1、UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549FORM 10-K(Mark One)ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACTOF 1934 For the fiscal year ended:December 31,2017oro TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGEACT OF 193
2、4Commission File Number:001-33480CLEAN ENERGY FUELS CORP.(Exact name of registrant as specified in its charter)Delaware(State or other jurisdiction of incorporation)33-0968580(IRS Employer Identification No.)4675 MacArthur Court,Suite 800,Newport Beach,CA 92660(Address of principal executive offices
3、,including zip code)(949)437-1000(Registrants telephone number,including area code)Securities registered pursuant to Section 12(b)of the Act:Title of each class Name of each exchange on which registeredCommon Stock,par value$0.0001 per share The Nasdaq Stock MarketSecurities registered pursuant to s
4、ection 12(g)of the Act:NoneIndicate by check mark if the registrant is a well-known seasoned issuer,as defined in Rule 405 of the Securities Act.Yes o No xIndicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d)of the Act.Yes o No xIndicate by
5、check mark whether the registrant(1)has filed all reports required to be filed by Section 13 or 15(d)of the Securities Exchange Act of 1934during the preceding 12 months(or for such shorter period that the registrant was required to file such reports),and(2)has been subject to such filingrequirement
6、s for the past 90 days.Yes x No oIndicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site,if any,every Interactive Data Filerequired to be submitted and posted pursuant to Rule 405 of Regulation S-T(229.405 of this chapter)during the preceding 1