Stephen Gill, along with David Oelman, led a Vinson & Elkins team that helped Vanguard Natural Resources LLC negotiate a merger agreement with Encore Energy Partners LP only six months after V&E helped Vanguard acquire Encore’s general partner and purchase of 45.6 percent of its limited partner interests.

The agreement, announced July 11, calls for Encore to become a wholly-owned subsidiary of Vanguard’s operating company, Vanguard Natural Gas LLC, in a unit-for-unit exchange valued at approximately $544 million. Both master limited partnerships are based in Houston.