Andrew Calder is a partner in the Houston and Austin offices of Kirkland & Ellis LLP where he also serves as a member of the Firm’s Executive Committee. His practice focuses on mergers and acquisitions, corporate and securities law, and corporate governance, with a particular focus on the energy sector.

Andrew is recognized in Chambers Global, Chambers USA, America's Leading Lawyers for Business for Energy: Oil & Gas (Transactional) 2015–2024, Corporate/M&A 2016–2024 and Energy: Electricity (Transactional) 2019–2024. In addition, he was named an American Lawyer Dealmaker of the Year in 2018, Energy & Services, Power, Utilities Lawyer of the Year by The Deal in 2018, recognized as a Top Dealmaker by Texas Lawyer's 2018 Professional Excellence Awards, Highly Regarded in Texas by IFLR1000 2019–2024, an influential energy leader in Houston Business Journal’s Who’s Who in Energy for 2015–2016 and recognized in The Legal 500 U.S. for 2015–2023.


Thought Leadership


“7 Stages Of Grief: Impact of Oil Downturn on Energy Attys,” Law360, May 2016 (Co-Author)

“SEC Adopts Rules Requiring Payment Disclosures by Resource Extraction Issuers,” Simpson Thacher Memorandum, September 6, 2012


Recognized in Lawdragon's “500 Leading Lawyers in America,” 2023.

Recognized in Chambers Global as an Eminent Practitioner for Energy Transactions: Electricity (USA) (2020–2024), Energy Transactions: Oil & Gas (USA) (2020–2024) and Corporate/M&A (International/Cross-Border & USA) (2021–2024).

Recognized as “Highly Regarded” in Texas by IFLR1000 and for M&A (2019–2024).

Recognized in The Legal 500 U.S. as a Leading Lawyer in Energy Transactions: Oil and Gas (2017–2023) and Energy Transactions: Electric/Conventional Power (2017–2023) and recognized for Energy: Renewable/Alternative Power (2022–2023), M&A (2015–2016, 2018) and Private Equity Buyouts (2015–2018).

Andrew is also an adjunct professor at University of Texas Law School and teaches a course on negotiating corporate transactions.


Admissions & Qualifications

  • 2003New York
  • 2011Texas


  • Oxford Institute of Legal PracticeLPC2002
  • BPP Law School, LondonCPE2001
  • University of EdinburghLL.B.Law Honors2000