David Castro Jr. is a corporate partner in the Houston office of Kirkland & Ellis LLP. David’s practice focuses on acquisitions, divestitures and formation of joint ventures involving energy assets, with an emphasis on unconventional resources. David represents clients in connection with the purchase and sale of a broad range of assets, including upstream and midstream oil and gas assets and companies. David’s transactional experience also includes advising clients in connection with the formation of joint ventures and complex energy projects, farmout and participation agreements to develop oil and gas properties, oil and gas transportation and gathering agreements, natural gas processing and fractionation agreements and other commercial transactions concerning the development of oil and gas properties.

David is recognized in Chambers USA for Energy: Oil & Gas — Transactional (Nationwide) for 2020 and as an Up and Coming Lawyer for 2017–2019. He is also recognized as a Next Generation Partner in the 2017–2020 editions of The Legal 500 U.S. for Energy Transactions: Oil and Gas and received the Texas Lawyer’s 2018 Professional Excellence Award as an attorney “On the Rise.”


Thought Leadership


Oil And Gas Shut-Ins Risk Royalty Litigation, Law360, April 17, 2020 (Co-Author)

Dwindling Oil Storage Capacity and Impacts on Energy Companies, The Texas Lawbook, April 3, 2020 (Co-Author)

Energy: Oil & Gas 2019, Chambers and Partners: Law and Practice (Co-Author)

INSIGHT: Price Stabilization, Private Equity Engagement to Bolster Oil & Gas M&A Activity, Bloomberg Environment and Energy Report, October 4, 2018 (Co-Author)

Dealing with Midstream Commitments or Acquisitions as a Private Equity Purchaser, Rocky Mountain Mineral Law Foundation, April 2018 (Co-Author)

Energy: Oil & Gas 2018, Chambers and Partners: Law and Practice (Co-Author)

Energy: Oil & Gas 2017, Chambers and Partners: Law and Practice (Co-Author)

7 Stages Of Grief: Impact Of Oil Downturn On Energy Attys, Law360, May 2016 (Co-Author)

“Trends and Issues with 'DrillCo' Transactions,” Texas Lawyer, November 2015 (Co-Author)


Alternative Finance Structures for Oil & Gas Development: DrillCo Structures, Review of Oil & Gas Law XXX Seminar, Dallas Bar (August, 2015)


IFLR1000, Mergers & Acquisitions, Rising Star, 2019–2021

The Texas Lawyer, 2018 Professional Excellence Awards, "On the Rise"

The Legal 500 U.S., Energy Transactions: Oil and Gas, Next Generation Partner, 2017–2020 and M&A: Large Deals ($1bn+), 2019–2020

Chambers USA, Energy: Oil & Gas — Transactional (Nationwide), 2020

Chambers USA, Energy: Oil & Gas — Transactional (Nationwide), Up and Coming, 2017–2019

Super Lawyers, Texas Rising Stars, 2018–2021

Memberships & Affiliations

Houston Bar Association — Oil, Gas and Mineral Law Section


Admissions & Qualifications

  • 2009Texas


  • University of Chicago Law SchoolJ.D.2009
  • Duke UniversityB.A., History2006