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Mary Alexander

Mary Alexander Senior Associate, Tax

Mary’s practice consists of federal income tax planning and dispute resolution for both public and privately held companies engaged in domestic and cross-border transactions. She has advised corporations, master limited partnerships, and private equity funds on a variety of matters, including capital markets transactions, syndicated bank facilities, related party debt instruments, derivatives, federal tax credits for alternative energy projects, mergers, acquisitions, and restructuring transactions. The following is a list of representative matters in which Mary has assisted.

Experience Highlights

  • Marathon Petroleum Corporation, the controlling owner of MLPX LP and Andeavor Logistics LP, as special tax counsel in MPLX LP’s $14 billion acquisition of Andeavor Logistics LP, creating a combined midstream and logistics MLP with an estimated $55 billion enterprise value
  • Lucid Energy Group II in the $1.6 billion sale of the company, an EnCap Flatrock Midstream portfolio company, to a joint venture controlled by investment funds 
  • Ramaco Resources, Inc. in its $81 million initial public offering of common stock
  • Goodrich Petroleum Corporation in various financing matters in support of a $350 million reserve-based credit facility
  • TransCanada Corporation in the $915 million merger of Columbia Pipeline Partners and Columbia Pipeline Group, a wholly-owned subsidiary of TransCanada
  • Hess Corporation in connection with tax consequences related to internal restructurings
  • The Williams Companies, Inc. v. Energy Transfer Equity, L.P., __ A.3d. __ WL 1090912 (Del. 2017), affirming WL 3576682 (Del. Ch. June 24, 2016) (Member of trial team representing Energy Transfer Equity, LP in Delaware Chancery Court in litigation over termination of merger agreement with The Williams Companies based on failure of condition precedent relating to the provision of a tax opinion under Section 721 of the Internal Revenue Code; trial result for Energy Transfer affirmed by Delaware Supreme Court)

Contact Details


T +1.202.639.6536
F +1.202.879.8936
2200 Pennsylvania Avenue NW
Suite 500 West
Washington, DC 20037
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Mary's Practices

  • New York University School of Law, LL.M. in taxation, 2011
  • The University of Texas School of Law, J.D. with honors, 2010
  • New York University, B.A. magna cum laude, 2007 (Phi Beta Kappa)
  • Admitted to practice: Texas; District of Columbia
  • Selected to the Washington, D.C. Rising Stars list, Super Lawyers (Thomson Reuters), 2019