X0306 4 2020-02-25 0 0001368265 Clean Energy Fuels Corp. CLNE 0001400258 Pratt Mitchell W C/O CLEAN ENERGY FUELS CORP. 4675 MACARTHUR COURT, SUITE 800 NEWPORT BEACH CA 92660 0 1 0 0 COO and Secretary Common Stock 2020-02-25 4 A 0 34200 0 A 722449 D Stock Option (Right to Buy) 2.56 2020-02-25 4 A 0 51300 0 A 2030-02-24 Common Stock 51300 51300 D Represents an award of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock upon the vesting and settlement of the RSU. 34% of the total shares subject to the RSU or stock option award, as applicable, vest on the first anniversary of the date of grant, and 33% vest on each anniversary thereafter until the award is fully vested. Includes 12,000 shares of the Issuer's common stock that were acquired upon the exercise for cash of an in-the-money stock option on March 19, 2012, which exercise was inadvertently not reported on a Statement of Changes in Beneficial Ownership on Form 4. /s/ J. Nathan Jensen, Attorney-in-Fact, for Mitchell Pratt 2020-02-26