Stonegate Production Company, LLC (“Stonegate”) is a start-up oil and gas company focused on mature fields in on-shore US. Stonegate is led by Mike Harvey, an experienced company builder who has successfully started three other E&P companies. His previous company, Gryphon Exploration Company, was backed by Howard Newman. The investment in Stonegate reflects Pine Brook’s investment themes: Using Proven Technologies in a New Area or Novel Way.

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