Jackson Walker represented Energy Spectrum Capital VI LP in the sale of Costar Midstream LLC to American Midstream Partners, LP for approximately $470 million in cash and securities.

Corporate & Securities partner Jeffrey Sone and associates Joseph Guajardo, Pete Hyndman, and Christopher Rosa handled the transaction for Jackson Walker.

Costar is an onshore gathering and processing company with its primary gathering, processing, fractionation and off-spec condensate treating and stabilization assets focused in East Texas and the Permian Basin, with a significant crude oil gathering system project underway in the Bakken Shale.

Energy Spectrum is a leading Dallas-based private equity firm focused exclusively on the energy industry.

American Midstream is a growth-oriented limited partnership formed to own, operate, develop and acquire a diversified portfolio of midstream energy assets. American Midstream provides midstream services in the Texas, North Dakota, Gulf Coast, and Southeast regions of the United States.