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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
KASBAR MICHAEL J
  2. Issuer Name and Ticker or Trading Symbol
WORLD FUEL SERVICES CORP [INT]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President and COO
(Last)
(First)
(Middle)
C/O WORLD FUEL SERVICES CORPORATION, 9800 N.W. 41ST STREET, SUITE 400
3. Date of Earliest Transaction (Month/Day/Year)
05/07/2010
(Street)

MIAMI, FL 33178
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ 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 05/07/2010   M   6,904 A $ 2.975 1,049,167 D  
Common Stock 05/07/2010   F   2,404 (1) D $ 26.1 (2) 1,046,763 D  
Common Stock 05/07/2010   S(3)   4,500 D $ 27.5 (4) 1,042,263 D  

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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
Stock Option $ 2.975 05/07/2010   M     6,904 10/11/2003 10/11/2011 Common Stock 6,904 $ 0 (5) 87,465 (6) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
KASBAR MICHAEL J
C/O WORLD FUEL SERVICES CORPORATION
9800 N.W. 41ST STREET, SUITE 400
MIAMI, FL 33178
  X     President and COO  

Signatures

 /s/ Michael J. Kasbar   05/11/2010
**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) The issuer withheld a sufficient amount of option shares in order to pay the exercise price and related taxes for the option exercise reported on Table II of this Form.
(2) The number shown is the closing price for the issuer's common stock on the NYSE on May 7, 2010.
(3) The sales reported in this Form 4 were effected pursuant to a pre-arranged, non-discretionary trading plan adopted by the reporting person on March 15, 2010 in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934.
(4) The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions ranged from $27.50 to $27.53. The reporting person has provided the issuer and will provide any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
(5) These options were granted to the reporting person, without payment therefor, as compensation for serving as an executive officer of the issuer.
(6) These options were previously reported as covering 23,590 shares at an exercise price of $11.90 per share, but were adjusted to reflect the stock splits on February 1, 2005 and December 7, 2009.

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