Public Service Company of Oklahoma Seeks Bids for Natural Gas Facilities and Firm Transportation Capacity

COLUMBUS, Ohio, Sept. 17, 2025 - American Electric Power, on behalf of its subsidiary Public Service Company of Oklahoma ("PSO"), is seeking proposals from bidders to construct, operate and maintain a natural gas pipeline lateral and associated natural gas facilities (collectively, the "Gas Facilities") to the Northeastern U5-U6 Natural Gas Project ("Plant") located in Oologah, Oklahoma. These Gas Facilities will be utilized to supply the Plant with natural gas as the primary fuel source. Offers of mainline firm transportation capacity are also being sought as part of the proposal package.

Notice of intent to bid must be received on, or before, Friday, Oct. 17, 2025. Proposal packages are due no later than 5 p.m. EST, Thursday, Dec. 4, 2025, and should be submitted via email to [email protected]. More information can be found here. RFP Summary

About AEP

Our team at American Electric Power (Nasdaq: AEP) is committed to improving our customers' lives with reliable, affordable power. We are investing $54 billion from 2025 through 2029 to enhance service for customers and support the growing energy needs of our communities. Our nearly 16,000 employees operate and maintain the nation's largest electric transmission system with 40,000 line miles, along with more than 225,000 miles of distribution lines to deliver energy to 5.6 million customers in 11 states. AEP also is one of the nation's largest electricity producers with approximately 30,000 megawatts of diverse generating capacity. We are focused on safety and operational excellence, creating value for our stakeholders and bringing opportunity to our service territory through economic development and community engagement. Our family of companies includes AEP Ohio, AEP Texas, Appalachian Power (in Virginia, West Virginia and Tennessee), Indiana Michigan Power, Kentucky Power, Public Service Company of Oklahoma, and Southwestern Electric Power Company (in Arkansas, Louisiana, east Texas and the Texas Panhandle). AEP also owns AEP Energy, a competitive retail energy supplier. AEP is headquartered in Columbus, Ohio. For more information, visit aep.com.