Baker & O'Brien, Inc.


People Details

Donald L. Flessner

Donald L. Flessner


Office | Dallas
tel(214) 368-7626
fax(214) 368-0190

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Career Highlights

Don Flessner is President of Baker & O’Brien, Inc., and serves on the firm’s Board of Directors.  He has more than 30 years of technical and commercial experience in the petroleum, chemicals, and fertilizers industries.  After beginning his career in specialty chemicals, Don’s experience at Sohio and BP Oil included technical services, capital project evaluation and management, operations management, wholesale marketing, supply logistics, and strategic planning.  Don’s responsibilities at BP Oil included implementation of several refinery capital projects and the preparation of capital investment strategies for its five U.S. refineries.

Since becoming a consultant in 1992, Don has completed a wide range of assignments in the upstream oil & gas, refining and marketing, gas processing, chemicals, and fertilizer industries.  These engagements have included due diligence on behalf of investors and financial institutions for acquisitions and construction projects around the world.  He has prepared valuations of refinery, transportation, and chemical manufacturing assets for companies, financial institutions, and government agencies.  He has served as a consulting expert and testifying expert in litigation involving major construction projects, commercial matters, product quality and testing, insurance claims, and industry standards and practices on behalf of operating companies, contractors, and insurers involved in the hydrocarbon and chemical process industries.  Don has testified as an expert witness in depositions, public hearings, jury trials, and international arbitrations.