Richard Mark named one of 100 Most Powerful Execut

COLLINSVILLE, Ill. , Sept. 25, 2012 /PRNewswire/ -- A prominent national business publication has named Ameren Illinois President and CEO Richard J. Mark as one of its 100 Most Powerful Executives in America for 2012.

Mark is featured in the September issue of Black Enterprise Magazine , along with leaders from such major U.S. companies such as Xerox, Federal Express and McDonald's Corporation.

Black Enterprise has been honoring African Americans at the highest levels of America's largest companies since 1988.

"Mr. Mark's inclusion on this list is evidence of the undeniable progress and contributions of African American executive talent in corporate America, and we could not be more enthusiastic about recognizing his achievements," said Earl G. Graves, Jr. , President and CEO of Black Enterprise.

Since 2002, Mark has held various leadership positions within Ameren Corporation. Mark has a strong operations background. He is very active in the community and attuned to customers' desire for safe, reliable and affordable energy.

Mark is now leading the Ameren Illinois infrastructure investment initiative to upgrade the Ameren Illinois electric and natural gas distribution systems. He is committed to initiatives that will enhance customer satisfaction and position Ameren Illinois to be a leading utility in the 21 ^st century.

"It is a great honor to be recognized by Black Enterprise Magazine," said Mark. "I am fortunate to work for a great company with a great team. This award embodies the core business values we live by at Ameren: Integrity, Respect, Accountability, Stewardship, Teamwork and Commitment to Excellence."

Mark serves on a variety of boards and organizations in the St. Louis metropolitan area.

Mark and the other honorees will be recognized at an Award Dinner on October 2 in New York .

Ameren Illinois delivers energy to 1.2 million electric and 813,000 natural gas customers in downstate Illinois , and our mission is to meet their energy needs in a safe, reliable, efficient and environmentally responsible manner. Our service area covers more than 1,200 communities and 43,700 square miles. For more information, visit AmerenIllinois.com .

SOURCE Ameren Corporation

Leigh Morris, +1-217-535-5228, lmorris@ameren.com, or Victoria Busch, +1-618-346-1286, vbusch@ameren.com, or Stacey Stockton-Shangraw, +1-309-677-5073, sstockton-shangraw@ameren.com

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