PE  First Reserve Corporation

     Office Locations:

One Lafayette Place
Greenwich, CT 06830
Phone: 203-661-6601
Fax: 203-661-6729

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  • Middle Market



  • Energy & Clean Tech



    First Reserve is an independently owned firm whose current management team, in place since 1983, collectively has more than 300 years of energy investment experience. The firm has invested $18 billion and made over 100 platform acquisitions, First Reserve is the oldest and largest buyout group to focus exclusively on a strategy of diversified energy investments. First Reserve invests in a broad range of segments within the energy industry including: (i) Oilfield Services, such as drilling service providers and wellhead equipment manufacturers; (ii) Energy Infrastructure and Power, such as firms that engineer LNG and natural gas processing facilities or produce power; and (iii) Energy Reserves, such as oil, natural gas, coal producers, as well as uranium, iron ore and other minerals. First Reserve's partnership, First Reserve Fund XI, closed with approximately $8 billion in July 2006. First Reserve funds have completed principal transactions with an aggregate total value of over $10 billion. First Reserve generally targets investments in global energy companies with enterprise values of up to $10 billion.



      Fund Name



    Get funds under management for this firm including Fund name, Dollar size of fund raise, and Vintage with a National Database subscription or New York Database subscription.

    Investment Firm Key

       VC = Venture Capital
       PE = Private Equity
       A = Angel
       I = Incubator
       MB = Merchant Bank
       VD = Venture Debt
       FI = Family Investment Office
       FOF = Fund of Funds
       ED = Economic Development Office   
       TT = Technology Transfer Office
       CVC = Corporate Venture Capital
       SEC = Secondary Purchaser
       HF = Hedge Fund/Mutual Fund
    Venture Capital
    Seed Stage
    (includes "pre-seed," or
    concept stage)
    No Revenue
    Early StageMinimal
    Growth Stage
    (also called Mid-stage)
    Expansion Stage
    (also called Late-stage)
    $7M and greater
    Private Equity
    Lower Middle Market$10M-$249M
    Middle Market$250M-$499M
    Upper Middle Market$500M-$1B
    Large Cap>$1B

    Investment Team:

    Name   Title
    Get the complete investment team + individual email addresses for investment team partners. Get personal images, LinkedIn links, investment specialties, office locations and more with a National Database subscription or New York Database subscription.
    Alex T. Krueger President
    Cathleen M. Ellsworth Managing Director
    Claudi Santiago Managing Director and COO
    Francesco Giuliani Managing Director
    Jennifer C. Zarrilli Managing Director and CFO


    Portfolio companies include:

      9Ren Group
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      Accord Nuclear Resources
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      Acteon Group
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      AMCI Capital
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      Amromco Energy
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      Ansaldo Energia
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      Bahamas Oil Refining Company International
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      Brand Energy and Infrastructure Services
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      CHC Helicopter
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      China Coal Energy
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      Cobalt International Energy
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      Connect Resource Services
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      Dof Subsea
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      Energy Credit Partners
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      First Caribbean Power and Midstream
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      First ECA Midstream
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      Fort Detrick Energy
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      FR Midstream Holdings
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      Genpower Holdings
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      Glencore International
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      Kenersys Group
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      Midstates Petroleum
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      Mountaineer Keystone
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      Osage Bio Energy
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      Remora Energy
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      Southern Cross Coal Holdings
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