Hank Herren is an associate in the firm’s Energy, Environmental & Natural Resources and Litigation & Trial Practice Groups. His oil and gas litigation experience covers lease cancellations, JOA/JIB disputes, subsurface trespass/nuisance (“frac bash” claims), service company patent infringement, and wellsite Bitcoin mining contract disputes.
He also advises energy industry clients through national- to local-scale environmental compliance with the EPA, DEQ, and OWRB—including PFAS contamination—import tariff disputes with U.S. Customs and Border Protection and the Department of Commerce, and federal regulations including the Build-America, Buy-America Act.
Hank graduated with Honors from the University of Oklahoma College of Law and served as the Editor-in-Chief of the Oil and Gas, Natural Resources, and Energy Journal. He received the Oil and Gas, Natural Resources, and Energy Certificate, an Owen T. Anderson Scholarship for oil and gas, a Comfort Scholarship for exemplary academic qualifications, and multiple American Jurisprudence Awards, including those in Torts and Water Law. He received his Bachelor of Science in Petroleum Engineering from the University of Oklahoma where he conducted undergraduate research on the mechanical properties of domestic shales under the late Dr. Carl Sondergeld.
Hank was elected as Secretary of the Oklahoma Bar Association Bench & Bar Committee and has been named as a Best Lawyers: Ones to Watch (OKC) for Commercial Litigation in the publication’s 2025 rankings.*
*Crowe & Dunlevy has no input in the rating methodologies used by the Best Lawyers publication.
