Form: S-1

General form of registration statement for all companies including face-amount certificate companies

September 6, 2006

Documents


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Exhibit 21.1

Subsidiaries

    •
    Clean Energy Fueling Services Corp.

    •
    Clean Energy

    •
    Clean Energy Construction

    •
    Clean Energy Finance, LLC

    •
    Blue Energy General, LLC

    •
    Blue Energy Limited, LLC

    •
    Clean Energy & Technologies LLC

    •
    Natural Fuels Company LLC

    •
    Natural/Total Limited Liability Company

    •
    Natural/Peoples Limited Liability Company

    •
    Clean Energy LNG, LLC

    •
    Clean Energy Texas LNG, LLC

    •
    Blue Fuels Group, LP

    •
    DFW Airport CNG Partnership, LLP

    •
    TranStar Energy Company, LP

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