• Hart Energy Conferences speaker David Deckelbaum

    David Deckelbaum

    Cowen and Company
    Managing Director, Energy – Oil & Gas Exploration and Production

    Mr. David Deckelbaum, CFA is a Managing Director and senior analyst covering the oil & gas exploration and production sector. He joined Cowen in 2018 from Keybanc Capital Markets, where he led the firm’s energy research coverage. Prior to Keybanc, Mr. Deckelbaum worked on both the buy-side and sell-side at Millennium Partners, UBS and Bank of America following both E&P and oilfield service stocks. Mr. Deckelbaum holds a BBA with concentrations in Finance and Information Systems from the George Washington University and is a CFA Charterholder.

  • Hart Energy Conferences speaker Andrew Dittmar

    Andrew Dittmar


    Andrew joined Enverus (PLS) in 2014 and is part of the Enverus Market Research Group with a focus on M&A. He specializes in deal analysis, research and valuations for upstream assets and tracks industry M&A trends and outlooks. He has a BBA in Finance from Texas A&M University and a JD from The University of Texas School of Law.

  • Bill Marko

    Bill Marko

    Jefferies LLC
    Managing Director

    William "Bill" Marko is a managing director of Jefferies LLC in the Energy Investment Banking Group. He has managed more than $70 billion of asset and corporate transactions. He specializes in applying detailed technical evaluations to M&A transactions. While his activities are focused in the U.S., Marko also works on worldwide projects with Jefferies’ London based energy team and he heads Jefferies’ Canadian upstream activities. Prior to joining Randall & Dewey, subsequently purchased by Jefferies, he worked more than 18 years in various engineering, operations and commercial roles at Mobil Oil. With more than 37 years of industry experience in worldwide acquisition, divestment and new business development, he has evaluated transactions in all major U.S. basins and more than 70 countries. Marko is a registered Professional Engineer in Louisiana and is Chair of the Tulane University President’s Council and a member of the Board of Advisors of the Tulane School of Science & Engineering.

  • Stephen C. Szalkowski

    Stephen C. Szalkowski

    Latham & Watkins LLP
    Deputy Office Managing Partner

    Stephen C. Szalkowski is the Deputy Office Managing Partner of the Houston office and a member of the Mergers & Acquisitions Practice. He advises clients on domestic energy transactions, with an emphasis on acquisitions and divestitures, joint ventures, and private equity investments.

    Mr. Szalkowski has significant experience in:

    • JVs and other strategic combinations, including carbon capture and sequestration projects and the development of onshore and offshore oil and gas projects

    • Acquisitions and divestitures of assets and businesses, with a particular focus on the upstream, midstream, and water sectors of the oil and gas industry

    • Complex commercial contracts, including JOAs, hydrocarbon and water gathering, processing and disposal agreements, hydrocarbon and CO2 transportation and offtake agreements, and services agreements relevant to the energy industry