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Porter Hedges is one of three firms representing an affiliate of American Energy Partners LP (AELP) in its pending $2.5 billion purchase of Permian Basin energy assets in Texas from affiliates of Enduring Resources.

Sullivan & Cromwell and Commercial Law Group also represent the AELP affiliate, American Energy-Permian Basin (AEPB), in the deal.

Denver-based Enduring Resources is using a Latham & Watkins team led by Houston corporate partners Michael Darden and Michael Dillard.

On June 9, Houston-based AEPB announced that it had signed an agreement to acquire about 63,000 acres of leasehold in the southern Permian Basin, mostly in Reagan and Irion counties, from affiliates of Enduring Resources. The deal will give AEPB entree into the Permian Basin. Over the last nine months, AELP has raised about $10 billion to fund five energy companies, including AEPB.

Jeremy Mouton, a partner in Houston, leads Porter Hedges’ team representing AEPB, with assistance from Houston partner Corey Brown and associates Mac Marshall, Deborah Ko and Brian Rose.

Mouton said Ray Lees led the team from Commercial Law Group of Oklahoma City, and Sullivan & Cromwell partner George Sampas in New York City led his firm’s team on the deal. Neither Lees nor Sampas immediately responded to requests for the names of additional lawyers from their firms.

In addition to Darden and Dillard, the Latham & Watkins team includes other Houston partners worked on the deal: Michael King provided advice on oil and gas transactions; Catherine Ozdogan advised on finance; Tim Fenn did tax work; and Joel Mack provided environmental advice. Washington, D.C.-based counsel Sydney Smith handled antitrust matters. Corporate associate James Robertson of Houston also worked on the deal.