Gregory G. Duplantis
Gregory G. Duplantis

Gregory G. Duplantis

Member

gduplantis@gamb.com337.237.0132

400 E. Kaliste Saloom Road
Suite 4200
Lafayette, LA 70508

337.237.0132 | gduplantis@gamb.com

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admissions

  • Louisiana

education

  • LSU Paul M. Hebert Law Center, J.D. 1996
  • LSU, B.S. 1986

Greg Duplantis’ legal practice centers on oil and gas property title examination with an emphasis on analyzing and rendering complex opinions concerning title that is held by production. He regularly calculates varying royalty interests, overriding royalty interests and proportionately burdened net revenue interests.

Greg has extensive experience drafting agreements and contractual provisions on behalf of both operating and non-operating working interest owners, including drafting and negotiating provisions for joint operating agreements, drilling contracts, master services contracts, unit and commingling agreements, gas sales, processing and marketing agreements, onshore and offshore facilities use agreements, mineral leases, subleases and assignments, seismic permits, rights-of-way, servitudes, surface and subsurface agreements, Form B’s, federal communitization agreements and other related transactional documents and contracts.

Greg frequently represents clients before Louisiana state agencies, including the Office of Conservation and Office of Mineral Resources, regarding oil and gas related matters such as unitization, state leasing, commingling and pipelines. He also has experience rendering “stand up” title opinions that require physically searching the indices of courts’ conveyance records and executing opinions on site.

Greg earned both his undergraduate and law degrees from Louisiana State University, where he was a four-time letter winner in pole vaulting. Following his graduation, he excelled as a world-class professional pole vaulter, becoming a four-time U.S. Olympic Trials Qualifier. Greg, who is fluent in Swedish, met his wife Helena while both were competing on the LSU Track and Field Team. Greg and Helena currently reside in Lafayette, Louisiana, where Greg serves as a volunteer assistant track and field coach at the collegiate and high school levels. He is a “National Lead Coach” and frequent lecturer at the National Pole Vault Summit, and was recently inducted into the Louisiana High School Athletic Association Hall of Fame. He and his wife Helena are proud parents of their four children, Andreas, Antoine “Twani”, Armand “Mondo” and Johanna Duplantis.

  • Analyze complex HBP title
  • Calculate proportionately burdened net revenue interests
  • Draft Federal Bureau of Land Management (BLM) Communitization Agreements
  • Work with Federal Bureau of Land Management (BLM) and State agencies on behalf of clients
  • Land and mineral title and boundary disputes
  • Oil and Gas Lease acquisition advice
  • Waterbottoms and Federal Bureau of Land Management (BLM) and State ownership issues
  • Surface and Subsurface rights from Federal Bureau of Land Management (BLM), State and private parties
  • Regulatory issues with the Federal Bureau of Land Management (BLM), State of Louisiana, Office of Conservation and Office of Mineral Resources
  • Advise on Oil and Gas Lease and property issues and other mineral related issues in litigation

  • American Association of Professional Landmen (AAPL)
  • Lafayette Association of Professional Landmen (LAPL)
  • Houston Association of Professional Landmen (HAPL)
  • Louisiana State Bar Association (LSBA)
  • Lafayette Parish Bar Association (LBA)
  • Louisiana Oil & Gas Association (LOGA)
  • Volunteer Coach for LSU Track & Field

  • Acadiana Profile Magazine’s “Top Lawyers” List - Natural Resources Law (2015 & 2019)
  • Best Lawyers in America - Oil and Gas Law (since 2014)
 

NEWS

PUBLICATIONS

  • Imprescriptible Servitudes Under the Louisiana Constitution and Mineral Code Presenter and Co-Author, Gordon Arata Annual Duck Lunch and Seminar, 2013
  • Recent Haynesville Shale Leasing Issues Presenter and Co-Author, Louisiana Mineral Law Institute, 2009
  • Ethics for the Landman Presenter and Author, LAPL 2002
  • How to Find Pole Vaulting Facilities: An Attorney and Pole Vaulter’s View Author, 2004
 

Greg Duplantis’ legal practice centers on oil and gas property title examination with an emphasis on analyzing and rendering complex opinions concerning title that is held by production. He regularly calculates varying royalty interests, overriding royalty interests and proportionately burdened net revenue interests.

Greg has extensive experience drafting agreements and contractual provisions on behalf of both operating and non-operating working interest owners, including drafting and negotiating provisions for joint operating agreements, drilling contracts, master services contracts, unit and commingling agreements, gas sales, processing and marketing agreements, onshore and offshore facilities use agreements, mineral leases, subleases and assignments, seismic permits, rights-of-way, servitudes, surface and subsurface agreements, Form B’s, federal communitization agreements and other related transactional documents and contracts.

Greg frequently represents clients before Louisiana state agencies, including the Office of Conservation and Office of Mineral Resources, regarding oil and gas related matters such as unitization, state leasing, commingling and pipelines. He also has experience rendering “stand up” title opinions that require physically searching the indices of courts’ conveyance records and executing opinions on site.

Greg earned both his undergraduate and law degrees from Louisiana State University, where he was a four-time letter winner in pole vaulting. Following his graduation, he excelled as a world-class professional pole vaulter, becoming a four-time U.S. Olympic Trials Qualifier. Greg, who is fluent in Swedish, met his wife Helena while both were competing on the LSU Track and Field Team. Greg and Helena currently reside in Lafayette, Louisiana, where Greg serves as a volunteer assistant track and field coach at the collegiate and high school levels. He is a “National Lead Coach” and frequent lecturer at the National Pole Vault Summit, and was recently inducted into the Louisiana High School Athletic Association Hall of Fame. He and his wife Helena are proud parents of their four children, Andreas, Antoine “Twani”, Armand “Mondo” and Johanna Duplantis.

  • Oil, Gas and Energy Litigation and Arbitration
  • Oil, Gas and Energy Regulatory
  • Oil, Gas and Energy Transactions
  • Title Services
  • Energy and Natural Resources
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    NEWS

    PUBLICATIONS