As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 4/30/24  American Electric Power Co. Inc.  10-Q        3/31/24  103:36M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 2/26/24  American Electric Power Co. Inc.  10-K       12/31/23  142:74M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 11/2/23  American Electric Power Co. Inc.  10-Q        9/30/23  105:43M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 7/27/23  American Electric Power Co. Inc.  10-Q        6/30/23  103:135M                                                            
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
  5/4/23  American Electric Power Co. Inc.  10-Q        3/31/23  100:134M                                                            
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 2/23/23  American Electric Power Co. Inc.  10-K       12/31/22  147:99M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
10/27/22  American Electric Power Co. Inc.  10-Q        9/30/22   99:54M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 7/27/22  American Electric Power Co. Inc.  10-Q        6/30/22   98:52M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 4/28/22  American Electric Power Co. Inc.  10-Q        3/31/22  100:155M                                                            
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 2/24/22  American Electric Power Co. Inc.  10-K       12/31/21  137:99M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
10/28/21  American Electric Power Co. Inc.  10-Q        9/30/21  102:55M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 7/22/21  American Electric Power Co. Inc.  10-Q        6/30/21   98:52M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 4/22/21  American Electric Power Co. Inc.  10-Q        3/31/21   95:43M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.
 2/25/21  American Electric Power Co. Inc.  10-K       12/31/20  143:99M                                                             
          AEP Texas Inc.
          AEP Transmission Co., LLC
          Appalachian Power Co.
          Indiana Michigan Power Co.
          Ohio Power Co.
          Public Service Co. of Oklahoma
          Southwestern Electric Power Co.

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¹	Filing/Form Types:
	10-K	Annual Report — Form 10-K.
	10-Q	Quarterly Report — Form 10-Q.