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Richard M. Petkun focuses his practice on international tax planning, corporate acquisitions, and tax controversies.

Richard has wide-ranging experience in tax planning for real estate developers and construction companies. Having practiced as tax counsel for a Houston-based international oil company, he also has transactional experience in the oil industry, including cross-border tax planning for major producing properties and development ventures in Africa, Canada and the UK sector of the North Sea.

A skilled practitioner in the tax controversy area, Richard has dealt with IRS examination teams in various large-case corporate audits and complex partnership cases.


  • International tax planning
  • Tax controversies
  • Real estate taxation
  • Oil and gas taxation
  • Corporate acquisitions and reorganizations
  • Joint ventures
  • Debt restructuring and work-outs
  • Sovereign wealth investments
  • Global energy and infrastructure


Recognition & Leadership

  • Member, American Bar Association, Section of Taxation
  • Member, Colorado Bar Association
  • Member, Denver Bar Association


  • J.D., Harvard Law School
  • A.B., cum laude, Harvard University
  • Colorado
  • French, Conversational