Regulated Operating Expenses (Tables)

6 Months Ended

Jun. 30, 2012

Regulated Operating Expenses

Schedule of regulated operating expenses

	Three Months Ended		Three Months Ended			Six Months Ended		Six Months Ended		Twelve Months Ended		Twelve Months Ended
	2012		2011			2012		2011		2012		2011
Electric transmission and distribution expense	$	4,264	$	3,418		$	8,372	$	7,240	$	16,493	$	14,265
Natural gas transmission and distribution expense	664		579			1,316		1,141		2,561		2,289
Power operation expense (other than fuel)	3,604		2,469			7,399		5,147		15,529		10,807
Customer accounts and assistance expense	2,584		2,395			5,018		4,931		10,297		10,632
Employee pension expense (1)	2,539		1,975			5,074		3,819		10,060		6,967
Employee healthcare plan (1)	2,324		1,716			4,562		3,337		8,664		7,022
General office supplies and expense	2,523		2,236			5,275		5,135		10,298		11,338
Administrative and general expense	3,573		3,057			7,792		6,704		15,384		12,966
Allowance for uncollectible accounts	753		1,242			1,345		1,324		3,446		3,520
Miscellaneous expense	16		(2		)	39		23		102		98
Total	$	22,844	$	19,085		$	46,192	$	38,801	$	92,834	$	79,904

(1) Does not include capitalized portion of costs, but reflects the GAAP expensed cost plus or minus costs deferred to and amortized from a regulatory asset and/or a regulatory liability for Missouri, Kansas and Oklahoma jurisdictions.