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David B. Lassetter
David B. Lassetter
Senior Associate — Mergers & Acquisitions and Capital Markets
Senior Associate — Mergers & Acquisitions and Capital Markets

David B. Lassetter

David B. Lassetter

Texas Tower
845 Texas Avenue
Suite 4700
Houston, Texas 77002

David B. Lassetter

Experience Highlights

  • Chord Energy in its $11 billion combination with Enerplus Corporation

  • Andros Capital Partners in the formation of a joint venture with Esperanza Capital Partners to acquire Deepwater Gulf of Mexico upstream and infrastructure assets, including Exxon’s assets in the Ursa and Princess Fields (In Process)

  • EnCap Investments as lead investor in the $1.7 billion line of equity investments in Double Eagle Energy Holdings IV, LLC and Tumbleweed Royalty IV, LLC

  • BCP Raptor Holdco, a Blackstone and I Squared Capital portfolio company and the parent company of EagleClaw Midstream, in its $9 billion business combination with Altus Midstream to form Kinetik Holdings

  • Oasis Petroleum Inc. in a $6 billion merger of equals with Whiting Petroleum Corporation creating Chord Energy in 2022

  • Oasis Petroleum and its affiliate companies in the $1.8 billion merger of Oasis Midstream Partners LP with Crestwood Equity Partners LP

  • First Reserve in its $135 million acquisition of TriMas Corporation’s Lamons business, a provider of industrial sealing and fastener solutions

  • Bonanza Creek Energy in its business combination with Extraction Oil & Gas to form Civitas Resources and Civitas’ subsequent acquisition of Crestone Peak Resources, creating a $4.5 billion combined company

  • FleetPride, a TPG portfolio company, in its sale to American Securities

  • Pioneer Energy Services in its $295 million sale to Patterson-UTI Energy

  • Frank’s International in its merger with Expro Group

  • PermRock Royalty Trust in its $106 million initial public offering of trust units

  • Oasis Petroleum in the simplification of Oasis Midstream Partners and drop-down of Bobcat DevCo and Beartooth DevCo

  • Oasis Petroleum Inc. in its $306 million public offering of common stock 

  • Oasis Petroleum Inc. in its $400 million offering of senior notes

  • Spectra Energy Partners, LP in its $800 million offering of senior notes by its subsidiary, Texas Eastern Transmission, LP

  • Underwriters to EQT Midstream Partners, LP in its $2.5 billion investment grade offering of senior notes 

  • Energy Transfer Partners in its $60 billion merger with Energy Transfer Equity in a unit-for-unit exchange

  • EnCap Investments in a $500 million line of equity commitment to Santa Elena Holdings, a newly-formed E&P and minerals company


  • Southern Methodist University Dedman School of Law, J.D. cum laude, 2017 (Lead Articles Editor, SMU Law Review; Phi Delta Phi)
  • The University of Texas at Austin, B.A., Economics and Government, 2014
  • Texas