Who We Are

James Wallis joined the Lime Rock Partners team in 2007 and became a Managing Director in 2016. Since joining the Lime Rock Partners team, he has primarily focused on North American E&P and oilfield service opportunities. Prior to joining Lime Rock, James worked in the energy investment banking groups of Merrill Lynch and Petrie Parkman & Co. He is a graduate of the Business Honors Program at the University of Texas (B.B.A.).

James currently serves on the board of directors of AccessESP, Augustus Energy Partners II, Battlecat Oil & Gas, Prime Rock Resources, San Jacinto Minerals, and San Jacinto Minerals II. James previously served on the board of directors of Braden Exploration, Braden Exploration II, Endurance Resources, PDC Mountaineer, and Vantage Energy. He is based in Houston.

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Portfolio Highlights

  • AccessESP
  • Augustus Energy Partners II
  • Battlecat Oil & Gas
  • Prime Rock Resources
  • San Jacinto Minerals