Bio

Breen Haire is Co-Managing Partner of Simpson Thacher’s Houston office and Co-Head of the Firm’s Energy and Infrastructure Practice. Breen represents private equity investors and public and privately-held parties in negotiated acquisitions and dispositions, controlled auctions and investments. He works on transactions in the infrastructure sector, including in the energy, digital infrastructure, telecommunications and transportation industries. Breen’s experience in the energy sector includes representing operating companies and investors in the power, renewables and oil and gas exploration and production, midstream, oilfield services, contract drilling and petrochemicals industries. A leading practitioner in the region, Breen was named a 2020 “Texas Trailblazer” by Texas Lawyer, recognized as a “Rising Star” by Texas Monthly and ranked by Chambers for his corporate transactional work.