A founding member of the firm's Houston office, Mr. Theriot serves as the managing partner of that office and as a member of the firm's Board of Directors.
Mr. Theriot has helped clients navigate tough legal issues in the energy field for 25 years in a variety of transactional and litigation matters. He has deep experience in the E&P, midstream, downstream, transportation, marketing, lease and land, royalty, operational, and acquisition and divestiture areas. He has handled matters before state and federal trial and appellate courts in Texas and Louisiana and helped negotiate multi-million dollar contracts involving oil and gas development, joint operations, marketing, midstream systems, acquisitions, and other related transactions.
Mr. Theriot is Board Certified in Oil, Gas, and Mineral Law by the Texas Board of Legal Specialization.
Some of his recent work includes:
•Successfully argued as lead appellate counsel before the Louisiana Supreme Court to reverse judgment below and to reinstate a mineral lease and extension against claims of mistake and error. Peironnet v. Matador Resources Co., 2012-C-2292 (La. 2013).
•Successfully argued as lead counsel before U.S. Fifth Circuit to reverse trial judgment on claims involving breach of joint operating agreement and well costs. EOG Resources, Inc. v. Chesapeake Energy Corp., 605 F.3d 260 (5th Cir. 2010), on remand, 2013 U.S. Dist. LEXIS 47027 (W.D. La. 3/28/2013).
•Drafted and negotiated conveyance, construction, operation, and transportation contracts for major joint venture to build crude and gas midstream systems in Eagle Ford Shale area.
•Drafted and negotiated joint venture for midstream system in Marcellus Shale, with accompanying transportation and operating agreements.
•Successfully argued as lead counsel before Louisiana Second Circuit to reverse trial judgment that denied operator the right to deduct post-production expenses from lease royalty. Culpepper v. EOG Resources, Inc., 92 So.3d 1141 (La. App. 2d Cir. 2012).
•Lease portfolio review and preparation of opinions on royalty valuation and deduction directives for prospects in Eagle Ford, North Dakota Bakken, and Marcellus Shale areas.
•Lead trial counsel for major oil companies in multiple south Texas royalty and lease lawsuits involving Eagle Ford shale development.
•Serving as arbitrator in well interest dispute between working interest owners.
•Prepared crude sale and shipping agreements for new development in Bakken Shale area.
•Arbitration of breach of contract of seismic service agreement for Congolese concession.
•Acquisition of long-term pipeline easements, including expropriation actions, for major oil, gas, and chemical company.
•Drafted and negotiated transportation, processing, fractionating, and sales agreements for Marcellus Shale exploration project.
•Defense of offshore operator from multiple litigation claims arising from purchased properties, including indemnity, contract, and environmental claims.
•Drafted project documents for CO2 secondary recovery and injection joint venture.
•Lead counsel in jury trial in Harris County, Texas, involving claims for fraud, breach of fiduciary duty, and contract interpretation in oil and gas partnership dispute.
•Successfully defended claim for fraud in connection with the sale of oil and gas working interests obtaining a zero verdict after trial in Harris County district court.
•Defended and negotiated settlement for a major oil and gas company to resolve multiple class actions asserting royalty underpayment on crude and natural gas.
•Defended several major and independent producers against crude oil royalty claims.
•Prepared and negotiated long-term contracts for pipeline and transportation agreements for an independent producer in LaSalle and McMullen Counties.
•Due diligence, title review, and financing work for credit facilities in Texas oil and gas assets.