Company Leadership


Michael W. Leger, P.E.
President & CEOGraduated from Louisiana State University in 1971 with BS in Chemical Engineering. Formerly with Texaco and CITGO Petroleum.  Also served as President/CEO of small independent U.S. refining company. Expertise in petroleum downstream economics, fair market value analysis, feasibility/ competitive evaluations, transactional due diligence, strategic planning studies, plant management, independent engineer engagements, plant startup, environmental assessments, and expert testimony. Licensed Professional Engineer (Texas).
John R. Auers, P.E.
Executive Vice PresidentUniversity of Nebraska BSChE (1980) and University of Houston MBA (1985). Formerly with Exxon. Experienced in facilities planning, computer operations, process control, refinery evaluations, refinery sales, and application of refinery linear programs. Leads the firm’s activities in forecasting and Outlook publications. Licensed Professional Engineer (Texas and Nebraska).
Thomas R. Hogan, P.E.
Executive Vice PresidentGraduated in 1971 from Michigan State University with BSChE degree. Formerly associated with Mobil Oil and Husky. Experienced in planning and economics, linear programs, petroleum transportation and trading, environmental assessments and environmental fuels compliance and litigation support. Leads the firm’s activities in fuels compliance consulting. Licensed Professional Engineer (Texas).
Malcolm M. Turner, P.E.
FounderGraduate of Rice University with BA (1958) and MSChE (1959) degrees. Formerly with Conoco. Experienced in facility appraisals, acquisitions and reorganizations, venture analysis and development, economic and feasibility studies, financial planning, crude oil marketing, pipelines, design and operations of refinery and petrochemical processes, and expert testimony. Licensed Professional Engineer (Texas).
Elizabeth Hilbourn, P.E
Vice PresidentGraduated from the University of Minnesota with BSChE degree (1989) and from the Illinois Institute of Technology with MBA (1996) and is a Member Society of Women Engineers and American Institute of Chemical Engineers.  Experienced with EPA reporting, renewable fuel producer registration and 3rd party engineering reviews and RIN due diligence.  Has assisted with foreign EPA registrations in the Netherlands, Denmark, Italy and Argentina. Is also experienced in process engineering, process design, linear programming, short-term planning and strategic planning in the refining industry as well as R&D experience in catalysis.  Licensed Professional Engineer (Texas).
Samuel H. Davis
Vice President, Strategy & Business DevelopmentGraduated from Drexel University with BSChE degree (2001) and University of Houston with MBA (2007). Formerly with Wood Mackenzie and Sunoco. Has over 20 years’ experience across oil markets, refining and petrochemicals. Leads TM&C business development activities and works with clients in strategic, due diligence and competitive assessment assignments.
Shanda B. Thomas
Corporate Secretary and Business ManagerGraduate of Texas A&M University with a BA (2005) and Texas State University with a MA (2007). Came to TM&C in 2007. Experienced in EPA Moderated Transaction System (EMTS) to provide RIN management services, technical assistance for attestation services and fuels regulations reporting. IT support, data management, infrustructure management, web development and communications, accounts receivable and payable. Responsible for company financial accounting, billings, and benefits.
John M. Mayes
Vice PresidentGraduated from Texas A&M University in 1976 with BSChE degree. Formerly associated with Gulf Oil, BP, Ultramar, and Fina/Alon. Experienced in refinery planning and economics, linear programming, wholesale and retail fuels marketing, product trading, pipeline and terminal economics and operations, and crude oil evaluations.
Robert Auers
Senior Consultant
Graduated from the University of Texas at Austin in 2013 with a B.S. in Chemical Engineering.  Formerly with Western Refining.  Experience in petroleum refining economics, process engineering, process design, and HazOp review.  He is a current member of Turner, Mason & Company’s Outlook team.
Dan Cronin
Senior ConsultantGraduated from the University of Windsor with a B.Sc. (1998) and the University of Victoria with an MBA (2000).  Formally with Purvin & Gertz Energy Consultants, Petro-Canada/Suncor, Cenovus, and Enbridge Pipelines.  Possesses over 15 years of experience in crude oil fundamental analysis and business development activities. Currently leading the Turner, Mason & Company initiative of establishing a stronger presence in Calgary, AB Canada..