Age: 64 Director Since: 2019 Committee Memberships: Audit Committee, Environmental and Safety Committee Key Attributes and Qualifications: Prior to his retirement in 2016, served as Executive Vice President and Chief Operating Officer for MarkWest operations of MPLX GP LLC In 2002, was one of five founders of MarkWest Energy Partners, L.P., and until 2015, served as Executive Vice President and Chief Operating Officer From 1996 to 2002, worked in various senior management roles for MarkWest Hydrocarbon, Inc. From 1982 to 1996, worked for ARCO Oil and Gas Company in various roles in engineering and operations Served as a director of the general partner of Antero Midstream GP LP beginning in April 2017 through the closing of the Simplification Transactions Has significant experience in executive management, business development, marketing, engineering and operations in the oil and gas industry. Other Public Company Boards: N/A