COLUMBUS, Ohio, April 26, 2016 – American Electric Power (NYSE: AEP) has named Lonni L. Dieck senior vice president and treasurer. Dieck currently is senior vice president - Corporate Planning and Budgeting for AEP. Oliver J. “Ollie” Sever will succeed Dieck as AEP’s senior vice president - Corporate Planning and Budgeting. Sever is currently managing director - Financial Forecasting for AEP. Both changes are effective May 2.

Dieck, 57, will have responsibility for AEP’s treasury, corporate strategy, trusts and investment activities. Dieck will replace Julie A. Sloat, who was named president and chief operating officer of AEP Ohio April 14. Sever, 59 will have responsibility for financial planning, budgeting and reporting; fundamental analysis; and integrated resource planning. Both Dieck and Sever will report to Brian X. Tierney, executive vice president and chief financial officer.

“Lonni’s financial acumen and deep understanding of our company and industry make her the right person to advance our strong treasury organization. Her leadership of our Corporate Planning and Budgeting organization has helped AEP realize significant operational savings and achieve earnings growth,” Tierney said. 

“Ollie’s experience and skill in managing our financial planning and forecasting and the valuable analysis he provides to support our operational and regulatory efforts gives me confidence that the success of our Corporate Planning and Budgeting organization will continue under his leadership,” Tierney said.

Dieck has served as senior vice president - Corporate Planning and Budgeting at AEP since 2008. She also has held leadership positions as vice president - RTO and Public Policy, vice president - Regulatory Case Management, vice president - Commercial Business Services, and director - Strategic Analysis-Projects. Dieck joined AEP in 1991 as a senior treasury staff accountant. Before joining AEP, Dieck was an audit manager for Arthur Andersen LLP.

Dieck has a bachelor's degree in accounting from Bowling Green State University in Bowling Green, Ohio. She is a member of the board of trustees and treasurer of the Ronald McDonald House of Central Ohio and serves on the board of directors for the Women’s Fund of Central Ohio. She also is a member of the executive committee for The Leukemia & Lymphoma Society’s Light the Night Walk in Columbus.

Sever has been managing director - Financial Forecasting at AEP since 2000. He has held several leadership positions in AEP’s Financial Planning organization including director - Financial Planning and Forecasting and manager - Financial Planning and Forecasting. Sever started working at AEP in 1983 as an assistant financial analyst. Before joining AEP, Sever worked in the Controller’s Division at Dayton Power & Light.

Sever has a bachelor’s degree in business administration from The Ohio State University and a master’s degree in business administration from the University of Dayton. He completed the Darden Partnership Program at the Darden Graduate School of Business Administration at the University of Virginia.

American Electric Power is one of the largest electric utilities in the United States, delivering electricity and custom energy solutions to nearly 5.4 million customers in 11 states. AEP owns the nation’s largest electricity transmission system, a more than 40,000-mile network that includes more 765-kilovolt extra-high voltage transmission lines than all other U.S. transmission systems combined. AEP also operates 223,000 miles of distribution lines. AEP ranks among the nation’s largest generators of electricity, owning approximately 31,000 megawatts of generating capacity in the U.S. AEP’s utility units operate as 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’s headquarters are in Columbus, Ohio.