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Benefit Plans

6 Months Ended

Jun. 30, 2012

5. BENEFIT PLANS

Components of Net Periodic Benefit Cost

The following tables provide the components of our net periodic benefit cost for the plans for the three and six months ended June 30, 2012 and 2011:

					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended June 30,				Three Months Ended June 30,
	2012		2011		2012		2011
	(in millions)
Service Cost	$	19	$	18	$	11	$	10
Interest Cost		55		60		26		27
Expected Return on Plan Assets		(79)		(78)		(25)		(27)
Amortization of Prior Service Credit		-		-		(4)		-
Amortization of Net Actuarial Loss		38		31		15		8
Net Periodic Benefit Cost	$	33	$	31	$	23	$	18

					Other Postretirement
	Pension Plans				Benefit Plans
	Six Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(in millions)
Service Cost	$	38	$	36	$	23	$	21
Interest Cost		111		119		52		54
Expected Return on Plan Assets		(159)		(157)		(50)		(54)
Amortization of Prior Service Credit		-		-		(9)		-
Amortization of Net Actuarial Loss		75		61		29		15
Net Periodic Benefit Cost	$	65	$	59	$	45	$	36

Appalachian Power Co [Member]

Benefit Plans

4. BENEFIT PLANS

The Registrant Subsidiaries participate in an AEP sponsored qualified pension plan and two unfunded nonqualified pension plans. Substantially all employees are covered by the qualified plan or both the qualified plan and a nonqualified pension plan. The Registrant Subsidiaries also participate in OPEB plans sponsored by AEP to provide medical and life insurance benefits for retired employees.

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost by Registrant Subsidiary for the plans for the three and six months ended June 30, 2012 and 2011:

APCo					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended June 30,				Three Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	1,891	$	1,800	$	1,347	$	1,246
Interest Cost		7,553		8,076		4,615		4,867
Expected Return on Plan Assets		(10,486)		(10,458)		(4,188)		(4,496)
Amortization of Transition Obligation		-		-		200		287
Amortization of Prior Service Cost (Credit)		119		229		(715)		(43)
Amortization of Net Actuarial Loss		5,084		4,144		2,632		1,459
Net Periodic Benefit Cost	$	4,161	$	3,791	$	3,891	$	3,320

					Other Postretirement
	Pension Plans				Benefit Plans
	Six Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	3,782	$	3,600	$	2,694	$	2,492
Interest Cost		15,106		16,146		9,231		9,734
Expected Return on Plan Assets		(20,972)		(20,916)		(8,376)		(8,992)
Amortization of Transition Obligation		-		-		400		573
Amortization of Prior Service Cost (Credit)		238		458		(1,431)		(86)
Amortization of Net Actuarial Loss		10,169		8,285		5,263		2,914
Net Periodic Benefit Cost	$	8,323	$	7,573	$	7,781	$	6,635

Indiana Michigan Power Co [Member]

Benefit Plans

4. BENEFIT PLANS

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost by Registrant Subsidiary for the plans for the three and six months ended June 30, 2012 and 2011:

I&M					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended June 30,				Three Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	2,477	$	2,365	$	1,655	$	1,529
Interest Cost		6,561		6,934		3,197		3,402
Expected Return on Plan Assets		(9,392)		(9,214)		(3,212)		(3,471)
Amortization of Transition Obligation		-		-		33		47
Amortization of Prior Service Cost (Credit)		102		186		(596)		(59)
Amortization of Net Actuarial Loss		4,393		3,538		1,763		892
Net Periodic Benefit Cost	$	4,141	$	3,809	$	2,840	$	2,340

					Other Postretirement
	Pension Plans				Benefit Plans
	Six Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	4,954	$	4,723	$	3,310	$	3,059
Interest Cost		13,122		13,863		6,393		6,805
Expected Return on Plan Assets		(18,783)		(18,428)		(6,423)		(6,943)
Amortization of Transition Obligation		-		-		66		94
Amortization of Prior Service Cost (Credit)		204		372		(1,192)		(118)
Amortization of Net Actuarial Loss		8,785		7,072		3,525		1,783
Net Periodic Benefit Cost	$	8,282	$	7,602	$	5,679	$	4,680

Ohio Power Co [Member]

Benefit Plans

4. BENEFIT PLANS

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost by Registrant Subsidiary for the plans for the three and six months ended June 30, 2012 and 2011:

OPCo					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended June 30,				Three Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	2,751	$	2,558	$	2,187	$	1,956
Interest Cost		11,299		12,098		6,048		6,373
Expected Return on Plan Assets		(17,101)		(16,367)		(5,639)		(6,127)
Amortization of Transition Obligation		-		-		26		38
Amortization of Prior Service Cost (Credit)		185		368		(968)		(54)
Amortization of Net Actuarial Loss		7,610		6,214		3,417		1,845
Net Periodic Benefit Cost	$	4,744	$	4,871	$	5,071	$	4,031

					Other Postretirement
	Pension Plans				Benefit Plans
	Six Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	5,502	$	5,115	$	4,374	$	3,913
Interest Cost		22,597		24,176		12,095		12,748
Expected Return on Plan Assets		(34,201)		(32,733)		(11,278)		(12,256)
Amortization of Transition Obligation		-		-		52		75
Amortization of Prior Service Cost (Credit)		371		736		(1,936)		(107)
Amortization of Net Actuarial Loss		15,220		12,414		6,834		3,649
Net Periodic Benefit Cost	$	9,489	$	9,708	$	10,141	$	8,022

Public Service Co Of Oklahoma [Member]

Benefit Plans

4. BENEFIT PLANS

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost by Registrant Subsidiary for the plans for the three and six months ended June 30, 2012 and 2011:

PSO					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended June 30,				Three Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	1,488	$	1,442	$	709	$	656
Interest Cost		3,075		3,338		1,450		1,511
Expected Return on Plan Assets		(4,504)		(4,366)		(1,481)		(1,566)
Amortization of Prior Service Credit		(237)		(239)		(269)		(19)
Amortization of Net Actuarial Loss		2,051		1,700		797		388
Net Periodic Benefit Cost	$	1,873	$	1,875	$	1,206	$	970

					Other Postretirement
	Pension Plans				Benefit Plans
	Six Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	2,976	$	2,880	$	1,418	$	1,311
Interest Cost		6,150		6,643		2,899		3,023
Expected Return on Plan Assets		(9,008)		(8,732)		(2,961)		(3,132)
Amortization of Prior Service Credit		(474)		(475)		(539)		(38)
Amortization of Net Actuarial Loss		4,103		3,378		1,594		776
Net Periodic Benefit Cost	$	3,747	$	3,694	$	2,411	$	1,940

Southwestern Electric Power Co [Member]

Benefit Plans

4. BENEFIT PLANS

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost by Registrant Subsidiary for the plans for the three and six months ended June 30, 2012 and 2011:

SWEPCo					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended June 30,				Three Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	1,774	$	1,644	$	831	$	757
Interest Cost		3,135		3,348		1,668		1,743
Expected Return on Plan Assets		(4,716)		(4,595)		(1,698)		(1,800)
Amortization of Prior Service Cost (Credit)		(199)		(200)		(233)		64
Amortization of Net Actuarial Loss		2,082		1,700		914		446
Net Periodic Benefit Cost	$	2,076	$	1,897	$	1,482	$	1,210

					Other Postretirement
	Pension Plans				Benefit Plans
	Six Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Service Cost	$	3,549	$	3,286	$	1,662	$	1,514
Interest Cost		6,269		6,666		3,336		3,485
Expected Return on Plan Assets		(9,433)		(9,190)		(3,397)		(3,600)
Amortization of Prior Service Cost (Credit)		(397)		(398)		(466)		129
Amortization of Net Actuarial Loss		4,165		3,380		1,829		892
Net Periodic Benefit Cost	$	4,153	$	3,744	$	2,964	$	2,420

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-URI http://asc.fasb.org/topic&trid=2235017

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

-Paragraph 264

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 158

-Paragraph 7, 21, 22

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph b

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-Name FASB Staff Position (FSP)

-Number FAS106-2

-Paragraph 20, 21, 22

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Implementation Guide (Q and A)

-Number FAS88

-Paragraph 63

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph h

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 30

-Paragraph 26

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

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-Name Emerging Issues Task Force (EITF)

-Number 03-2

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5, 6, 7, 8

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Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 8

-Subparagraph m

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph q

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-Name Statement of Financial Accounting Standard (FAS)

-Number 106

-Paragraph 518

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+ Details