Our Partner

William Shea - Bill has 25 years of senior management experience in the energy industry.  He has led 5 publicly traded MLP's since 1996, including Buckeye Partners (BPL) and its public GP from 1996-2007, PVR Partners (PVR) and its public GP from 2010-2014 and most recently at Niska Gas Storage Partners (NKA) since May 2014.  His energy experience has been in natural gas gathering, processing and transportation, refined petroleum product pipeline transportation/terminaling operations, and natural gas storage.  He has worked closely with Riverstone Energy Holdings for 11 years managing portfolio companies for Riverstone and serving as an advisor on the USA Compression board.  Bill is also on the board of the Kayne Anderson MLP fund (KYN) and the Kayne Anderson Energy Total Return (KYE) fund.

Mark Casaday- Mark has over 30 years of experience in the natural gas industry specifically in gathering, processing, transmission and distribution companies. He has served as Executive Vice President, Chief Operating Officer of PVR Partners. Prior to that he served as CEO of Pentex Alaska Natural Gas Company, LLC. and President of Penn Octane Corporation. Mark holds a BS in Petroleum and Natural Gas Engineering from Pennsylvania State University, and a BA in Accounting from Washington and Jefferson College.


Art Cantrell - Art has been involved in the natural gas business for nearly 30 years.  Most recently Art was the Senior Vice President of Business Development for Regency Energy Partners, where he led the business development efforts for the company in the Marcellus and Utica Shales as well as actively originating midstream opportunities across the US.  From 2012 to 2014, Art was Senior Vice President of Business Development and Commercial Operations at PVR Partners.  Art’s responsibilities included managing the business development of PVR’s large franchise areas in Northeastern Pennsylvania, which grew to gather and compress 2 Bcf per day.  Art was also given the responsibility of building a new franchise for PVR in the Utica shale, which was accomplished in 2013 with the execution of a wellhead gathering and trunkline agreement with Hess Oil in Belmont and Jefferson Counties in Ohio.  From 2009 to 2012, Art was Vice President of Business Development for Caiman Energy where he led the Pittsburgh office.  As part of this private equity backed midstream startup, Art was part of the team that built a major rich gas gathering, processing and NGL fractionation business in northern West Virginia, which was sold to Williams Energy Partners for $2.5 billion.  From 2007 to 2009 Art was the Senior Vice President of Business Development for Somerset Gas Transmission.

Prior to the onset of the Marcellus Shale, Art had a successful career with Equitable Resources, Inc. (now EQT Corp.), Cinergy (now part of Duke Energy) and Consolidated Natural Gas Company (now part of Dominion Resources) in a variety of executive, commercial and operational positions.  Prior to beginning his energy career in 1987, Art was a Commissioned Officer in the United States Air Force.  Art has a BS and MBA from St. Francis University in Pennsylvania. 

Corey Jordon - Corey has worked in the oil & gas industry for over 27 years working for distribution utilities, service providers, marketing companies and midstream gathering & processing companies. Since 2014, Corey has been in a consulting role generating and evaluating projects for clients throughout the oil & gas industry. He has also provided asset optimization and commodity marketing expertise to his clients. Corey joined PVR Partners in 2011 where he was a Senior Business Development Rep in the Midcontinent Region working with the Mainline management team. From 2005 to 2011, Corey worked for Freedom Pipeline LLC as its SVP of Gas Marketing and Business Development.

Mainline is backed by a $250 million equity commitment from Riverstone Holdings LLC ("Riverstone"). Riverstone is an energy and power-focused private investment firm founded in 2000 by David M. Leuschen and Pierre F. Lapeyre, Jr. with approximately $36 billion of equity capital raised. Riverstone conducts buyout and growth capital investments in the exploration and production, midstream, oilfield services, power and renewable sectors of the energy industry. With offices in New York, London and Houston, the firm has committed approximately $35 billion to 130 investments in North America, South America, Europe, Africa, Asia and Australia.

Leadership Team