Feb 4, 2013 20:50 Chesapeake’s chief executive to retire Chesapeake’s chief executive to retire JONATHAN FAHEY| AP energy writer Feb. 04, 2013 Comments NEW YORK — Aubrey McClendon, the brash and embattled CEO of Chesapeake Energy Corp., will leave the company he founded 24 years ago amid philosophical differences with the company’s new board of directors. The company announced Tuesday that McClendon will step down April 1 and will serve as CEO until a successor is named. McClendon will depart even though Chesapeake says a review of his business dealings has not revealed improper conduct. Chesapeake Chairman Archie Dunham said in a statement the company needs a new leader to help develop the oil and gas assets it has amassed under McClendon, which included leases in the Haynesville Shale in northwest Louisiana. Shares of the nation’s second-largest natural gas producer rose more than 10 percent in after-hours trading. They dropped sharply last year as natural gas prices dropped to 10-year lows and some of McClendon’s business dealings called Chesapeake’s corporate governance into question.