Public Utility Subsidiaries by Jurisdiction The following table illustrates certain regulatory information with respect to the jurisdictions in which the public utility subsidiaries of AEP operate: (a) Identifies the predominant current authorized ROE, and may not include other, less significant, permitted recovery. Actual ROE varies from authorized ROE. (b) Authorized ROE was approved in OPCo’s last distribution base case. The authorized ROE for riders with an approved equity return (e.g. Distribution Investment Rider) is 10.00%. (c) Final order received and made effective in January 2021 that approved an authorized ROE of 9.30%. The authorized ROE for riders with an approved equity return (Decommissioning Rider and the Environmental Surcharge) is 9.10%. (a) Pretax income does not include intercompany eliminations. 4 Principal Jurisdiction AEP Utility Subsidiaries Operating in that Jurisdiction Authorized Return on Equity (a) FERC AEPTCo - PJM 10.35% AEPTCo - SPP 10.50% Ohio OPCo 10.20% (b) West Virginia APCo 9.75% WPCo 9.75% Virginia APCo 9.20% Indiana I&M 9.70% Michigan I&M 9.86% Texas AEP Texas 9.40% SWEPCo 9.60% Tennessee KGPCo 9.85% Kentucky KPCo 9.30% (c) Louisiana SWEPCo 9.80% Arkansas SWEPCo 9.45% Oklahoma PSO 9.40%