Bill Swanstrom

Partner

713.226.1143

More ways to contact Bill Swanstrom

With more than 30 years of experience leading energy transactions, Bill is a trusted advisor for complex mergers, acquisitions, and private equity activities in the energy sector.

Articles + Publications

Structural Changes and Policy Shifts Reshaping Private Equity Opportunities in US Energy
Overview
Representative Matters
Insights
Awards

Bill advises energy clients on their significant acquisitions, divestitures, project development, and finance activities. His work spans various aspects of the energy industry, including midstream, electric power, renewable energy, energy transition, downstream, and oilfield services, making him a versatile and strategic partner for any energy-related legal needs. Bill also has substantial experience in energy private equity transactions, representing both investors and companies.

  • Advised Pinnacle Midstream in its sale to Phillips 66 for $550 million.
  • Represented GEC in the combination of Flowco Production Solutions, Estis Compression, and Flogistix, resulting in the formation of Flowco, the shale industry’s leading provider of production optimization and artificial lift solutions, forged in partnership with White Deer Energy.
  • Counseled Summit Midstream Partners in the sale of Mountaineer Midstream to Antero Midstream.
  • Led Summit Midstream Partners in its sale of Summit Midstream Utica, LLC, to a subsidiary of MPLX for $625 million.
  • Counseled Medallion Midstream Services in the sale of its natural gas gathering processing business to Cardinal Midstream Partners.
  • Acted for ArcLight Capital Partners in the sale of Pride Convenience Holdings, LLC, to ARKO for approximately $230 million.
  • Guided Summit Midstream Partners in its acquisitions of Outrigger DJ Midstream LLC from Outrigger Energy II LLC and of Sterling Energy Investments LLC, Grasslands Energy Marketing LLC, and Centennial Water Pipelines LLC from Sterling Investment Holdings LLC, totaling $305 million.
  • Represented NextEra Energy Partners LP in the $1.37 billion acquisition of Meade Pipeline Co LLC, securing a strategic interest in the Central Penn Line.
  • Advised Nuevo Midstream Dos, LLC, in its acquisition of Republic Midstream, LLC, from an affiliate of ArcLight Capital Partners.
  • Acted for Saddle Butte Rockies Midstream, LLC, and affiliates in its $638.5 million acquisition by Black Diamond Gathering, LLC, a newly formed joint venture by Noble Midstream Partners LP and Greenfield Midstream, LLC.
  • Led Silver Creek Midstream, LLC, a portfolio company of Tailwater Capital, LLC, in its acquisition of Red Butte Pipe Line LLC.
  • Guided Medallion Gathering & Processing, LLC, in its $1.825 billion sale to an affiliate of Global Infrastructure Partners.
  • Advised one of the world’s largest wind developers in its acquisition of a 6,000 MW portfolio of wind and solar development projects across the U.S.
  • Chambers Global USA, Energy: Oil & Gas (Transactional), Nationwide (2007-2025)
  • Chambers USA, Corporate/M&A, Texas and Energy, Nationwide (2007-2025)
  • Legal 500 United States: Energy: Energy Transactions: Oil and Gas (2023-2025)
  • Best Lawyers in America®: Energy Law and Oil and Gas Law (2013-2026), Mergers and Acquisitions Law (2024-2026)
  • Lawdragon: 500 Leading Energy Lawyers (2023-2025)
  • Texas Lawyer, Texas Trailblazer (2019)
  • Houston Business Journal, “Who’s Who in Energy” (2014-2015)
  • Texas Lawyer, Go-To Lawyer Guide, Top 5 M&A lawyers in Texas (2012)
  • Super Lawyers® Texas, Mergers & Acquisitions and Energy & Natural Resources (2003-2004, 2009-2019)
Overview

Bill advises energy clients on their significant acquisitions, divestitures, project development, and finance activities. His work spans various aspects of the energy industry, including midstream, electric power, renewable energy, energy transition, downstream, and oilfield services, making him a versatile and strategic partner for any energy-related legal needs. Bill also has substantial experience in energy private equity transactions, representing both investors and companies.

Representation Matters
  • Advised Pinnacle Midstream in its sale to Phillips 66 for $550 million.
  • Represented GEC in the combination of Flowco Production Solutions, Estis Compression, and Flogistix, resulting in the formation of Flowco, the shale industry’s leading provider of production optimization and artificial lift solutions, forged in partnership with White Deer Energy.
  • Counseled Summit Midstream Partners in the sale of Mountaineer Midstream to Antero Midstream.
  • Led Summit Midstream Partners in its sale of Summit Midstream Utica, LLC, to a subsidiary of MPLX for $625 million.
  • Counseled Medallion Midstream Services in the sale of its natural gas gathering processing business to Cardinal Midstream Partners.
  • Acted for ArcLight Capital Partners in the sale of Pride Convenience Holdings, LLC, to ARKO for approximately $230 million.
  • Guided Summit Midstream Partners in its acquisitions of Outrigger DJ Midstream LLC from Outrigger Energy II LLC and of Sterling Energy Investments LLC, Grasslands Energy Marketing LLC, and Centennial Water Pipelines LLC from Sterling Investment Holdings LLC, totaling $305 million.
  • Represented NextEra Energy Partners LP in the $1.37 billion acquisition of Meade Pipeline Co LLC, securing a strategic interest in the Central Penn Line.
  • Advised Nuevo Midstream Dos, LLC, in its acquisition of Republic Midstream, LLC, from an affiliate of ArcLight Capital Partners.
  • Acted for Saddle Butte Rockies Midstream, LLC, and affiliates in its $638.5 million acquisition by Black Diamond Gathering, LLC, a newly formed joint venture by Noble Midstream Partners LP and Greenfield Midstream, LLC.
  • Led Silver Creek Midstream, LLC, a portfolio company of Tailwater Capital, LLC, in its acquisition of Red Butte Pipe Line LLC.
  • Guided Medallion Gathering & Processing, LLC, in its $1.825 billion sale to an affiliate of Global Infrastructure Partners.
  • Advised one of the world’s largest wind developers in its acquisition of a 6,000 MW portfolio of wind and solar development projects across the U.S.
Insights

Articles + Publications

Structural Changes and Policy Shifts Reshaping Private Equity Opportunities in US Energy

Speaking Engagements

22nd Annual Energy Infrastructure CEO & Investor Conference

Firm News

Troutman Pepper Locke Celebrates 100 Days as Combined Firm With Significant Achievements in Energy Sector

Press Coverage

Oil & Gas Dealmakers Undaunted Despite Industry Worries

See all insights from Bill Swanstrom

Awards
  • Chambers Global USA, Energy: Oil & Gas (Transactional), Nationwide (2007-2025)
  • Chambers USA, Corporate/M&A, Texas and Energy, Nationwide (2007-2025)
  • Legal 500 United States: Energy: Energy Transactions: Oil and Gas (2023-2025)
  • Best Lawyers in America®: Energy Law and Oil and Gas Law (2013-2026), Mergers and Acquisitions Law (2024-2026)
  • Lawdragon: 500 Leading Energy Lawyers (2023-2025)
  • Texas Lawyer, Texas Trailblazer (2019)
  • Houston Business Journal, “Who’s Who in Energy” (2014-2015)
  • Texas Lawyer, Go-To Lawyer Guide, Top 5 M&A lawyers in Texas (2012)
  • Super Lawyers® Texas, Mergers & Acquisitions and Energy & Natural Resources (2003-2004, 2009-2019)

Top areas of focus

  • Fellow, Texas Bar Foundation
  • Member, State Bar of Texas
  • Member, Houston Bar Association
  • Member, Federal Energy Bar Association
  • Executive committee and board of directors, Junior Achievement
  • Board of directors, Texas Business Hall of Fame
  • Board of directors, Performing Arts Houston; Board Chair (2023-Present)

Education

  • The University of Texas School of Law, J.D., with high honors, 1988, Chancellors; Order of the Coif, Texas Law Review
  • Southern Methodist University, B.A., english and economics, summa cum laude, 1984, Phi Beta Kappa

Bar Admissions

  • Texas