Derrick  - Price - Williamson

Derrick Price Williamson

  • Member in Charge of Harrisburg Office
  • Co-Chair, Utility, Energy & Communications Law Group
Harrisburg, Pa.
717.795.2741 - office
717.254.9499 - mobile


  • University of Maryland, B.A., summa cum laude, Phi Beta Kappa
  • Duke University School of Law, J.D., Research Editor, Duke Environmental Law & Policy Forum


  • Pennsylvania
  • United States Court of Appeals, District of Columbia Circuit
  • United States District Court for the Middle District of Pennsylvania
Mr. Williamson’s primary areas of practice are public utility and energy law. He is Co-Chair of the firm's Utility, Energy & Communications Law Group.

Representative Experience

  • Regularly represents clients before state public service/utility commissions and appellate courts
  • Counsels manufacturing, institutional, industrial, and large commercial clients regarding the procurement of energy services, including the analysis and negotiation of natural gas and electricity supply contracts
  • Substantial experience in legislative development, implementation, and regulation associated with electric industry restructuring and telecommunications competition in Pennsylvania and West Virginia
  • Counsel for over 20 years to the West Virginia Energy Users Group, a state-wide group of large industrial and manufacturing interests that collectively consume 4 billion kWh of electricity annually in West Virginia
  • Extensive experience in litigating electric and natural gas rate cases and merger cases
  • Extensive experience representing end-users with respect to energy efficiency, demand-response, and on-site generation issues
  • Represents competitive suppliers and producers of electricity and natural gas in regard to regulatory compliance and complaint defense

Awards and Distinctions

  • Recognized by The Best Lawyers in America as "Lawyer of the Year" 2016 (Harrisburg, Pa.) in Energy Law
  • Nominated by peers for inclusion in The Best Lawyers in America® for Energy Law

Recent Publications and Presentations


  • Member, American Bar Association, Public Utility, Communications and Transportation Law Section
  • Member, Pennsylvania Bar Association, past Chair, Public Utility Law Section
  • Member, Dauphin County Bar Association, Equal Professional Opportunity Committee
  • Adjunct Professor, Duquesne University, School of Leadership & Professional Advancement, 2006 - 2014
  • Board Member and Past President, Cumberland Valley Eagle Foundation
  • Head Coach, HMMS Youth Soccer Association, past Board Member
  • Veteran, United States Army
©2017 Spilman Thomas & Battle, PLLC
Michael J. Basile / Responsible Attorney