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 *
TYSON FOODS INC
   2. Issuer Name and Ticker or Trading Symbol
SYNTROLEUM CORP [("SYNM")] 		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)
2200 DON TYSON PARKWAY		 3. Date of Earliest Transaction (Month/Day/Year)
04/16/2009
(Street)

SPRINGDALE, AR 72762		 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 04/16/2009   M(1)   8,000,000 A $ 0.01 8,000,000 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
Warrants $ 0.01 04/16/2009   M(1)     8,000,000 10/21/2008 10/20/2012 Common Stock 8,000,000 $ 0.01 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
TYSON FOODS INC
2200 DON TYSON PARKWAY
SPRINGDALE, AR 72762		     X    
TYSON LIMITED PARTNERSHIP
2200 DON TYSON PARKWAY
SPRINGDALE, AR 72762		     X    
TYSON DONALD J
2200 DON TYSON PARKWAY
SPRINGDALE, AR 72762		     X    

Signatures

 By: by: R. Read Hudson, Vice President, Assoc. General Counsel and Secretary   04/17/2009
**Signature of Reporting Person Date
 By: Donald J. Tyson, Managing General Partner for   04/17/2009
**Signature of Reporting Person Date
 /s/ Tyson, Donald J.   04/17/2009
**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) On April 16, 2009, Tyson Foods, Inc. ("Tyson") exercised the Warrants granted on October 21, 2008 to purchase 8,000,000 shares of the issuer's common stock at the purchase price of $0.01 per share. The Warrants are owned directly by Tyson and may be deemed to be beneficially owned (i) by the Tyson Limited Partnership ("TLP") which has 69.76% of the voting rights in Tyson and (ii) by Donald J. Tyson who has approximately 54% combined interest as a general and limited partner in the TLP and therefore the TLP and Donald J. Tyson have an indirect beneficial ownership in the common stock held by Tyson. The TLP and Donald J. Tyson disclaim any beneficial ownership in the common stock held by Tyson.

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