CNX Midstream Partners LP owns, operates, develops, and acquires natural gas gathering and other midstream energy assets in the Marcellus Shale in Pennsylvania and West Virginia. It operates its business through the following segments: Anchor Systems and Additional Systems. The Anchor Systems segment includes four primary midstream systems such as, the McQuay System, the Majorsville System, the Mamont System and Shirley-Penns System. The Additional Systems segment includes several gathering systems primarily located in the wet gas regions of its acreage. The company was founded on May 30, 2014 and is headquartered in Canonsburg, PA.