Item 16. FORM 10-K SUMMARY

None.

SIGNATURES


			American Electric Power Company, Inc.

			By:			/s/ Charles E. Zebula
						(Charles E. Zebula, Executive Vice President
						and Chief Financial Officer)

Date: February 26, 2024


Signature		Title	Date

(i)	Principal Executive Officer:

	/s/ Benjamin G.S. Fowke, III	Interim Chief Executive Officer and President	February 26, 2024
	(Benjamin G.S. Fowke, III)

(ii)	Principal Financial Officer:

	/s/ Charles E. Zebula	Executive Vice President and Chief Financial Officer	February 26, 2024
	(Charles E. Zebula)

(iii)	Principal Accounting Officer:

	/s/ Kate Sturgess	Senior Vice President, Controller and Chief Accounting Officer	February 26, 2024
	(Kate Sturgess)

(iv)	A Majority of the Directors:

	*J. Barnie Beasley, Jr.
	*Benjamin G.S. Fowke, III
	*Art A. Garcia
	*Hunter C. Gary
	*Linda A. Goodspeed
	*Donna A. James
	*Sandra Beach Lin
	*Henry P. Linginfelter
	*Margaret M. McCarthy
	*Daryl Roberts
	*Daniel G. Stoddard
	*Sara Martinez Tucker
	*Lewis Von Thaer

*By:	/s/ Charles E. Zebula		February 26, 2024
	(Charles E. Zebula, Attorney-in-Fact)

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof.


			AEP Texas Inc.

			By:			/s/ Charles E. Zebula
						(Charles E. Zebula, Vice President and Chief Financial Officer)

Date: February 26, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. The signature of each of the undersigned shall be deemed to relate only to matters having reference to the above-named company and any subsidiaries thereof.


Signature		Title	Date

(i)	Principal Executive Officer:

	/s/ Benjamin G.S. Fowke, III	Chair of the Board, Interim Chief Executive Officer and Director	February 26, 2024
	(Benjamin G.S. Fowke, III)

(ii)	Principal Financial Officer:

	/s/ Charles E. Zebula	Vice President, Chief Financial Officer and Director	February 26, 2024
	(Charles E. Zebula)

(iii)	Principal Accounting Officer:

	/s/ Kate Sturgess	Controller and Chief Accounting Officer	February 26, 2024
	(Kate Sturgess)

(iv)	A Majority of the Directors:

	*Christian T. Beam
	*David M. Feinberg
	*Therace M. Risch
	*Peggy I. Simmons
	Benjamin G.S. Fowke, III
	*Judith E. Talavera
	*Phillip R. Ulrich
	Charles E. Zebula

*By:	/s/ Charles E. Zebula		February 26, 2024
	(Charles E. Zebula, Attorney-in-Fact)

SIGNATURES


			AEP Transmission Company, LLC

			By:			/s/ Charles E. Zebula
						(Charles E. Zebula, Vice President
						and Chief Financial Officer)

Date: February 26, 2024


Signature		Title	Date

(i)	Principal Executive Officer:

	/s/ Benjamin G.S. Fowke, III	Chair of the Board, Interim Chief Executive Officer and Manager	February 26, 2024
	(Benjamin G.S. Fowke, III)

(ii)	Principal Financial Officer:

	/s/ Charles E. Zebula	Vice President, Chief Financial Officer and Manager	February 26, 2024
	(Charles E. Zebula)

(iii)	Principal Accounting Officer:

	/s/ Kate Sturgess	Controller and Chief Accounting Officer	February 26, 2024
	(Kate Sturgess)

(iv)	A Majority of the Managers:

	*Christian T. Beam
	*David M. Feinberg
	Benjamin G.S. Fowke, III
	Charles E. Zebula

*By:	/s/ Charles E. Zebula		February 26, 2024
	(Charles E. Zebula, Attorney-in-Fact)

SIGNATURES


			Appalachian Power Company

			By:			/s/ Charles E. Zebula
						(Charles E. Zebula, Vice President and Chief Financial Officer)

Date: February 26, 2024


Signature		Title	Date

(i)	Principal Executive Officer:

	/s/ Benjamin G.S. Fowke, III	Chair of the Board, Interim Chief Executive Officer and Director	February 26, 2024
	(Benjamin G.S. Fowke, III)

(ii)	Principal Financial Officer:

	/s/ Charles E. Zebula	Vice President, Chief Financial Officer and Director	February 26, 2024
	(Charles E. Zebula)

(iii)	Principal Accounting Officer:

	/s/ Kate Sturgess	Controller and Chief Accounting Officer	February 26, 2024
	(Kate Sturgess)

(iv)	A Majority of the Directors:

	*Christian T. Beam
	*David M. Feinberg
	*Therace M. Risch
	*Peggy I. Simmons
	Benjamin G.S. Fowke, III
	*Antonio P. Smyth
	*Phillip R. Ulrich
	*Aaron D. Walker
	Charles E. Zebula

*By:	/s/ Charles E. Zebula		February 26, 2024
	(Charles E. Zebula, Attorney-in-Fact)

SIGNATURES


			Indiana Michigan Power Company

			By:			/s/ Charles E. Zebula
						(Charles E. Zebula, Vice President,
						and Chief Financial Officer)

Date: February 26, 2024


Signature		Title	Date

(i)	Principal Executive Officer:

	/s/ Benjamin G.S. Fowke, III	Chair of the Board, Interim Chief Executive Officer and Director	February 26, 2024
	(Benjamin G.S. Fowke, III)

(ii)	Principal Financial Officer:

	/s/ Charles E. Zebula	Vice President, Chief Financial Officer and Director	February 26, 2024
	(Charles E. Zebula)

(iii)	Principal Accounting Officer:

	/s/ Kate Sturgess	Controller and Chief Accounting Officer	February 26, 2024
	(Kate Sturgess)

(iv)	A Majority of the Directors:

	*Steven F. Baker
	*Katherine K. Davis
	*Nicholas M. Elkins
	*David S. Isaacson
	*Peggy I. Simmons
	Benjamin G.S. Fowke, III
	*Andrew J. Williamson
	Charles E. Zebula

*By:	/s/ Charles E. Zebula		February 26, 2024
	(Charles E. Zebula, Attorney-in-Fact)

SIGNATURES


			Ohio Power Company

			By:			/s/ Charles E. Zebula
						(Charles E. Zebula, Vice President and Chief Financial Officer)

Date: February 26, 2024


Signature		Title	Date

(i)	Principal Executive Officer:

	/s/ Benjamin G.S. Fowke, III	Chair of the Board, Interim Chief Executive Officer and Director	February 26, 2024
	(Benjamin G.S. Fowke, III)

(ii)	Principal Financial Officer:

	/s/ Charles E. Zebula	Vice President, Chief Financial Officer and Director	February 26, 2024
	(Charles E. Zebula)

(iii)	Principal Accounting Officer:

	/s/ Kate Sturgess	Controller and Chief Accounting Officer	February 26, 2024
	(Kate Sturgess)

(iv)	A Majority of the Directors:

	*Christian T. Beam
	*David M. Feinberg
	*Marc D. Reitter
	*Therace M. Risch
	*Peggy I. Simmons
	Benjamin G.S. Fowke, III
	*Antonio P. Smyth
	*Phillip R. Ulrich
	Charles E. Zebula

*By:	/s/ Charles E. Zebula		February 26, 2024
	(Charles E. Zebula, Attorney-in-Fact)

SIGNATURES


			Public Service Company of Oklahoma

			By:			/s/ Charles E. Zebula
						(Charles E. Zebula, Vice President and Chief Financial Officer)

Date: February 26, 2024


Signature		Title	Date

(i)	Principal Executive Officer:

	/s/ Benjamin G.S. Fowke, III	Chair of the Board, Interim Chief Executive Officer and Director	February 26, 2024
	(Benjamin G.S. Fowke, III)

(ii)	Principal Financial Officer:

	/s/ Charles E. Zebula	Vice President, Chief Financial Officer and Director	February 26, 2024
	(Charles E. Zebula)

(iii)	Principal Accounting Officer:

	/s/ Kate Sturgess	Controller and Chief Accounting Officer	February 26, 2024
	(Kate Sturgess)

(iv)	A Majority of the Directors:

	*Christian T. Beam
	*David M. Feinberg
	*Therace M. Risch
	*Peggy I. Simmons
	Benjamin G.S. Fowke, III
	*Antonio P. Smyth
	*Leigh Anne Strahler
	*Phillip R. Ulrich
	Charles E. Zebula

*By:	/s/ Charles E. Zebula		February 26, 2024
	(Charles E. Zebula, Attorney-in-Fact)

SIGNATURES


			Southwestern Electric Power Company

			By:			/s/ Charles E. Zebula
						(Charles E. Zebula, Vice President and Chief Financial Officer)

Date: February 26, 2024


Signature		Title	Date

(i)	Principal Executive Officer:

	/s/ Benjamin G.S. Fowke, III	Chair of the Board, Interim Chief Executive Officer and Director	February 26, 2024
	(Benjamin G.S. Fowke, III)

(ii)	Principal Financial Officer:

	/s/ Charles E. Zebula	Vice President, Chief Financial Officer and Director	February 26, 2024
	(Charles E. Zebula)

(iii)	Principal Accounting Officer:

	/s/ Kate Sturgess	Controller and Chief Accounting Officer	February 26, 2024
	(Kate Sturgess)

(iv)	A Majority of the Directors:

	*Christian T. Beam
	*David M. Feinberg
	*D. Brett Mattison
	*Therace M. Risch
	*Peggy I. Simmons
	Benjamin G.S. Fowke, III
	*Antonio P. Smyth
	*Phillip R. Ulrich
	Charles E. Zebula

*By:	/s/ Charles E. Zebula		February 26, 2024
	(Charles E. Zebula, Attorney-in-Fact)

INDEX OF FINANCIAL STATEMENT SCHEDULES


			Page Number
The following financial statement schedules are included in this report on the pages indicated:

American Electric Power Company, Inc. (Parent):
Schedule I – Condensed Financial Information			S-2
Schedule I – Condensed Notes to Condensed Financial Information			S-6

American Electric Power Company, Inc. and Subsidiary Companies:
Schedule II – Valuation and Qualifying Accounts and Reserves			S-9

S-1

SCHEDULE I

AMERICAN ELECTRIC POWER COMPANY, INC. (Parent)

CONDENSED FINANCIAL INFORMATION

CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME

For the Years Ended December 31, 2023, 2022 and 2021

(in millions, except per-share and share amounts)


	Years Ended December 31,
	2023		2022		2021
REVENUES


Revenues	$	5.1	$	5.1	$	6.7

TOTAL REVENUES	5.1		5.1		6.7

EXPENSES
Other Operation	16.7		84.9		42.7

Loss on the Expected Sale of the Kentucky Operations	—		363.3		—
Depreciation and Amortization	0.5		0.4		0.4
Amortization of KPCo Basis Difference	(16.5)		—		—

TOTAL EXPENSES	0.7		448.6		43.1

OPERATING INCOME (LOSS)	4.4		(443.5)		(36.4)

Other Income (Expense):

Interest Income	181.0		80.3		18.9
Interest Expense	(526.3)		(275.5)		(169.3)

LOSS BEFORE INCOME TAX BENEFIT AND EQUITY EARNINGS	(340.9)		(638.7)		(186.8)

Income Tax Benefit	(80.8)		(136.3)		(73.5)
Equity Earnings of Unconsolidated Subsidiaries	2,468.2		2,809.6		2,601.4





NET INCOME	2,208.1		2,307.2		2,488.1

Other Comprehensive Income (Loss)	(139.2)		(101.1)		269.9

TOTAL COMPREHENSIVE INCOME	$	2,068.9	$	2,206.1	$	2,758.0

WEIGHTED AVERAGE NUMBER OF BASIC AEP COMMON SHARES OUTSTANDING	518,903,682		511,841,946		500,522,177



TOTAL BASIC EARNINGS PER SHARE ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS	$	4.26	$	4.51	$	4.97

WEIGHTED AVERAGE NUMBER OF DILUTED AEP COMMON SHARES OUTSTANDING	520,206,258		513,484,609		501,784,032



TOTAL DILUTED EARNINGS PER SHARE ATTRIBUTABLE TO AEP COMMON SHAREHOLDERS	$	4.24	$	4.49	$	4.96

See Condensed Notes to Condensed Financial Information beginning on page S-6.

S-2

SCHEDULE I

AMERICAN ELECTRIC POWER COMPANY, INC. (Parent)

CONDENSED FINANCIAL INFORMATION

CONDENSED BALANCE SHEETS

ASSETS

December 31, 2023 and 2022

(in millions)


	December 31,
	2023		2022
CURRENT ASSETS
Cash and Cash Equivalents	$	197.8	$	254.2
Other Temporary Investments	2.6		2.5
Advances to Affiliates	2,004.5		4,012.1
Accounts Receivable:
Affiliated Companies	47.7		78.6
General	2.7		0.5

Total Accounts Receivable	50.4		79.1

Accrued Tax Benefits	77.7		39.3

Prepayments and Other Current Assets	11.6		17.7
TOTAL CURRENT ASSETS	2,344.6		4,404.9

PROPERTY, PLANT AND EQUIPMENT
General	3.1		2.7

Total Property, Plant and Equipment	3.1		2.7
Accumulated Depreciation, Depletion and Amortization	1.4		1.2
TOTAL PROPERTY, PLANT AND EQUIPMENT – NET	1.7		1.5

OTHER NONCURRENT ASSETS
Investments in Unconsolidated Subsidiaries	33,598.6		31,183.7

Affiliated Notes Receivable	295.0		85.0
Deferred Charges and Other Noncurrent Assets	137.0		196.5
TOTAL OTHER NONCURRENT ASSETS	34,030.6		31,465.2

TOTAL ASSETS	$	36,376.9	$	35,871.6

See Condensed Notes to Condensed Financial Information beginning on page S-6.

S-3

SCHEDULE I

AMERICAN ELECTRIC POWER COMPANY, INC. (Parent)

CONDENSED FINANCIAL INFORMATION

CONDENSED BALANCE SHEETS

LIABILITIES AND EQUITY

December 31, 2023 and 2022

(dollars in millions)


			December 31,
			2023		2022
CURRENT LIABILITIES
Advances from Affiliates			$	728.3	$	919.9
Accounts Payable:
General			11.1		5.1
Affiliated Companies			12.3		34.2
Short-term Debt			1,937.9		3,362.2
Long-term Debt Due Within One Year – Nonaffiliated			1,104.0		1,050.0

Other Current Liabilities			137.7		126.3
TOTAL CURRENT LIABILITIES			3,931.3		5,497.7

NONCURRENT LIABILITIES
Long-term Debt – Nonaffiliated			7,086.9		6,322.5
Deferred Credits and Other Noncurrent Liabilities			69.5		112.1
TOTAL NONCURRENT LIABILITIES			7,156.4		6,434.6

TOTAL LIABILITIES			11,087.7		11,932.3

MEZZANINE EQUITY
Contingently Redeemable Performance Share Awards			42.5		45.9

COMMON SHAREHOLDERS’ EQUITY
Common Stock – Par Value – $6.50 Per Share:
	2023	2022
Shares Authorized	600,000,000	600,000,000
Shares Issued	527,369,157	525,099,321
(1,184,572 and 11,233,240 Shares were Held in Treasury as of December 31, 2023 and 2022, Respectively)			3,427.9		3,413.1
Paid-in Capital			9,073.9		8,051.0
Retained Earnings			12,800.4		12,345.6
Accumulated Other Comprehensive Income (Loss)			(55.5)		83.7
TOTAL AEP COMMON SHAREHOLDERS’ EQUITY			25,246.7		23,893.4

TOTAL LIABILITIES, MEZZANINE EQUITY AND TOTAL EQUITY			$	36,376.9	$	35,871.6


See Condensed Notes to Condensed Financial Information beginning on page S-6.

S-4

SCHEDULE I

AMERICAN ELECTRIC POWER COMPANY, INC. (Parent)

CONDENSED FINANCIAL INFORMATION

CONDENSED STATEMENTS OF CASH FLOWS

For the Years Ended December 31, 2023, 2022 and 2021

(in millions)


	Years Ended December 31,
	2023		2022		2021
OPERATING ACTIVITIES
Net Income	$	2,208.1	$	2,307.2	$	2,488.1


Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	0.5		0.4		0.4
Amortization of KPCo Basis Difference	(16.5)		—		—
Deferred Income Taxes	59.7		(63.3)		(63.9)
Loss on the Expected Sale of the Kentucky Operations	—		363.3		—

Equity Earnings of Unconsolidated Subsidiaries	(2,468.2)		(2,809.6)		(2,601.4)
Cash Dividends Received from Unconsolidated Subsidiaries	686.3		603.9		787.2
Change in Other Noncurrent Assets	(28.4)		(5.0)		(3.5)
Change in Other Noncurrent Liabilities	92.3		83.5		94.0
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	28.7		(61.0)		18.4
Accounts Payable	(15.9)		1.1		27.2


Other Current Assets	(3.6)		(6.0)		(0.5)
Other Current Liabilities	(14.5)		(76.6)		77.9
Net Cash Flows from Operating Activities	528.5		337.9		823.9

INVESTING ACTIVITIES


Construction Expenditures	(0.8)		(0.7)		(0.5)

Change in Advances to Affiliates, Net	2,007.6		(1,411.3)		562.9
Capital Contributions to Unconsolidated Subsidiaries	(789.9)		(568.3)		(1,185.0)
Return of Capital Contributions from Unconsolidated Subsidiaries	56.6		24.5		—
Issuance of Notes Receivable to Unconsolidated Subsidiaries	(210.0)		(20.0)		—
Repayment of Notes Receivable from Unconsolidated Subsidiaries	—		—		92.3
Other Investing Activities	—		(0.2)		—
Net Cash Flows from (Used for) Investing Activities	1,063.5		(1,976.0)		(530.3)

FINANCING ACTIVITIES
Issuance of Common Stock, Net	999.6		826.5		600.5
Issuance of Long-term Debt	1,829.8		986.6		915.0
Issuance of Short-term Debt with Original Maturities Greater Than 90 Days	1,069.9		833.9		1,393.3
Change in Short-term Debt with Original Maturities Less Than 90 Day, Net	(1,365.4)		1,650.4		(610.3)
Retirement of Long-term Debt	(1,050.0)		(300.0)		(400.0)
Change in Advances from Affiliates, Net	(191.6)		336.9		135.8
Redemption of Short-term Debt with Original Maturities Greater Than 90 Days	(1,128.8)		(986.1)		(771.3)

Dividends Paid on Common Stock	(1,752.3)		(1,628.7)		(1,507.7)
Other Financing Activities	(59.6)		(74.5)		(101.3)
Net Cash Flows from (Used for) Financing Activities	(1,648.4)		1,645.0		(346.0)





Net Increase (Decrease) in Cash and Cash Equivalents	(56.4)		6.9		(52.4)
Cash and Cash Equivalents at Beginning of Period	254.2		247.3		299.7
Cash and Cash Equivalents at End of Period	$	197.8	$	254.2	$	247.3

See Condensed Notes to Condensed Financial Information beginning on page S-6.

S-5

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The condensed financial information of Parent is required as a result of the restricted net assets of AEP consolidated subsidiaries exceeding 25% of AEP consolidated net assets as of December 31, 2023. Parent is a public utility holding company that owns all of the outstanding common stock of its public utility subsidiaries and varying percentages of other subsidiaries, including joint ventures and equity investments. The primary source of income for Parent is equity in its subsidiaries’ earnings. Its major source of cash is dividends from the subsidiaries, which are evaluated for cash flow presentation based on the nature of the distribution. Parent borrows the funds for the money pool that is used by the subsidiaries for their short-term cash needs. Parent financial statements should be read in conjunction with the AEP consolidated financial statements and the accompanying notes thereto. For purposes of these condensed financial statements, AEP wholly-owned and majority-owned subsidiaries are recorded based upon its proportionate share of the subsidiaries’ net assets (similar to presenting them on the equity method).

Income Taxes

Parent files a consolidated federal income tax return with its subsidiaries. Historically, the allocation of the AEP System’s current consolidated federal income tax to the AEP System companies allocated the benefit of current tax loss of the parent company (Parent Company Loss Benefit) to the AEP System subsidiaries through a reduction of current tax expense. In the first quarter of 2022, AEP and subsidiaries changed accounting for the Parent Company Loss Benefit from a reduction of current tax expense to an allocation through equity. The impact of this change was immaterial to the Subsidiaries’ financial statements. The consolidated NOL of the AEP System is allocated to each company in the consolidated group with taxable income. With the exception of the allocation of the consolidated AEP System NOL, the loss of the Parent and tax credits, the method of allocation reflects a separate return result for each company in the consolidated group.

Termination of Planned Disposition of KPCo and KTCo

In October 2021, AEP entered into a Stock Purchase Agreement (SPA) to sell KPCo and KTCo to Liberty Utilities Co., a subsidiary of Algonquin Power & Utilities Corp. (Liberty), for approximately a $2.85 billion enterprise value. The SPA was subsequently amended in September 2022 to reduce the purchase price to approximately $2.646 billion. The sale required approval from the KPSC and from the FERC under Section 203 of the Federal Power Act. The SPA contained certain termination rights if the closing of the sale did not occur by April 26, 2023.

In May 2022, the KPSC approved the sale of KPCo to Liberty subject to certain conditions contingent upon the closing of the sale. In December 2022, the FERC issued an order denying, without prejudice, authorization of the proposed sale stating the applicants failed to demonstrate the proposed transaction will not have an adverse effect on rates. In February 2023, a new filing for approval under Section 203 of the Federal Power Act was submitted. In March 2023, the KPSC and other intervenors made filings recommending the FERC reject AEP and Liberty’s new Section 203 application seeking approval of the sale.

In April 2023, AEP, AEPTCo and Liberty entered into a Mutual Termination Agreement (Termination Agreement) terminating the SPA. The parties entered into the Termination Agreement as all of the conditions precedent to closing the sale could not be satisfied prior to April 26, 2023.

Upon reverting to a held and used model, AEP Parent was required to present its investment in the Kentucky Operations at the lower of fair value or historical carrying value. As a result, AEP Parent’s December 31, 2022 balance sheets reflect a $363 million pretax reduction in the basis of its investment in KPCo’s assets which is recorded in Investments in Unconsolidated Subsidiaries. In 2023, the $363 million was reduced by $28 million to remove the impact of estimated costs to sell KPCo and KTCo which was included in the Loss on the Expected Sale of the Kentucky Operations in 2022. The reduced investment in KPCo’s assets is being amortized over the 30-year average useful life of the KPCo assets.

2. COMMITMENTS, GUARANTEES AND CONTINGENCIES

Parent and its subsidiaries are parties to environmental and other legal matters. For further discussion, see Note 6 - Commitments, Guarantees and Contingencies included in the 2023 Annual Report.

S-6

3. FINANCING ACTIVITIES

The following details long-term debt outstanding as of December 31, 2023 and 2022:

Long-term Debt


		Weighted-Average	Interest Rate Ranges as of		Outstanding as of
		Interest Rate as of	December 31,		December 31,
Type of Debt	Maturity	December 31, 2023	2023	2022	2023		2022
					(in millions)
Senior Unsecured Notes	2025-2050	4.29%	1.00%-5.95%	0.75%-5.95%	$	5,265.0	$	4,454.0
Pollution Control Bonds	2024-2029 (a)	2.26%	1.90%-2.60%	1.90%-2.60%	537.8		537.2
Junior Subordinated Notes	2024-2027	3.90%	2.03%-5.70%	1.30%-3.88%	2,388.1		2,381.3
Total Long-term Debt Outstanding					8,190.9		7,372.5
Long-term Debt Due Within One Year					1,104.0		1,050.0
Long-term Debt					$	7,086.9	$	6,322.5

(a)Certain Pollution Control Bonds are subject to redemption earlier than the maturity date.

Long-term debt outstanding as of December 31, 2023 is payable as follows:


	2024		2025		2026		2027		2028		After 2028		Total
	(in millions)
Principal Amount (a)	$	1,104.0	$	1,264.1	$	—	$	1,717.6	$	775.0	$	3,389.9	$	8,250.6
Unamortized Discount, Net and Debt Issuance Costs													(59.7)
Total Long-term Debt Outstanding													$	8,190.9

(a)Amounts reflect the impact of fair value hedge accounting. See “Accounting for Fair Value Hedging Strategies” section of Note 10 included in the 2023 Annual Report for additional information.

Short-term Debt

Parent’s outstanding short-term debt was as follows:


	December 31, 2023				December 31, 2022
Type of Debt	Outstanding Amount		Weighted-Average Interest Rate		Outstanding Amount		Weighted-Average Interest Rate
	(in millions)				(in millions)
Commercial Paper	$	1,937.9	5.69	%	$	2,862.2	4.80	%
Term Loan	—		—	%	125.0		5.17	%
Term Loan	—		—	%	150.0		5.17	%
Term Loan	—		—	%	100.0		5.23	%
Term Loan	—		—	%	125.0		4.87	%
Total Short-term Debt	$	1,937.9			$	3,362.2

S-7

4. RELATED PARTY TRANSACTIONS

Payments on Behalf of Subsidiaries

Due to occasional time sensitivity and complexity of payments, Parent makes certain insurance, tax and benefit payments on behalf of subsidiary companies. Parent is then fully reimbursed by the subsidiary companies.

Short-term Lending to Subsidiaries

Parent uses a commercial paper program to meet the short-term borrowing needs of subsidiaries. The program is used to fund both a Utility Money Pool, which funds the utility subsidiaries, and a Nonutility Money Pool, which funds certain nonutility subsidiaries. In addition, the program also funds, as direct borrowers, the short-term debt requirements of other subsidiaries that are not participants in either money pool for regulatory or operational reasons. The program also allows some direct borrowers to invest excess cash with Parent.

Interest expense related to Parent’s short-term borrowing is included in Interest Expense on Parent’s statements of income. Parent incurred interest expense for amounts borrowed from subsidiaries of $33 million, $30 million and $2 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Interest income related to Parent’s short-term lending is included in Interest Income on Parent’s statements of income. Parent earned interest income for amounts advanced to subsidiaries of $164 million, $71 million and $15 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Affiliated Notes

Parent issued long-term debt, portions of which were loaned to its subsidiaries. Parent pays interest on the affiliated notes, but the subsidiaries accrue interest for their share of the affiliated borrowing and remit the interest to Parent. Interest income related to Parent’s loans to subsidiaries is included in Interest Income on Parent’s statements of income. Parent earned interest income on loans to subsidiaries of $6 million, $3 million and $2 million for the years ended December 31, 2023, 2022 and 2021, respectively.

S-8

SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS AND RESERVES


AEP			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts (a)		Deductions (b)		Balance at End of Period
	(in millions)
Deducted from Assets:
Accumulated Provision for Uncollectible Accounts:
Year Ended December 31, 2023	$	57.1	$	15.0	$	—	$	12.0	$	60.1
Year Ended December 31, 2022	55.4		41.2		0.8		40.3		57.1
Year Ended December 31, 2021	71.1		20.3		0.6		36.6		55.4

(a)Recoveries offset by reclasses to other assets and liabilities.

(b)Uncollectible accounts written off.

Schedule II for the Registrant Subsidiaries is not presented because the amounts are not material.

S-9

INDEX OF AEP TRANSMISSION COMPANY, LLC (AEPTCO PARENT)

FINANCIAL STATEMENT SCHEDULES


			Page Number
The following financial statement schedules are included in this report on the pages indicated:

AEP Transmission Company, LLC (AEPTCo Parent):
Schedule I – Condensed Financial Information			S-11
Schedule I – Condensed Notes to Condensed Financial Information			S-15

S-10

SCHEDULE I

AEP TRANSMISSION COMPANY, LLC (AEPTCo Parent)

CONDENSED FINANCIAL INFORMATION

CONDENSED STATEMENTS OF INCOME

For the Years Ended December 31, 2023, 2022 and 2021

(in millions)


	Years Ended December 31,
	2023		2022		2021
EXPENSES
Other Operation	$	0.2	$	0.7	$	0.2

TOTAL EXPENSES	0.2		0.7		0.2

OPERATING LOSS	(0.2)		(0.7)		(0.2)

Other Income (Expense):

Interest Income - Affiliated	218.0		177.8		158.1
Interest Expense	(215.1)		(177.1)		(157.7)

INCOME BEFORE INCOME TAX EXPENSE AND EQUITY EARNINGS OF UNCONSOLIDATED SUBSIDIARIES	2.7		—		0.2

Income Tax Expense	1.4		—		—
Equity Earnings of Unconsolidated Subsidiaries	612.9		594.2		591.5

NET INCOME	$	614.2	$	594.2	$	591.7

See Condensed Notes to Condensed Financial Information beginning on page S-15.

S-11

SCHEDULE I

AEP TRANSMISSION COMPANY, LLC (AEPTCo Parent)

CONDENSED FINANCIAL INFORMATION

CONDENSED BALANCE SHEETS

ASSETS

December 31, 2023 and 2022

(in millions)


	December 31,
	2023		2022
CURRENT ASSETS



Accounts Receivable:
General	$	28.1	$	—
Affiliated Companies	44.0		34.6

Total Accounts Receivable	72.1		34.6


Notes Receivable - Affiliated	95.0		60.0


TOTAL CURRENT ASSETS	167.1		94.6









OTHER NONCURRENT ASSETS
Notes Receivable - Affiliated	5,319.4		4,722.8

Investments in Unconsolidated Subsidiaries	6,476.2		6,021.2

TOTAL OTHER NONCURRENT ASSETS	11,795.6		10,744.0

TOTAL ASSETS	$	11,962.7	$	10,838.6

See Condensed Notes to Condensed Financial Information beginning on page S-15.

S-12

SCHEDULE I

AEP TRANSMISSION COMPANY, LLC (AEPTCo Parent)

CONDENSED FINANCIAL INFORMATION

CONDENSED BALANCE SHEETS

LIABILITIES AND EQUITY

December 31, 2023 and 2022

(in millions)


	December 31,
	2023		2022
CURRENT LIABILITIES
Advances from Affiliates	$	42.7	$	27.8
Accounts Payable:
General	35.4		78.1
Affiliated Companies	81.5		42.2

Long-term Debt Due Within One Year – Nonaffiliated	95.0		60.0

Accrued Interest	39.6		28.8

Other Current Liabilities	15.8		5.9
TOTAL CURRENT LIABILITIES	310.0		242.8

NONCURRENT LIABILITIES
Long-term Debt – Nonaffiliated	5,319.4		4,722.8




TOTAL NONCURRENT LIABILITIES	5,319.4		4,722.8

TOTAL LIABILITIES	5,629.4		4,965.6

MEMBER’S EQUITY
Paid-in Capital	3,043.4		3,022.3
Retained Earnings	3,289.9		2,850.7
TOTAL MEMBER’S EQUITY	6,333.3		5,873.0

TOTAL LIABILITIES AND MEMBER’S EQUITY	$	11,962.7	$	10,838.6

See Condensed Notes to Condensed Financial Information beginning on page S-15.

S-13

SCHEDULE I

AEP TRANSMISSION COMPANY, LLC (AEPTCo Parent)

CONDENSED FINANCIAL INFORMATION

CONDENSED STATEMENTS OF CASH FLOWS

For the Years Ended December 31, 2023, 2022 and 2021

(in millions)


	Years Ended December 31,
	2023		2022		2021
OPERATING ACTIVITIES
Net Income	$	614.2	$	594.2	$	591.7
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:





Equity Earnings of Unconsolidated Subsidiaries	(612.9)		(594.2)		(591.5)
Change in Other Noncurrent Assets	3.8		—		—
Change in Other Noncurrent Liabilities	11.5		9.1		6.2
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(37.5)		(2.2)		(5.9)

Accounts Payable	36.6		(0.6)		4.8

Accrued Interest	10.8		—		4.9

Other Current Liabilities	(30.5)		(0.8)		12.3
Net Cash Flows from (Used for) Operating Activities	(4.0)		5.5		22.5

INVESTING ACTIVITIES




Change in Advances to Affiliates, Net	—		12.7		96.3
Repayment of Notes Receivable from Affiliated Companies	60.0		104.0		50.0
Issuance of Notes Receivable to Affiliated Companies	(700.0)		(550.0)		(450.0)
Return of Capital Contributions from Unconsolidated Subsidiaries	183.7		130.0		—
Capital Contributions to Subsidiaries	(29.7)		(69.5)		(184.0)

Net Cash Flows Used for Investing Activities	(486.0)		(372.8)		(487.7)

FINANCING ACTIVITIES

Capital Contributions from Member	29.7		72.7		184.0
Return of Capital to Member	(8.6)		—		—
Issuance of Long-term Debt – Nonaffiliated	689.0		540.8		443.7


Retirement of Long-term Debt – Nonaffiliated	(60.0)		(104.0)		(50.0)
Change in Advances from Affiliates, Net	14.9		27.8		—
Dividends Paid to Member	(175.0)		(170.0)		(112.5)

Net Cash Flows from Financing Activities	490.0		367.3		465.2

Net Change in Cash and Cash Equivalents	—		—		—
Cash and Cash Equivalents at Beginning of Period	—		—		—
Cash and Cash Equivalents at End of Period	$	—	$	—	$	—

See Condensed Notes to Condensed Financial Information beginning on page S-15.

S-14

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The condensed financial information of AEPTCo Parent is required as a result of the restricted net assets of AEPTCo consolidated subsidiaries exceeding 25% of AEPTCo consolidated net assets as of December 31, 2023. AEPTCo Parent is the direct holding company for the seven State Transcos. The primary source of income for AEPTCo Parent is equity in its subsidiaries’ earnings. AEPTCo Parent financial statements should be read in conjunction with the AEPTCo consolidated financial statements and the accompanying notes thereto. For purposes of these condensed financial statements, AEPTCo wholly-owned and majority-owned subsidiaries are recorded based upon its proportionate share of the subsidiaries’ net assets (similar to presenting them on the equity method).

Income Taxes

AEPTCo Parent joins in the filing of a consolidated federal income tax return with its affiliates in the AEP System. Historically, the allocation of the AEP System’s current consolidated federal income tax to the AEP System companies allocated the benefit of current tax loss of the parent company (Parent Company Loss Benefit) to the AEP System subsidiaries through a reduction of current tax expense. In the first quarter of 2022, AEP and subsidiaries changed accounting for the Parent Company Loss Benefit from a reduction of current tax expense to an allocation through equity. The impact of this change was immaterial to the Subsidiaries’ financial statements. The consolidated NOL of the AEP System is allocated to each company in the consolidated group with taxable income. With the exception of the allocation of the consolidated AEP System NOL, the loss of the Parent and tax credits, the method of allocation reflects a separate return result for each company in the consolidated group.

Termination of Planned Disposition of KPCo and KTCo

2. COMMITMENTS, GUARANTEES AND CONTINGENCIES

AEPTCo Parent and its subsidiaries are parties to legal matters. For further discussion, see Note 6 - Commitments, Guarantees and Contingencies included in the 2023 Annual Report.

3. FINANCING ACTIVITIES

For discussion of Financing Activities, see Note 14 - Financing Activities to AEPTCo’s audited consolidated financial statements included in the 2023 Annual Report.

4. RELATED PARTY TRANSACTIONS

Payments on Behalf of Subsidiaries

Due to occasional time sensitivity and complexity of payments, Parent makes certain insurance, tax and other payments on behalf of subsidiary companies. Parent is then fully reimbursed by the subsidiary companies. AEPTCo Parent also makes convenience payments on behalf of its State Transcos. AEPTCo Parent is then fully reimbursed by its State Transcos.

S-15

Long-term Lending to Subsidiaries

AEPTCo Parent enters into debt arrangements with nonaffiliated entities. AEPTCo Parent has long-term debt of $5.4 billion and $4.8 billion as of December 31, 2023 and 2022, respectively. AEPTCo Parent uses the proceeds from these nonaffiliated debt arrangements to make affiliated loans to its State Transcos using the same interest rates and maturity dates as the nonaffiliated debt arrangements. AEPTCo Parent has recorded Notes Receivable – Affiliated of $5.4 billion and $4.8 billion as of December 31, 2023 and 2022, respectively. Related to these nonaffiliated and affiliated debt arrangements, AEPTCo Parent has recorded Accrued Interest of $40 million and $29 million as of December 31, 2023 and 2022, respectively. AEPTCo Parent has also recorded Accounts Receivable – Affiliated Companies of $44 million and $35 million as of December 31, 2023 and 2022, respectively. AEPTCo Parent has recorded Interest Income – Affiliated of $215 million, $177 million and $158 million for the years ended December 31, 2023, 2022 and 2021, respectively, related to the Notes Receivable – Affiliated. AEPTCo Parent has recorded Interest Expense of $215 million, $177 million and $158 million for the years ended December 31, 2023, 2022 and 2021, respectively, related to the nonaffiliated debt arrangements.

Short-term Lending to Subsidiaries

Interest expense related to AEPTCo Parent’s short-term borrowing is included in Interest Expense on AEPTCo Parent’s statements of income. AEPTCo Parent incurred immaterial interest expense for amounts borrowed from AEP affiliates for the years ended December 31, 2023, 2022 and 2021.

Interest income related to AEPTCo Parent’s short-term lending is included in Interest Income – Affiliated on AEPTCo Parent’s statements of income. AEPTCo Parent earned interest income for amounts advanced to AEP affiliates of $3 million, $915 thousand and $400 thousand for the year ended December 31, 2023, 2022 and 2021, respectively.

S-16

EXHIBIT INDEX

The documents listed below are being filed or have previously been filed on behalf of the Registrants shown and are incorporated herein by reference to the documents indicated and made a part hereof. Exhibits (“Ex”) not identified as previously filed are filed herewith. Exhibits designated with a dagger (†) are management contracts or compensatory plans or arrangements required to be filed as an Exhibit to this Form. Exhibits designated with an asterisk (*) are filed herewith.


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

AEP‡ File No. 1-3525

3(a)	Composite of the Restated Certificate of Incorporation of AEP, dated April 26, 2022.	2023 Form 10-K, Ex 3(a)

3(b)	Composite By-Laws of AEP amended as of April 25, 2023.	Form 8-K, Ex 3(b) dated April 28, 2023

4(a)	Indenture (for unsecured debt securities), dated as of May 1, 2001, between AEP and The Bank of New York, as Trustee.	Registration Statement No. 333-86050, Ex 4(a)(b)(c) Registration Statement No. 333-105532, Ex 4(d)(e)(f) Registration Statement No. 333-200956, Ex 4(b) Registration Statement No. 333-222068, Ex 4(b) Registration Statement No. 333-249918, Ex 4(b)(c) Registration Statement No. 333-275345, Ex 4(b)(c)(d)

4(a)1	Company Order and Officer’s Certificate between AEP and The Bank of New York Mellon Trust Company, N.A. as Trustee dated December 8, 2023 establishing terms of the 5.20% Senior Notes, Series R due 2029.	Form 8-K, Ex. 4(a) dated December 8, 2023

4(b)	Junior Subordinated Indenture, dated March 1, 2008, between AEP and The Bank of New York Mellon Trust Company, N.A., as Trustee for the Junior Subordinated Debentures.	Registration Statement No. 333-156387, Ex 4(c) (d) Registration Statement No. 333-249918, Ex 4(f)(g)

4(c)	Purchase Contract and Pledge Agreement, dated as of March 19, 2019, between AEP and The Bank of New York Mellon Trust Company, N.A., as purchase contract agent, collateral agent, custodial agent and securities intermediary.	Registration Statement No. 333-249918, Ex 4(h)

4(c)1	Purchase Contract and Pledge Agreement dated as of August 14, 2020, between AEP and The Bank of New York Mellon Trust Company, N.A., as purchase contract agent, collateral agent, custodial agent and securities intermediary.	Registration Statement No. 333-249918, Ex 4(i)

4(d)	$4,000,000,000 Credit Agreement dated March 31, 2021 among the Company, Initial Lenders and Wells Fargo Bank National Association as Administrative Agent.	Form 10-Q Ex 4.2 dated March 31, 2021

4(d)1	April 7, 2022 Amendment and extension to $4,000,000,000 Credit Agreement dated March 31, 2021 among AEP, Initial Lenders and Wells Fargo Bank National Association as Administrative Agent.	Form 10-Q Ex 4(a) dated March 31, 2022

4(e)	$1,000,000,000 Credit Agreement dated March 31, 2021 among AEP, Initial Lenders and Wells Fargo Bank National Association as Administrative Agent.	Form 10-Q Ex 4.3 dated March 31, 2021

E-1


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

4(e)1	April 7, 2022 Amendment and extension to $1,000,000,000 Credit Agreement dated March 31, 2021 among AEP, Initial Lenders and Wells Fargo Bank National Association as Administrative Agent.	Form 10-Q Ex 4(b) dated March 31, 2022

4(e)2	March 31, 2023 Amendment and extension to $1,000,000,000 Credit Agreement dated March 31, 2021 among AEP, Initial Lenders and Wells Fargo Bank National Association as Administrative Agent.	Form 10-Q Ex 4(b) dated March 31, 2023

4(f)	Distribution Agreement, dated November 6, 2020, between AEP and Credit Suisse Securities (USA) LLC, Barclays Capital Inc., BofA Securities, Inc., BNY Mellon Capital Markets, LLC, Citigroup Global Markets Inc., Scotia Capital (USA) Inc., Credit Suisse Capital LLC, Barclays Bank PLC, Bank of America, N.A. and Citibank, N.A.	Form 8-K, Ex 1.1, November 6, 2020

4(g)	Description of Securities.	2020 Form 10-K, Ex 4(c)

10(a)	Consent Decree with U.S. District Court dated October 9, 2007, as modified July 17, 2019.	Form 8-K, Ex. 10 dated October 9, 2007 Form 10-Q, Ex 10, June 30, 2013 Form 10-Q, Ex 10, June 30, 2019

†10(b)	AEP Retainer Deferral Plan for Non-Employee Directors, as Amended and Restated effective October 1, 2020.	Form 10-Q, Ex 10.2, September 30, 2020

†10(c)	AEP Stock Unit Accumulation Plan for Non-Employee Directors as amended October 1, 2020.	Form 10-Q, Ex 10.3, September 30, 2020

†10(c)1	AEP Stock Unit Accumulation Plan for Non-Employee Directors as amended June 1, 2022.	2021 Form 10-K, Ex 10(d)1

†10(d)	AEP System Excess Benefit Plan, Amended and Restated as of January 1, 2020.	2019 Form 10-K, Ex 10(e)

†10(d)1	Guaranty by AEP of AEPSC Excess Benefits Plan.	1990 Form 10-K, Ex 10(h)(1)(B)

†10(e)	AEP System Supplemental Retirement Savings Plan, Amended and Restated as of October 6, 2021 (Non-Qualified).	2022 Form 10-K, Ex 10(e)

†10(f)	AEPSC Umbrella Trust for Executives.	1993 Form 10-K, Ex 10(g)(3)

†10(f)1A	First Amendment to AEPSC Umbrella Trust for Executives.	2008 Form 10-K, Ex 10(l)(3)(A)

†10(f)2A	Second Amendment to AEPSC Umbrella Trust for Executives.	2018 Form 10-K, Ex 10(g)(2)(A)

†10(g)	AEP System Incentive Compensation Deferral Plan Amended and Restated as of June 1, 2019.	Form 10-Q, Ex 10(1), September 30, 2019

†10(h)	AEP Change In Control Agreement, as Revised Effective January 1, 2017.	Form 10-Q, Ex 10(c), September 30, 2016

†10(i)	Amended and Restated AEP System Long-Term Incentive Plan as of September 21, 2016.	Form 10-Q, Ex 10(a), September 30, 2016

E-2


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

†10(i)1A	Performance Share Award Agreement furnished to participants of the AEP System Long-Term Incentive Plan, as amended.	Form 10-Q, Ex 10(a), March 30, 2018

†10(i)2A	Restricted Stock Unit Agreement furnished to participants of the AEP System Long-Term Incentive Plan as Amended and Restated effective January 1, 2022.	2022 Form 10-K, Ex 10(i)2A

†10(j)	AEP System Stock Ownership Requirement Plan Amended and Restated effective October 1, 2020.	Form 10-Q, Ex 10.1, September 30, 2020

†10(k)	Central and South West System Special Executive Retirement Plan Amended and Restated effective January 1, 2020.	2019 Form 10-K, Ex 10(l)

†10(l)	AEP Executive Severance Plan Amended effective January 4, 2021.	2020 Form 10-K, Ex 10(n)

†10(l)(1)	AEP Executive Severance Plan Amended and Restated effective February 20, 2023.	2022 Form 10-K, Ex 10(l)(1)

†10(m)	Severance, Release of All Claims, and Non-competition Agreement between American Electric Power Company, Inc. and Ann P. Kelly.	Form 10-Q, Ex 10, dated September 30, 2023

*†10(n)	AEP Aircraft Timesharing Agreement dated January 1, 2023 between American Electric Power Service Corporation and Julia A. Sloat.

10(o)	Stock Purchase Agreement dated as of October 26, 2021 among AEP, AEPTCo and Liberty Utilities Co.	Form 10-Q, Ex 10, dated September 30, 2021

10(o)1A	First Amendment to Stock Purchase Agreement dated September 29, 2022 among AEP, AEPTCo and Liberty Utilities Co.	Form 10-Q, Ex 10, dated September 30, 2022

10(o)2A	Second Amendment to Stock Purchase Agreement dated January 16, 2023 among AEP, AEPTCo and Liberty Utilities Co.	2022 Form 10-K, Ex 10(o)2A

10(o)3	Mutual Termination Agreement dated and effective April 17, 2023 among AEP, AEPTCo and Liberty Utilities Co. terminating the Stock Purchase Agreement dated October 26, 2021 the First Amendment to the Stock Purchase Agreement, dated as of September 29, 2022, and the Second Amendment to the Stock Purchase Agreement, dated as of January 16, 2023.	Form 10-Q, Ex 10 dated June 30, 2023

*†10(p )	Director Appointment and Nomination Agreement.

*21	List of subsidiaries of AEP.

*23	Consent of PricewaterhouseCoopers LLP.

*24	Power of Attorney.

*31(a)	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

E-3


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

*31(b)	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*32(a)	Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*32(b)	Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*97	AEP Policy on Recouping Incentive Compensation

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AEP TEXAS‡ File No. 333-221643

3(a)	Composite of the Restated Certificate of Incorporation, as amended.	Registration Statement No. 333-221643, Ex 3(a)

3(b)	Bylaws.	Registration Statement No. 333-221643, Ex 3(b)

4(a)	Indenture, dated as of September 1, 2017, between AEP Texas Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee.	Registration Statement No. 333-221643, Ex 4(a)-1,4(a)-2 Registration Statement No. 333-228657, Ex 4(a)-4,4(a)-5 Registration Statement No. 333-230613, Ex 4(a)(b) Registration Statement No. 333-253585, Ex 4(b)(c)(d)

4(b)	Company Order and Officer’s Certificate between AEP Texas Inc. and The Bank of New York Mellon Trust Company, N.A. as Trustee dated May 6, 2021 establishing terms of the 3.45% Senior Notes, Series J, due 2051.	Form 8-K, Ex 4(a) dated May 6, 2021

4(c)	Company Order and Officer’s Certificate between AEP Texas Inc. and The Bank of New York Mellon Trust Company, N.A. as Trustee dated May 18, 2022 establishing terms of the 4.70% Senior Notes, Series K, due 2032 and the 5.25% Senior Notes, Series L, due 2052.	Form 10-Q, Ex 4 dated June 30, 2022

E-4


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

4(d)	Company Order and Officer’s Certificate between AEP Texas Inc. and The Bank of New York Mellon Trust Company, N.A. as Trustee dated May 24, 2023 establishing terms of the 5.40% Senior Notes, Series M, due 2033.	Form 8-K, Ex 4(a) dated May 24, 2023

*23	Consent of PricewaterhouseCoopers LLP.

*24	Power of Attorney.

*31(a)	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*31(b)	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*32(a)	Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*32(b)	Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

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AEPTCo‡ File No. 333-217143

3(a)	Limited Liability Company Agreement of AEP Transmission Company, LLC dated as of January 27, 2006.	Registration Statement No. 333-217143, Ex 3(a)

3(b)	First Amendment to Limited Liability Company Agreement of AEPTCo dated as of May 21, 2013.	Registration Statement No. 333-217143, Ex 3(b)

4(a)	Indenture, dated as of November 1, 2016, between AEPTCo and The Bank of New York Mellon Trust Company, N.A., as Trustee.	Registration Statement No. 333-217143, Ex 4(a)-1, 4(a)-2 Registration Statement No. 333-225325, Ex 4(b)(c)(d) Registration Statement No. 333-255605, Ex 4(b)(c)(d)(e)

E-5


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

4(b)	Company Order and Officer’s Certificate between AEPTCo and The Bank of New York Mellon Trust Company, N.A. as Trustee dated August 4, 2021 establishing terms of the 2.75% Senior Notes, Series N, due 2051.	Form 8-K, Ex 4(a) dated August 4, 2021

4(c)	Company Order and Officer’s Certificate between AEPTCo and The Bank of New York Mellon Trust Company, N.A. as Trustee dated June 9, 2022 establishing terms of the 4.50% Senior Notes, Series O, due 2052.	Form 10-Q, Ex 4 dated June 30, 2022

4(d)	Company Order and Officer’s Certificate between AEPTCo and The Bank of New York Mellon Trust Company, N.A. as Trustee dated March 13, 2023 establishing terms of the 5.40% Senior Notes, Series P, due 2053.	Form 8-K, Ex 4(a) dated March 13, 2023

4(e)	Note Purchase Agreement, dated as of October 18, 2012 between AEPTCo and the Initial Purchasers.	Registration Statement No. 333-217143, Ex 4(c)-1

4(f)1	Supplement to Note Purchase Agreement, dated as of November 7, 2013 between AEPTCo and the Initial Purchasers.	Registration Statement No. 333-217143, Ex 4(c)-2

4(f)2	Supplement to Note Purchase Agreement, dated as of November 14, 2014 between AEP Transmission Company, LLC and the Initial Purchasers.	Registration Statement No. 333-217143, Ex 4(c)-3

10	Stock Purchase Agreement dated as of October 26, 2021 among AEP, AEPTCo and Liberty Utilities Co.	Form 10-Q, Ex 10, dated September 30, 2021

10(1)A	First Amendment to Stock Purchase Agreement dated September 29, 2022 among AEP, AEPTCo and Liberty Utilities Co.	Form 10-Q, Ex 10, dated September 30, 2022

10(2)A	Second Amendment to Stock Purchase Agreement dated January 16, 2023 among AEP, AEPTCo and Liberty Utilities Co.	2023 Form 10-K, Ex 10(2)A

10(3)	Mutual Termination Agreement dated and effective April 17, 2023 among AEP, AEPTCo and Liberty Utilities Co. terminating the Stock Purchase Agreement dated October 26, 2021 the First Amendment to the Stock Purchase Agreement, dated as of September 29, 2022, and the Second Amendment to the Stock Purchase Agreement, dated as of January 16, 2023.	Form 10-Q, Ex 10 dated June 30, 2023

*23	Consent of PricewaterhouseCoopers LLP.

*24	Power of Attorney.

*31(a)	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*31(b)	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

E-6


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

*32(a)	Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*32(b)	Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

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104	Cover Page Interactive Data File. Formatted as inline XBRL and contained in Exhibit 101.

APCo‡ File No. 1-3457

3(a)	Composite of the Restated Articles of Incorporation of APCo, amended as of March 7, 1997.	1996 Form 10-K, Ex 3(d)

3(b)	Composite By-Laws of APCo, amended as of February 26, 2008.	2007 Form 10-K, Ex 3(b)

4(a)	Indenture (for unsecured debt securities), dated as of January 1, 1998, between APCo and The Bank of New York, As Trustee.	Registration Statement No. 333-45927, Ex 4(a)(b) Registration Statement No. 333-49071, Ex 4(b) Registration Statement No. 333-84061, Ex 4(b)(c) Registration Statement No. 333-100451, Ex 4(b) Registration Statement No. 333-116284, Ex 4(b)(c) Registration Statement No. 333-123348, Ex 4(b)(c) Registration Statement No. 333-136432, Ex 4(b)(c)(d) Registration Statement No. 333-161940, Ex 4(b)(c)(d) Registration Statement No. 333-182336, Ex 4(b)(c) Registration Statement No. 333-200750, Ex 4(b)(c) Registration Statement No. 333-214448, Ex 4(b) Registration Statement No. 333-236613, Ex 4(b)(c) Registration Statement No 333-268874, Ex 4(b)(c)(d)(e)

10(a)	Inter-Company Power Agreement, dated as of July 10, 1953, among OVEC and the Sponsoring Companies, as amended September 10, 2010.	2013 Form 10-K, Ex 10(a)

10(b)	Consent Decree with U.S. District Court dated October 9, 2007, as modified July 17, 2019.	Form 8-K, Ex. 10 dated October 9, 2007 Form 10-Q, Ex 10, June 30, 2013 Form 10-Q, Ex 10, June 30, 2019

E-7


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

*23	Consent of PricewaterhouseCoopers LLP.

*24	Power of Attorney.

*31(a)	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*31(b)	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*32(a)	Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*32(b)	Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

101.INS	XBRL Instance Document. The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.

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101.LAB	XBRL Taxonomy Extension Label Linkbase.

101.PRE	XBRL Taxonomy Extension Presentation Linkbase.

104	Cover Page Interactive Data File. Formatted as inline XBRL and contained in Exhibit 101.

I&M‡ File No. 1-3570

3(a)	Composite of the Amended Articles of Acceptance of I&M, dated of March 7, 1997.	1996 Form 10-K, Ex 3(c)

3(b)	Composite By-Laws of I&M, amended as of February 26, 2008.	2007 Form 10-K, Ex 3(b)

4	Indenture (for unsecured debt securities), dated as of October 1, 1998, between I&M and The Bank of New York, as Trustee.	Registration Statement No. 333-88523, Ex 4(a)(b)(c) Registration Statement No. 333-58656, Ex 4(b)(c) Registration Statement No. 333-108975, Ex 4(b)(c)(d) Registration Statement No. 333-136538, Ex 4(b)(c) Registration Statement No. 333-156182, Ex 4(b) Registration Statement No. 333-185087, Ex 4(b) Registration Statement No. 333-207836, Ex 4(b) Registration Statement No. 333-225103, Ex 4(b)(c)(d) Registration Statement No. 333-268880 Ex. 4(b)(c)

4(a)	Company Order and Officer’s Certificate between I&M and The Bank of New York Mellon Trust Company, N.A. as Trustee dated March 23, 2023 establishing terms of the 5.625% Senior Notes, Series P, due 2053.	Form 8-K, Ex 4(a) dated March 23, 2023.

E-8


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

10(a)	Inter-Company Power Agreement, dated as of July 10, 1953, among OVEC and the Sponsoring Companies, as amended September 10, 2010.	2013 Form 10-K, Ex 10(a)

10(b)	Unit Power Agreement dated as of March 31, 1982 between AEGCo and I&M, as amended.	Registration Statement No. 33-32752, Ex 28(b)(1)(A)(B)

10(c)	Consent Decree with U.S. District Court dated October 9, 2007, as modified July 17, 2019.	Form 8-K, Ex. 10 dated October 9, 2007 Form 10-Q, Ex 10, June 30, 2013 Form 10-Q, Ex 10, June 30, 2019

*23	Consent of PricewaterhouseCoopers LLP.

*24	Power of Attorney.

*31(a)	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*31(b)	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*32(a)	Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*32(b)	Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

101.INS	XBRL Instance Document. The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.

101.SCH	XBRL Taxonomy Extension Schema.

101.CAL	XBRL Taxonomy Extension Calculation Linkbase.

101.DEF	XBRL Taxonomy Extension Definition Linkbase.

101.LAB	XBRL Taxonomy Extension Label Linkbase.

101.PRE	XBRL Taxonomy Extension Presentation Linkbase.

104	Cover Page Interactive Data File. Formatted as inline XBRL and contained in Exhibit 101.

OPCo‡ File No. 1-6543

3(a)	Composite of the Amended Articles of Incorporation of OPCo, dated June 3, 2002.	Form 10-Q, Ex 3(e), June 30, 2002

3(b)	Amended Code of Regulations of OPCo.	Form 10-Q, Ex 3(b), June 30, 2008

E-9


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

4(a)	Indenture (for unsecured debt securities), dated as of September 1, 1997, between OPCo and Bankers Trust Company (now The Bank of New York Mellon Trust Company, N.A. as assignee of Deutsche Bank Trust Company Americas), as Trustee.	Registration Statement No. 333-49595, Ex 4(a)(b)(c) Registration Statement No. 333-106242, Ex 4(b)(c)(d) Registration Statement No. 333-127913, Ex 4(b)(c) Registration Statement No. 333-139802, Ex 4(b)(c)(d) Registration Statement No. 333-161537, Ex 4(b)(c)(d) Registration Statement No. 333-211192, Ex 4(b) Registration Statement No. 333-230094, Ex 4(b) Registration Statement No. 333-255600, Ex 4(b)(c)(d) Registration Statement No. 333-275801, Ex 4(b)

4(a)1	Resignation of Deutsche Bank Trust Company Americas, as Trustee and appointment of The Bank of New York Mellon Trust Company, N.A. as Trustee of Indenture with OPCo dated as of September 1, 1997.	Form 8-K, Item 8.01 dated October 8, 2018

4(a)2	Company Order and Officer’s Certificate between Ohio Power Company and The Bank of New York Mellon Trust Company, N.A. as Trustee dated September 9, 2021 establishing terms of the 2.90% Senior Notes, Series R, due 2051.	Form 8-K, Ex 4(a) dated September 13, 2021

4(b)	Indenture (for unsecured debt securities), dated as of February 1, 2003, between OPCo and Bank One, N.A., as Trustee.	Registration Statement No. 333-127913, Ex 4(d)(e)(f)

4(c)	Indenture (for unsecured debt securities), dated as of September 1, 1997, between CSPCo (predecessor in interest to OPCo) and Bankers Trust Company, as Trustee.	Registration Statement No. 333-54025, Ex 4(a)(b)(c)(d) Registration Statement No. 333-128174, Ex 4(b)(c)(d) Registration Statement No. 333-150603, Ex 4(b)

4(d)	Indenture (for unsecured debt securities), dated as of February 1, 2003, between CSPCo (predecessor in interest to OPCo) and Bank One, N.A., as Trustee.	Registration Statement No. 333-128174, Ex 4(e)(f)(g) Registration Statement No. 333-150603, Ex 4(b)

4(e)	First Supplemental Indenture, dated as of December 31, 2011, by and between OPCo and The Bank of New York Mellon Trust Company, N.A., as trustee, supplementing the Indenture dated as of September 1, 1997 between CSPCo (predecessor in interest to OPCo) and the trustee.	Form 8-K, Ex 4.1 dated January 6, 2012

4(f)	Third Supplemental Indenture, dated as of December 31, 2011, by and between OPCo and The Bank of New York Mellon Trust Company, N.A., as trustee, supplementing the Indenture dated as of February 14, 2003 between CSPCo (predecessor in interest to OPCo) and the trustee.	Form 8-K, Ex 4.2 dated January 6, 2012

10(a)	Inter-Company Power Agreement, dated July 10, 1953, among OVEC and the Sponsoring Companies, as amended September 10, 2010.	2013 Form 10-K, Ex 10(a)

10(b)	Consent Decree with U.S. District Court dated October 9, 2007, as modified July 17, 2019.	Form 8-K, Ex. 10 dated October 9, 2007 Form 10-Q, Ex 10, June 30, 2013 Form 10-Q, Ex 10, June 30, 2019

*23	Consent of PricewaterhouseCoopers LLP.

*24	Power of Attorney.

E-10


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

*31(a)	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*31(b)	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*32(a)	Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*32(b)	Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

101.INS	XBRL Instance Document. The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.

101.SCH	XBRL Taxonomy Extension Schema.

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101.LAB	XBRL Taxonomy Extension Label Linkbase.

101.PRE	XBRL Taxonomy Extension Presentation Linkbase.

104	Cover Page Interactive Data File. Formatted as inline XBRL and contained in Exhibit 101.

PSO‡ File No. 0-343

3(a)	Certificate of Amendment to Restated Certificate of Incorporation of PSO.	Form 10-Q, Ex 3(a), June 30, 2008

3(b)	Composite By-Laws of PSO amended as of February 26, 2008.	2007 Form 10-K, Ex 3 (b)

4(a)	Indenture (for unsecured debt securities), dated as of November 1, 2000, between PSO and The Bank of New York, as Trustee.	Registration Statement No. 333-100623, Ex 4(a)(b) Registration Statement No. 333-114665, Ex 4(b)(c) Registration Statement No. 333-133548, Ex 4(b)(c) Registration Statement No. 333-156319, Ex 4(b)(c) Registration Statement No. 333-251378, Ex 4(b)(c)

4(b)	Tenth Supplemental Indenture between PSO and The Bank of New York Mellon Trust Company, N.A. as Trustee dated August 1, 2021 establishing terms of the 2.20% Senior Notes, Series J, due 2031 and the 3.15% Senior Notes Series K, due 2051.	Form 8-K, Ex 4(a) dated August 12, 2021

4(c)	Eleventh Supplemental Indenture dated as of January 1, 2023 between PSO and The Bank of New York Mellon Trust Company, N.A.as Trustee establishing terms of 5.25% Senior Notes Series L due 2033.	Form 8-K, Ex 4(a) dated January 5, 2023

E-11


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

4(d)	Credit Agreement dated as of January 19, 2021 among PSO as Borrower, Initial Lenders and Sumitomo Mitsui Banking Corporation as Administrative Agent.	2020 Form 10-K, Ex 4(d)

4(d)A	April 19, 2022 Amendment and extension to $500,000,000 Credit Agreement dated January 19, 2021 among PSO, Initial Lenders and Sumitomo Mitsui Banking Corporation as Administrative Agent.	Form 10-Q Ex 4(c) dated March 31, 2022

*24	Power of Attorney.

*31(a)	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*31(b)	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*32(a)	Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*32(b)	Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

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104	Cover Page Interactive Data File. Formatted as inline XBRL and contained in Exhibit 101.

SWEPCo‡ File No. 1-3146

3(a)	Composite of Amended Restated Certificate of Incorporation of SWEPCo.	2008 Form 10-K, Ex 3(a)

3(a)(A)	Amendment to Amended Restated Certificate of Incorporation.	Form 8-K Ex 3.1 dated September 1, 2020

3(b)	Composite By-Laws of SWEPCo amended as of February 26, 2008.	2007 Form 10-K, Ex 3(b)

E-12


Exhibit Designation	Nature of Exhibit	Previously Filed as Exhibit to:

4(a)	Indenture (for unsecured debt securities), dated as of February 4, 2000, between SWEPCo and The Bank of New York, as Trustee.	Registration Statement No. 333-96213 Registration Statement No. 333-87834, Ex 4(a)(b) Registration Statement No. 333-100632, Ex 4(b) Registration Statement No. 333-108045, Ex 4(b) Registration Statement No. 333-145669, Ex 4(c)(d) Registration Statement No. 333-161539, Ex 4(b)(c) Registration Statement No. 333-194991, Ex 4(b)(c) Registration Statement No. 333-208535, Ex 4(b)(c) Registration Statement No. 333-226856, Ex 4(b)(c) Registration Statement No. 333-238159, Ex 4(b) Registration Statement No. 333-258961, Ex 4(a)(b)

4(b)	Fifteenth Supplemental Indenture dated November 1, 2021 between SWEPCo and The Bank of New York Mellon Trust Company, N.A. as Trustee establishing terms of 3.25% Senior Notes Series O due 2051.	Form 8-K, Ex 4(a) dated November 3, 2021

4(c)	Sixteenth Supplemental Indenture dated March 1, 2023 between SWEPCo and The Bank of New York Mellon Trust Company, N.A. as Trustee establishing terms of 5.30% Senior Notes Series P due 2033.	Form 8-K, Ex 4(a) dated March 28, 2023

*23	Consent of PricewaterhouseCoopers LLP.

*24	Power of Attorney.

*31(a)	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*31(b)	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*32(a)	Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

*32(b)	Certification of Chief Financial Officer Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code.

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101.LAB	XBRL Taxonomy Extension Label Linkbase.

101.PRE	XBRL Taxonomy Extension Presentation Linkbase.

104	Cover Page Interactive Data File. Formatted as inline XBRL and contained in Exhibit 101.

‡ Certain instruments defining the rights of holders of long-term debt of the registrants included in the financial statements of registrants filed herewith have been omitted because the total amount of securities authorized thereunder does not exceed 10% of the total assets of registrants. The registrants hereby agree to furnish a copy of any such omitted instrument to the SEC upon request.

E-13

The agreements and other documents filed as exhibits to this report are not intended to provide factual information or other disclosure other than with respect to the terms of the agreements or other documents themselves, and you should not rely on them for that purpose. In particular, any representations and warranties made by us in these agreements or other documents were made solely within the specific context of the relevant agreement or document and may not describe the actual state of affairs as of the date they were made or at any other time.

E-14

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