Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Perseus ENRG Investment, L.L.C.
  2. Issuer Name and Ticker or Trading Symbol
Clean Energy Fuels Corp. [CLNE]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O PERSEUS, L.L.C.,, 2099 PENNSYLVANIA AVENUE, N.W., 9TH FL.
3. Date of Earliest Transaction (Month/Day/Year)
06/22/2007
(Street)

WASHINGTON, DC 20006
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 06/22/2007   S   292,171 D $ 11.298 6,364,971 D (1) (2)  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Perseus ENRG Investment, L.L.C.
C/O PERSEUS, L.L.C.,
2099 PENNSYLVANIA AVENUE, N.W., 9TH FL.
WASHINGTON, DC 20006
    X    
PEARL FRANK H
C/O PERSEUS, L.L.C.,
2099 PENNSYLVANIA AVENUE, N.W., 9TH FL.
WASHINGTON, DC 20006
    X    

Signatures

 Perseus ENRG Investment, L.L.C. /s/ Kenneth M. Socha, Executive Vice President   06/25/2007
**Signature of Reporting Person Date

 /s/ Rona Kennedy, Attorney-In-Fact   06/25/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) All of the securities reported herein are held by Perseus ENRG Investment, L.L.C. ("Perseus ENRG"). Perseus 2000, L.L.C. ("Perseus 2000") and Perseus 2000 Expansion, L.L.C. ("Perseus 2000 Expansion") are the members of Perseus ENRG and have previously contributed to Perseus ENRG all of the Clean Energy Fuels Corp. stock that they owned. The managing member of Perseus 2000 is Perseus 2000 Management, L.L.C., and the managing member of Perseus 2000 Management, L.L.C. is Perseuspur, L.L.C. Likewise, the managing member of Perseus 2000 Expansion is Perseus 2000 Expansion Management, L.L.C., and the managing member of Perseus 2000 Expansion Management, L.L.C. is Perseuspur, L.L.C. Frank H. Pearl, individually, owns 72.7% of Perseuspur, L.L.C. Mr. Pearl also is the sole director and sole shareholder of Rappahannock Investment Company, a Delaware corporation, which in turn owns the remaining 27.3% of Perseuspur, L.L.C. (Continued in footnote 2)
(2) (Continued from footnote 1) Mr. Pearl has been included as a Reporting Person in this statement solely because of this control he exercises over Perseus ENRG. By virtue of such control, Mr. Pearl may be deemed a beneficial owner of the securities being reported.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.