Facts and PSO Leadership

About Public Service Company of Oklahoma

Public Service Company of Oklahoma (PSO) has served Oklahoma's electric energy needs since the company's incorporation in May 29, 1913.

PSO today serves approximately 550,000 customers in 232 cities and towns across 30,000 square miles of eastern and southwestern Oklahoma. PSO is headquartered in Tulsa, with regulatory and external affairs offices in Oklahoma City. The company's distribution operations are organized into three districts: Tulsa, Lawton, and McAlester.

PSO is part of the American Electric Power system (AEP), which is based in Columbus, Ohio. AEP is focused on building a smarter energy infrastructure and delivering new technologies and custom energy solutions to our customers. AEP’s more than 17,000 employees operate and maintain the nation’s largest electricity transmission system and more than 224,000 miles of distribution lines to efficiently deliver safe, reliable power to nearly 5.4 million regulated customers in 11 states.

AEP also is one of the largest electric utilities in the United States with approximately 33,000 megawatts of diverse generating capacity, including 4,200 megawatts of renewable energy.

AEP’s family of companies includes utilities AEP Ohio, AEP Texas, Appalachian Power (in Virginia and West Virginia), AEP Appalachian Power (in Tennessee), Indiana Michigan Power, Kentucky Power, Public Service Company of Oklahoma, and Southwestern Electric Power Company (in Arkansas, Louisiana and east Texas). AEP also owns AEP Energy, AEP Energy Partners, AEP OnSite Partners and AEP Renewables, which provide innovative competitive energy solutions nationwide.

In 1978, PSO completed renovation of the downtown structure that had served as Tulsa's Central High School building for 60 years, transforming it into PSO's headquarters office.

The Tulsa Foundation for Architecture later presented its Landmark Award to PSO for preserving the historic building, and giving it new life as the company's headquarters.