Commitments, Guarantees and Contingencies (Tables)

6 Months Ended

Jun. 30, 2015

Appalachian Power Co [Member]

Maximum Future Payments of Letters of Credit

Company	Amount		Maturity
	(in thousands)
I&M	$	35	March 2016
OPCo	4,200		June 2016

Pollution Control Bonds Supported by Bilateral Letters of Credit

Company	Pollution Control Bonds		Bilateral Letters of Credit		Maturity of Bilateral Letters of Credit
	(in thousands)
APCo	$	229,650	$	232,293	March 2016 to March 2017
I&M	77,000		77,886		March 2017

Maximum Potential Loss on Master Lease Agreements

Company	Maximum Potential Loss
	(in thousands)
APCo	$	4,864
I&M	3,323
OPCo	5,618
PSO	2,428
SWEPCo	2,825

Indiana Michigan Power Co [Member]

Maximum Future Payments of Letters of Credit

Company	Amount		Maturity
	(in thousands)
I&M	$	35	March 2016
OPCo	4,200		June 2016

Pollution Control Bonds Supported by Bilateral Letters of Credit

Company	Pollution Control Bonds		Bilateral Letters of Credit		Maturity of Bilateral Letters of Credit
	(in thousands)
APCo	$	229,650	$	232,293	March 2016 to March 2017
I&M	77,000		77,886		March 2017

Maximum Potential Loss on Master Lease Agreements

Company	Maximum Potential Loss
	(in thousands)
APCo	$	4,864
I&M	3,323
OPCo	5,618
PSO	2,428
SWEPCo	2,825

Ohio Power Co [Member]

Maximum Future Payments of Letters of Credit

Company	Amount		Maturity
	(in thousands)
I&M	$	35	March 2016
OPCo	4,200		June 2016

Pollution Control Bonds Supported by Bilateral Letters of Credit

Company	Pollution Control Bonds		Bilateral Letters of Credit		Maturity of Bilateral Letters of Credit
	(in thousands)
APCo	$	229,650	$	232,293	March 2016 to March 2017
I&M	77,000		77,886		March 2017

Maximum Potential Loss on Master Lease Agreements

Company	Maximum Potential Loss
	(in thousands)
APCo	$	4,864
I&M	3,323
OPCo	5,618
PSO	2,428
SWEPCo	2,825

Public Service Co Of Oklahoma [Member]

Maximum Future Payments of Letters of Credit

Company	Amount		Maturity
	(in thousands)
I&M	$	35	March 2016
OPCo	4,200		June 2016

Pollution Control Bonds Supported by Bilateral Letters of Credit

Company	Pollution Control Bonds		Bilateral Letters of Credit		Maturity of Bilateral Letters of Credit
	(in thousands)
APCo	$	229,650	$	232,293	March 2016 to March 2017
I&M	77,000		77,886		March 2017

Maximum Potential Loss on Master Lease Agreements

Company	Maximum Potential Loss
	(in thousands)
APCo	$	4,864
I&M	3,323
OPCo	5,618
PSO	2,428
SWEPCo	2,825

Southwestern Electric Power Co [Member]

Maximum Future Payments of Letters of Credit

Company	Amount		Maturity
	(in thousands)
I&M	$	35	March 2016
OPCo	4,200		June 2016

Pollution Control Bonds Supported by Bilateral Letters of Credit

Company	Pollution Control Bonds		Bilateral Letters of Credit		Maturity of Bilateral Letters of Credit
	(in thousands)
APCo	$	229,650	$	232,293	March 2016 to March 2017
I&M	77,000		77,886		March 2017

Maximum Potential Loss on Master Lease Agreements

Company	Maximum Potential Loss
	(in thousands)
APCo	$	4,864
I&M	3,323
OPCo	5,618
PSO	2,428
SWEPCo	2,825