Exhibit 99.1 News from AEP MEDIA CONTACT: ANALYSTS CONTACT: Tammy Ridout Darcy Reese Managing Director, External Communications Vice President, Investor Relations 614/716-2347 614/716-2614 FOR IMMEDIATE RELEASE AEP Reports First-Quarter 2024 Earnings, Reaffirms Guidance • First-quarter 2024 GAAP earnings of $1.91 per share; operating earnings of $1.27 per share • Company reaffirms 2024 operating earnings (non-GAAP) guidance of $5.53 to $5.73 per share and long-term growth rate of 6% to 7% • Economic develop ...