American Energy Partners LP (AELP), the private producer founded last year by Aubrey McClendon, has hired a former financial chief of Devon Energy Corp. and hired the one-time head of Chesapeake Energy Corp.’s investor relations.

Jeff Agosta, who served as CFO of Devon for four years until this past January, is assuming the CFO role for unit American Energy-Utica LLC (AEU). Agosta, 47, began his career with KPMG and was a manager with D.R. Payne & Associates before joining Devon. To date, AEU has raised close to $3 billion of institutional capital and owns 290,000 net acres in eastern Ohio.

Jeff Mobley is taking over as AELP’s senior vice president (SVP) of Major Acquisitions. Mobley, 45, had been SVP of Investor Relations and Research for Chesapeake until last year. Previously he worked in equity research for Raymond James & Associates, Prudential Securities and ABN AMRO. Mobley has been working as a consultant to AELP for the past five months; he would coordinate acquisition initiatives for large transactions and related transaction financings. He also is to be responsible for the oil and natural gas hedging programs across the AELP platform.

Ryan A. Turner has been promoted to Chief Investment Officer and CFO of Institutional Investments. Turner, 30, has been serving as vice president of finance for AELP, helping to raise committed equity and debt capital of close to $10 billion. His new duties include investment process oversight and financial responsibility across the institutionally funded business on the AELP platform. Previously, he worked for Caelus Energy LLC, a Dallas-based private equity operator.

Jeff Fisher, 54, remains COO of AELP’s operating companies, while AELP CFO Scott R. Mueller, 43, also handles McClendon’s non-oil and gas investments and activities. Curt Launer, 59, remains SVP-Capital Formation with primary responsibility for AELP’s direct investment relationships.