Formed in April 2011, Costar Midstream (“Costar”) focused on the acquisition and development of natural gas gathering and processing facilities principally in Texas and Oklahoma. Costar acquired and developed multiple gathering and processing assets across Texas and North Dakota. These assets included the Gas Solutions system of over 500 miles of natural gas gathering pipelines, three cryogenic natural gas processing plants and associated compression and treating assets located in a four-county area near Longview, TX. Costar also developed a natural gas gathering and processing system in West Texas primarily in Martin County and a Bakken crude oil gathering system in McKenzie County, ND. In October 2014, Costar was sold to American Midstream Partners (NYSE: AMID).