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Five firms have a piece of an energy deal that creates a combined company valued at $3.8 billion and focused on the STACK play in Oklahoma.

Latham & Watkins represents Silver Run Acquisition Corp. II, which announced definitive agreements on Aug. 16 to merge with Alta Mesa Holdings, which is represented by Haynes and Boone, and Kingfisher Midstream, which turned to Bracewell.

Durham, Jones & Pinegar represents ARM Energy Holdings, which is the operator of Kingfisher’s assets and an equity owner, while Kirkland & Ellis represents private equity firm Bayou City Energy, an investor in Alta Mesa and Kingfisher.

Alta Mesa is an exploration and production company in Houston that works in the STACK play in the Anadarko Basin in Oklahoma, while Kingfisher, also based in Houston, is a midstream pipeline company working in the same area. After the transaction closes, Silver Run II, an oil and gas company in Houston, will be renamed Alta Mesa Resources.

The transaction is subject to approval from Silver Run II stockholders and other customary closing conditions, including Hart-Scott-Rodino antitrust approval, and is expected to close during the fourth quarter.

The Latham team for Silver Run is led by corporate partners Nick Luongo of Washington, D.C., and Debbie Yee of Houston, with associates Chad MacDonald, Jayne Wabeke, Patrick Sanford, Bryan Ryan and Corey Allen, all of Houston, and Daniel Kecman and Brad Guest, both in Washington, D.C. Others on the deal include tax partner Andrea Ramezan-Jackson of Washington, D.C., and associate Jim Cole of Houston; benefits and compensation associates Matthew Conway and Marysia Mullen, both of Washington, D.C.; environmental partner Joel Mack of Houston and associate Joshua Marnitz of Washington, D.C.; antitrust partner Jason Cruise, counsel Sydney Smith and associate Mitchell London, all of Washington, D.C.; and anti-corruption/trade sanctions partners Les Carnegie and Eric Volkman and associate Andrew Galdes, all of Washington, D.C.

Haynes and Boone partner Bill Nelson leads the firm’s team for Alta Mesa. Others are partners Kristina Trauger, Buddy Clark, Jesse Gelsomini and Kraig Grahmann, all of Houston; Vicki Odette of Dallas, and Sam Lichtman of New York; counsel John Menke of Houston; and associates Kristin Santamaria and Nick Rice, both of Dallas, Don Shiman of New York and Simin Sun of Houston.

The Bracewell lawyers for Kingfisher and HPS Investment Partners, which formed Kingfisher to provide midstream energy services, includes partners G. Alan Rafte, Jason Jean, Troy Harder, Rebecca Baker and Heather Palmer, all of Houston; Hans Dyke, Kevin Ewing and D. Kirk Morgan II, all of Washington, D.C.; and Elizabeth McGinley and Daniel Hemli, both of New York. Others are senior counsel Vivian Ouyang of New York; and associates W. Jared Berg, Kenni Callahan, Charlotte Keenan and Kathy Witty Medford, all of Houston.

At Durham Jones & Pinegar, shareholder Russell Smith of Salt Lake City leads the deal team for ARM Energy Holdings.

The Kirkland team for Bayou City, all in Houston, is led by corporate partner Bill Benitez and associate Cy Jones, with assistance from corporate associates Jesse Wallin, Jeannie Poland, Timothy Vaughan and Michael Fisherman; tax partner Mark Dundon and associate Joe Tobias; and debt finance partner Andy Veit.

Senior reporter Brenda Sapino Jeffreys covers the business of law in Texas. Contact her at bjeffreys@alm.com. On Twitter: @BrendaSJeffreys.