Fulbright Tower

1301 McKinney St. Suite 1300

Houston, Texas 77010

(713) 351-0500

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Info@rockcliffenergy.com

Greg McCain

Chief Operating Officer

Greg most recently served as Senior Manager, Commercial for BHP Billiton Petroleum, where he managed on-shore acquisition and divestiture activities. Prior to that role, Greg was General Manager, Haynesville/Fayetteville for BHP, where he was responsible for the business unit P&L, managing capital budgets of $500 million to $750 million and over 400 office and field personnel. Greg joined BHP in 2011 following BHP’s acquisition of Petrohawk Energy Corp. for $12 billion. Greg joined Petrohawk in 2006 after the merger with KCS Resources. During his tenure with Petrohawk, Greg’s two primary roles were Vice President Resource Play Development Haynesville and Vice President Resource Play Development Fayetteville. In these capacities, Greg was responsible for the highly successful $1.0 billion to $1.5 billion development plans for each play, which encompassed personnel, leasing, capital and production forecasting, completion and development optimization, and reservoir analysis.

Prior to Petrohawk, Greg served as Production Engineer for JW Operating Company, Operations Engineer for Marathon Oil Company, Reservoir Engineer for Enron Oil and Gas (now known as EOG Resources), before starting his career in 1994 as a Reservoir Engineer with JES Consulting.

Greg has a BS in Petroleum Engineering from Texas A&M University.