Holly Pearen

Senior Attorney

Areas of expertise: Oil & Gas, Produced water beneficial use & recycling, Wastewater treatment


Holly Pearen is an attorney for EDF's US Climate and Energy program, where she focuses on oil and gas regulation and policy. Holly works with stakeholders in key states and federal agencies to improve environmental performance and oversight of oil and gas production activities, with specific focus on mitigating potential negative impacts to land and water from oil and gas waste.


Prior to joining EDF, Holly was an attorney-advisor for the Department of the Interior, where she counseled the Southwestern regional offices of BLM and NPS on oil and gas and public lands issues. Most recently she worked in private practice, litigating water and related commercial cases.


  • Lewis & Clark Law School , J.D.
  • University of Wisconsin-Madison, B.A., Economics, with honors
  • London School of Economics, General Course


Boulder, Colorado office

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Media Contact

Kelsey Robinson
(512) 691-3404 (office)
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