Rate Matters (Tables)

3 Months Ended

Mar. 31, 2013

Regulatory Assets Not Yet Being Recovered

Regulatory Assets Not Yet Being Recovered
			March 31,		December 31,
			2013		2012
			(in millions)
	Noncurrent Regulatory Assets
	Regulatory assets not yet being recovered pending future proceedings:
	Regulatory Assets Currently Earning a Return
		Storm Related Costs	$	23	$	23
		Economic Development Rider		13		13
		Other Regulatory Assets Not Yet Being Recovered		2		1
	Regulatory Assets Currently Not Earning a Return
		Storm Related Costs		141		172
		Medicare Part D		56		-
		Virginia Environmental Rate Adjustment Clause		27		29
		Ormet Delayed Payment Arrangement		20		5
		Mountaineer Carbon Capture and Storage Product Validation Facility		14		14
		Litigation Settlement		-		11
		Deferred Wind Power Costs		5		5
		Other Regulatory Assets Not Yet Being Recovered		32		31
	Total Regulatory Assets Not Yet Being Recovered		$	333	$	304

Appalachian Power Co [Member]

Regulatory Assets Not Yet Being Recovered

			APCo
			March 31,		December 31,
			2013		2012
Noncurrent Regulatory Assets			(in thousands)
Regulatory assets not yet being recovered pending future proceedings:
Regulatory Assets Currently Not Earning a Return
	Storm Related Costs		$	63,685	$	94,458
	Virginia Environmental Rate Adjustment Clause			26,977		29,320
	Mountaineer Carbon Capture and Storage
		Product Validation Facility		14,155		14,155
	Dresden Plant Operating Costs			8,760		8,758
	Medicare Part D			7,066		-
	Deferred Wind Power Costs			5,112		5,143
	Transmission Agreement Phase-In			3,129		2,992
	Mountaineer Carbon Capture and Storage
		Commercial Scale Facility		1,287		1,287
	Other Regulatory Assets Not Yet Being Recovered			2,646		1,447
Total Regulatory Assets Not Yet Being Recovered			$	132,817	$	157,560

Indiana Michigan Power Co [Member]

Regulatory Assets Not Yet Being Recovered

			I&M
			March 31,		December 31,
			2013		2012
Noncurrent Regulatory Assets			(in thousands)
Regulatory assets not yet being recovered pending future proceedings:
Regulatory Assets Currently Not Earning a Return
	Medicare Part D		$	12,242	$	-
	Litigation Settlement			-		11,098
	Mountaineer Carbon Capture and Storage
		Commercial Scale Facility		-		1,380
	Under-Recovered Capacity Costs			2,724		-
	Other Regulatory Asset Not Yet Being Recovered			1,094		786
Total Regulatory Assets Not Yet Being Recovered			$	16,060	$	13,264

Ohio Power Co [Member]

Regulatory Assets Not Yet Being Recovered

		OPCo
		March 31,		December 31,
		2013		2012
Noncurrent Regulatory Assets		(in thousands)
Regulatory assets not yet being recovered pending future proceedings:
Regulatory Assets Currently Earning a Return
	Economic Development Rider	$	13,373	$	13,213
Regulatory Assets Currently Not Earning a Return
	Storm Related Costs		59,758		61,828
	Ormet Delayed Payment Arrangement		20,000		5,453
	Medicare Part D		12,386		-
	Other Regulatory Assets Not Yet Being Recovered		469		30
Total Regulatory Assets Not Yet Being Recovered		$	105,986	$	80,524

Public Service Co Of Oklahoma [Member]

Regulatory Assets Not Yet Being Recovered

		PSO
		March 31,		December 31,
		2013		2012
Noncurrent Regulatory Assets		(in thousands)
Regulatory assets not yet being recovered pending future proceedings:
Regulatory Assets Currently Not Earning a Return
	Medicare Part D	$	5,879	$	-
	Other Regulatory Assets Not Yet Being Recovered		703		423
Total Regulatory Assets Not Yet Being Recovered		$	6,582	$	423

Southwestern Electric Power Co [Member]

Regulatory Assets Not Yet Being Recovered

			SWEPCo
			March 31,		December 31,
			2013		2012
Noncurrent Regulatory Assets			(in thousands)
Regulatory assets not yet being recovered pending future proceedings:
Regulatory Assets Currently Earning a Return
	Under-recovered Environmental Adjustment Clause		$	20	$	-
Regulatory Assets Currently Not Earning a Return
	Medicare Part D			6,400		-
	Rate Case Expenses			5,758		4,517
	Mountaineer Carbon Capture and Storage
		Commercial Scale Facility		2,295		2,295
	Other Regulatory Assets Not Yet Being Recovered			2,276		2,188
Total Regulatory Assets Not Yet Being Recovered			$	16,749	$	9,000