Mainline Energy Partners, LLC ("Mainline") is an experienced, producer-focused, private equity backed midstream services company that was formed in 2015, partnering with the funding and support of Riverstone Holdings LLC ("Riverstone"), an energy and power-focused private investment firm.

Mainline is led by Bill Shea, Mark Casaday and Art Cantrell, who have over 70 years of combined experience managing midstream energy investments. This group most recently served as the executive management team of PVR Partners, L.P. (NYSE:PVR) from 2010 until its sale to Regency Energy Partners in 2014. ​This team managed and grew PVR's Midcontinent gas gathering and processing assets located in Central Oklahoma, Arkoma Basin and Western Oklahoma / Texas Panhandle as well as the gas gathering and trunkline assets in Northeast Pennsylvania.



Mainline's strategy is to invest in midstream opportunities across North America, recently focusing on the SCOOP/STACK in Oklahoma and the Marcellus/Utica Shale in Pennsylvania and Ohio. Mainline works with producers on a collaborative basis to develop the infrastructure necessary to insure that producer's development plans are successfully executed.

Corporate Address

2400 Ansys Drive

Suite 102

Canonsburg,  PA.    15317