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Gregory T. Simmons is an associate in the firm’s Energy, Renewables and Utilities department. He represents local natural gas distribution companies (LDCs) and other companies in a wide range of matters under the jurisdiction of the Federal Energy Regulatory Commission (FERC) and other administrative agencies. Gregory’s practice also includes providing representation in complex interactions between state-regulated and federally-regulated entities, and in helping the firm’s clients maintain legal and regulatory compliance.

Prior to joining the firm, Gregory was an Assistant People’s Counsel for the Maryland Office of People’s Counsel, the state’s utility consumer advocate, and clerked for the Hon. Thomas F. Stansfield in the Circuit Court for Carroll County, Maryland.

Areas of Concentration:

  • Interstate pipeline rate review and settlements
  • Interstate pipeline operational issues and settlements
  • Interstate pipeline tariff review and dispute counseling
  • FERC NAESB compliance (wholesale gas quadrant)
  •  Jurisdictional review
  • State and federal regulatory approvals for merger and acquisition activity
  • State rate review and settlements
  • State-level operational regulation of LDC activities

Practice Areas



  • Maryland
  • U.S. Court of Appeals for the District of Columbia Circuit
  • Not admitted in D.C.; practice is consistent with Rule 49(c) of the Rules of the District of Columbia Court of Appeals


  • J.D., University of Maryland School of Law, 2011
  • B.A., Journalism, University of Maryland, College Park, 2000
  • B.A., Economics, University of Maryland, College Park, 2000

Representative Experience

  • Represented LDC client in interstate natural gas pipeline fuel cost recovery settlement, achieving greater cost certainty for client.
  • Managed Hinshaw/LDC natural gas transportation rate filings for LDC clients pursuant to Part 284 of FERC’s regulations.
  • In settlement involving interstate natural gas pipeline cost recovery for polychlorinated biphenyl (PCB) remediation, represented LDC client to retain long-term cost protections for client.
  • Developed legal arguments to overcome a city’s threat to impede commencement of service by natural gas project certificated pursuant to Section 7 of the Natural Gas Act, ensuring timely delivery of gas to the LDC client.
  • Represented group of LDC clients in rate settlement involving Liquefied Natural Gas storage and transportation system, achieving rate reductions and improvements to operational provisions in pipeline’s tariff.
  • Developed regulatory and legal framework for major utility asset transfer petition.
  • Assisted in rate case development and litigation on behalf of LDC clients in state administrative proceedings.
  • Argued before the Maryland Court of Special Appeals, Maryland’s intermediate appellate court, to defeat adverse return on equity decision.
  • Achieved successful results for consumer agency in litigation of energy efficiency, smart grid base rate and infrastructure surcharge recovery matters.*

Professional and Community Activities

  • Energy Law Journal, Student Notes Editor, July 2018