Kelly Hart & Hallman LLP

57 Best Lawyers awards

Kelly Hart & Hallman LLP logo

Awarded Practice Areas

Energy Law Oil and Gas Law

Biography

Kelly Ransom’s practice is focused on intellectual property litigation, energy and environmental litigation, and other high-stakes, complex litigation at both the trial and appellate levels. Ms. Ransom defends a range of clients in patent infringement cases, including banks, a leading global payment and financial technology solutions provider, and some of the world’s largest technology companies. She was recognized as a top performing patent litigator in the U.S. by Patexia’s 2024 Patent Litigation Intelligence Report, with an overall performance score of over 95%.

Ms. Ransom has extensive experience defending oil and gas companies in high stakes “legacy litigation” cases involving claims of environmental damage, coastal land loss, and damaged hydrology in wetlands, as well as in cases involving gas storage and migration issues, royalty disputes, and mineral lease termination claims.

Ms. Ransom serves on the Executive Committee of the Center for American and International Law’s Institute for Energy Law and was the Managing Editor of its longest running publication, the Energy Law Advisor, from 2019 to 2023. She is also active in her local community and has chaired several local, non-profit boards, including the Board of Directors of New Harmony High, a state-chartered public high school in New Orleans, Louisiana that has received national recognition for educating students through the lens of coastal restoration and preservation.

Kelly Hart & Hallman LLP

57 Best Lawyers awards

Kelly Hart & Hallman LLP logo

Overview

  • Cumberland University, J.D., graduated 2007
  • Rhodes College, B.A., graduated 2003

  • Alabama, 2007
  • Texas, 2018
  • Louisiana, 2008

  • Southwest Association of Bank Counsel - Member
  • Center for American and International Law’s Institute for Energy Law - Board
  • The Energy Law Advisor - Managing Editor
  • Louisiana Oil and Gas Association - Member
  • New Harmony High, XQ Super School - President of Board of Directors
  • American Bar Association - Member
  • Women’s Energy Network - Member

  • United States Fifth Circuit Court of Appeals
  • U.S. District Court, Middle District of Louisiana
  • U.S. District Court, Eastern District of Louisiana
  • U.S. District Court, Western District of Louisiana
  • U.S. District Court, Eastern District of Texas
  • U.S. District Court, Western District of Texas
  • U.S. Bankruptcy Court, Southern District of Texas, Houston Division
  • Alabama, 2007
  • Texas, 2018
  • Louisiana, 2008
  • Southwest Association of Bank Counsel - Member
  • Center for American and International Law’s Institute for Energy Law - Board
  • The Energy Law Advisor - Managing Editor
  • Louisiana Oil and Gas Association - Member
  • New Harmony High, XQ Super School - President of Board of Directors
  • American Bar Association - Member
  • Women’s Energy Network - Member
  • Cumberland University, J.D., graduated 2007
  • Rhodes College, B.A., graduated 2003
  • United States Fifth Circuit Court of Appeals
  • U.S. District Court, Middle District of Louisiana
  • U.S. District Court, Eastern District of Louisiana
  • U.S. District Court, Western District of Louisiana
  • U.S. District Court, Eastern District of Texas
  • U.S. District Court, Western District of Texas
  • U.S. Bankruptcy Court, Southern District of Texas, Houston Division

Client Testimonials

Awards & Focus

Recognized in The Best Lawyers in America® 2026 for work in:
  • Energy Law
  • Oil and Gas Law
Recognized in Best Lawyers: Ones to Watch® in America from 2022-2025 for work in:
  • Energy Law - 2025
  • Environmental Law - 2025
  • Oil and Gas Law - 2025
  • Energy Law - 2024
  • Environmental Law - 2024
  • Oil and Gas Law - 2024
  • Energy Law - 2023
  • Environmental Law - 2023
  • Oil and Gas Law - 2023
  • Energy Law - 2022
  • Environmental Law - 2022
  • Oil and Gas Law - 2022
Additional Areas of Practice:
  • Litigation - Patent
Awards:
  • Legal 500 City Elite, 2025

    • Austin - Disputes
    • Austin - Energy Litigation & Regulation
  • The Best Lawyers in America®, Best Lawyers®, 2026

    • Energy Law
    • Oil and Gas Law
  • Top 100 U.S. Patent Litigators, Patexia’s 2025 Patent Litigation Intelligence Report

    • Most active patent litigators representing defendants
    • Top 10: Best performing patent litigators representing defendants
    • Top 20: Best performing patent litigators overall (representing plaintiffs and defendants)
  • Best Lawyers®, New Orleans-Ones to Watch, U.S. News & World Report, 2022-2025

    • Energy Law
    • Environmental Law
    • Oil and Gas Law
  • Top 100 U.S. Patent Litigators, Patexia’s 2024 Patent Litigation Intelligence Report

    • Most active patent litigators representing defendants
    • Best performing patent litigators representing defendants
    • Best performing patent litigators overall (representing plaintiffs and defendants)
  • Louisiana Super Lawyers Rising Star, Thomson Reuters, 2021

    • Energy & Resources Law
  • Leadership in Law Honoree, New Orleans CityBusiness, 2020, 2022, 2023
  • Woman of the Year, New Orleans CityBusiness, 2016, 2020

Case History

Cases
  • Enable Mississippi River Transmission LLC v. Linn Energy Holdings, LLC
Enable Mississippi River Transmission LLC v. Linn Energy Holdings, LLC, et al., U.S. Bankruptcy Court S.D. Tx., Houston Div. 16-60040 (DRJ), Adversary No. 16-6017 (11/28/18 Order) (granting Motion to Dismiss claims relating to gas storage facility)
  • Enable Mississippi River Transmission LLC v. Linn Energy Holdings, LLC
Enable Mississippi River Transmission LLC v. Linn Energy Holdings, LLC, et al., 3:15-CV-01625 (W.D. La. 2016) (dismissing claims brought under Natural Gas Act).
  • D&D Cajun Ventures, LLC v. Atlantic Richfield Company
D&D Cajun Ventures, LLC v. Atlantic Richfield Company, et al., No. 87694, Div. L, 15th JDC, Vermillion Parish, Louisiana (dismissing numerous claims, including Louisiana Mineral Code claims, through pretrial motion practice)
  • ConocoPhillips Company v. Texas Petroleum Investment Company
ConocoPhillips Company v. Texas Petroleum Investment Company, et al., 113th JDC, Harris County, Texas, No. 2011-46437; Texas Petroleum Investment Company v. Elysium West LLC, 113th JDC, Harris County, Texas, No. 2011-46437-B (defended client in litigation involving indemnity claim arising from settlement of legacy lawsuit)

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