Benefit Plans

3 Months Ended

Mar. 31, 2014

Benefit Plans

6. BENEFIT PLANS

Components of Net Periodic Benefit Cost

The following table provides the components of our net periodic benefit cost (credit) for the plans for the three months endedMarch 31, 2014 and 2013:

					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended March 31,				Three Months Ended March 31,
	2014		2013		2014		2013
	(in millions)
Service Cost	$	18	$	17	$	4	$	6
Interest Cost		55		50		17		18
Expected Return on Plan Assets		(66)		(69)		(28)		(27)
Amortization of Prior Service Cost (Credit)		1		1		(17)		(17)
Amortization of Net Actuarial Loss		31		46		5		16
Net Periodic Benefit Cost (Credit)	$	39	$	45	$	(19)	$	(4)

Appalachian Power Co [Member]

Benefit Plans

6. 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 qualifiedand a nonqualified pension plan. The Registrant Subsidiaries also participate in OPEB plans sponsored by AEP to provide health and life insurance benefits for retired employees.

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost (credit) by Registrant Subsidiary for the plans for the three months ended March 31, 2014 and 2013:

APCo
					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended March 31,				Three Months Ended March 31,
	2014		2013		2014		2013
	(in thousands)
Service Cost	$	1,759	$	1,543	$	362	$	641
Interest Cost		7,406		6,916		3,197		3,363
Expected Return on Plan Assets		(8,482)		(9,260)		(4,633)		(4,536)
Amortization of Prior Service Cost (Credit)		50		49		(2,513)		(2,512)
Amortization of Net Actuarial Loss		4,148		6,256		1,146		3,062
Net Periodic Benefit Cost (Credit)	$	4,881	$	5,504	$	(2,441)	$	18

Indiana Michigan Power Co [Member]

Benefit Plans

6. 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 qualifiedand a nonqualified pension plan. The Registrant Subsidiaries also participate in OPEB plans sponsored by AEP to provide health and life insurance benefits for retired employees.

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost (credit) by Registrant Subsidiary for the plans for the three months ended March 31, 2014 and 2013:

I&M
					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended March 31,				Three Months Ended March 31,
	2014		2013		2014		2013
	(in thousands)
Service Cost	$	2,517	$	2,184	$	487	$	805
Interest Cost		6,573		6,025		1,909		2,055
Expected Return on Plan Assets		(7,748)		(8,207)		(3,364)		(3,296)
Amortization of Prior Service Cost (Credit)		49		49		(2,355)		(2,355)
Amortization of Net Actuarial Loss		3,646		5,422		592		1,882
Net Periodic Benefit Cost (Credit)	$	5,037	$	5,473	$	(2,731)	$	(909)

Ohio Power Co [Member]

Benefit Plans

6. 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 qualifiedand a nonqualified pension plan. The Registrant Subsidiaries also participate in OPEB plans sponsored by AEP to provide health and life insurance benefits for retired employees.

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost (credit) by Registrant Subsidiary for the plans for the three months ended March 31, 2014 and 2013:

OPCo
					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended March 31,				Three Months Ended March 31,
	2014		2013		2014		2013
	(in thousands)
Service Cost	$	1,285	$	2,372	$	256	$	1,300
Interest Cost		5,526		10,292		1,901		4,447
Expected Return on Plan Assets		(6,607)		(15,141)		(3,380)		(6,238)
Amortization of Prior Service Cost (Credit)		39		71		(1,731)		(3,231)
Amortization of Net Actuarial Loss		3,106		9,309		595		4,041
Net Periodic Benefit Cost (Credit)	$	3,349	$	6,903	$	(2,359)	$	319

Public Service Co Of Oklahoma [Member]

Benefit Plans

6. 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 qualifiedand a nonqualified pension plan. The Registrant Subsidiaries also participate in OPEB plans sponsored by AEP to provide health and life insurance benefits for retired employees.

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost (credit) by Registrant Subsidiary for the plans for the three months ended March 31, 2014 and 2013:

PSO
					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended March 31,				Three Months Ended March 31,
	2014		2013		2014		2013
	(in thousands)
Service Cost	$	1,302	$	1,391	$	210	$	343
Interest Cost		3,014		2,748		893		948
Expected Return on Plan Assets		(3,651)		(3,918)		(1,575)		(1,522)
Amortization of Prior Service Cost (Credit)		74		74		(1,072)		(1,072)
Amortization of Net Actuarial Loss		1,688		2,461		277		869
Net Periodic Benefit Cost (Credit)	$	2,427	$	2,756	$	(1,267)	$	(434)

Southwestern Electric Power Co [Member]

Benefit Plans

6. 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 qualifiedand a nonqualified pension plan. The Registrant Subsidiaries also participate in OPEB plans sponsored by AEP to provide health and life insurance benefits for retired employees.

Components of Net Periodic Benefit Cost

The following tables provide the components of net periodic benefit cost (credit) by Registrant Subsidiary for the plans for the three months ended March 31, 2014 and 2013:

SWEPCo
					Other Postretirement
	Pension Plans				Benefit Plans
	Three Months Ended March 31,				Three Months Ended March 31,
	2014		2013		2014		2013
	(in thousands)
Service Cost	$	1,655	$	1,753	$	253	$	423
Interest Cost		3,163		2,864		998		1,075
Expected Return on Plan Assets		(3,857)		(4,127)		(1,754)		(1,720)
Amortization of Prior Service Cost (Credit)		87		87		(1,289)		(1,288)
Amortization of Net Actuarial Loss		1,761		2,553		309		982
Net Periodic Benefit Cost (Credit)	$	2,809	$	3,130	$	(1,483)	$	(528)