Summit Midstream Partners, LP is engaged in owning and operating midstream energy infrastructure that is located in North America. The Company provides natural gas gathering and compression services in two resource basins: the Piceance Basin, which includes the Mesaverde, Mancos and Niobrara Shale formations in western Colorado, and the Fort Worth Basin, which includes the Barnett Shale formation in north-central Texas. As of June 30, 2012, the Company�s gathering systems had approximately 385 miles of pipeline and 147,600 horsepower of compression. As of September 20, 2012, its systems gathered an average of approximately 909 million cubic feet per day of natural gas, of which approximately 64% consisted of natural gas liquids (NGLs), that were extracted by a third party processor. On February 15, 2013, it closed the acquisition of to Meadowlark Midstream Company, LLC, formerly Bear Tracker Energy, LLC.