		1,574
Interest on leases		28		123		138		155		108		201
Total fixed charges		29,255		105,337		89,032		77,832		76,128		76,588
Ratio of earnings to fixed charges		5.59		4.65		4.78		5.02		5.20		4.87
Preferred stock dividends	$	312	$	1,247	$	1,247	$	1,245	$	1,416	$	2,933
Ratio of net income before income taxes to net income		1.4566		1.4435		1.5190		1.4854		1.6960		1.6838
Preferred stock dividend requirements before income tax		454		1,800		1,894		1,849		2,402		4,939
Fixed charges plus preferred stock dividend requirements		29,709		107,137		90,926		79,681		78,530		81,527
Ratio of earnings to fixed charges plus preferred stock dividend requirements (pre-income tax basis)		5.50		4.58		4.68		4.90		5.04		4.57