Regulation (Tables)

12 Months Ended

Dec. 31, 2011

Public Utilities, General Disclosures [Abstract]

Refund Fuel Cost Over Recoveries

The fuel cost over-recovery periods represent the months in which the over-recoveries took place and the refund periods represent the billing month(s) in which customers received the refund amounts shown, including interest:

Docket No.	Date Filed	Date Approved	Recovery Period	Refund Period	Refund Amount (In thousands)
37788	December 17, 2009	February 11, 2010	September – November 2009	February 2010	$	11,800
38253	May 12, 2010	July 15, 2010	December 2009 – March 2010	July – August 2010	11,100
38802	October 20, 2010	December 16, 2010	April – September 2010	December 2010	12,800
39159	February 18, 2011	May 3, 2011	October – December 2010	April 2011	11,800

Revised Fixed Fuel Factor

The Company has filed the following petitions with the PUCT to revise its fixed fuel factor pursuant to the fuel factor formula authorized in PUCT Docket No. 37690:

Docket No.	Date Filed	Date Approved	Increase (Decrease) in Fuel Factor		Effective Billing Month
38895	November 23, 2010	January 6, 2011	(14.7	)%	January 2011
39599	July 15, 2011	August 30, 2011	9.4	%	August 2011