SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
MATLOCK RONALD L
(Last) (First) (Middle)
300 JOHNNY BENCH DRIVE
(Street)
OKLAHOMA CITY OK 73104
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
SONIC CORP [ SONC ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Sr. Vice President
3. Date of Earliest Transaction (Month/Day/Year)
01/30/2007
4. If Amendment, Date of 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
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 01/30/2007 M 83,381 A $2.37 125,556 D
common stock 01/30/2007 S 83,381 D $21.89 42,175 D
common stock 01/30/2007 M 29,921 A $4.25 72,096 D
common stock 01/30/2007 S 29,921 D $21.89 42,175 D
common stock 01/30/2007 M 22,233 A $5.73 64,408 D
common stock 01/30/2007 S 22,233 D $21.89 42,175 D
common stock 01/30/2007 M 26,202 A $5.71 68,377 D
common stock 01/30/2007 S 26,202 D $21.89 42,175 D
common stock 01/30/2007 M 23,387 A $7.36 65,562 D
common stock 01/30/2007 S 23,387 D $21.89 42,175 D
common stock 01/30/2007 M 14,493 A $13.03 56,668 D
common stock 01/30/2007 S 14,493 D $21.89 42,175 D
common stock 01/30/2007 M 18,287 A $12.09 60,462 D
common stock 01/30/2007 S 18,287 D $21.89 42,175 D
common stock 01/30/2007 M 15,413 A $14.22 57,588 D
common stock 01/30/2007 S 15,413 D $21.89 42,175 D
common stock 01/30/2007 M 5,401 A $21.65 47,576 D
common stock 01/30/2007 S 5,401 D $21.89 42,175 D
common stock 01/30/2007 M 14,553 A $7.36 56,728 D
common stock 01/30/2007 M 18,962 A $5.71 75,690 D
common stock 01/30/2007 M 18,449 A $5.73 94,139 D
common stock 01/30/2007 M 8,450 A $12.09 102,589 D
common stock 01/30/2007 M 8,040 A $13.03 110,629 D
common stock 01/30/2007 M 20,946 A $4.25 131,575 D
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 Securities Underlying Derivative Security (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: 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
non-qualified stock option $2.37 01/30/2007 M 83,381 05/09/2000 05/09/2007 common stock 83,381 $2.37 0 D
non-qualified stock option $4.25 01/30/2007 M 29,921 04/30/2001 04/30/2008 common stock 29,921 $4.25 0 D
non-qualified stock option $5.73 01/30/2007 M 22,233 04/27/2002 04/27/2009 common stock 22,233 $5.73 0 D
non-qualified stock option $5.71 01/30/2007 M 26,202 04/25/2003 04/25/2010 common stock 26,202 $5.71 0 D
non-qualified stock option $7.36 01/30/2007 M 23,387 04/16/2004 04/16/2011 common stock 23,387 $7.36 0 D
non-qualified stock option $13.03 01/30/2007 M 14,493 04/30/2005 04/30/2012 common stock 14,493 $13.03 0 D
non-qualified stock option $12.09 01/30/2007 M 18,287 04/10/2006 04/10/2013 common stock 18,287 $12.09 0 D
non-qualified stock option $14.22 01/30/2007 M 15,413 04/29/2006 04/29/2014 common stock 15,413 $14.22 675 D
non-qualified stock option $14.22 01/31/2007 J(1) 675 (2) 01/31/2007 common stock 675 $14.22 0 D
non-qualified stock option $21.65 01/30/2007 M 5,401 04/06/2006 04/06/2015 common stock 5,401 $21.65 6,181 D
non-qualified stock option $21.65 01/31/2007 J(1) 6,181 (2) 01/31/2007 common stock 6,181 $21.65 0 D
non-qualified stock option $23.08 01/31/2007 J(1) 11,295 (2) 01/31/2007 common stock 11,295 $23.08 0 D
incentive stock option $14.22 01/31/2007 J(1) 7,032 (2) 01/31/2007 common stock 7,032 $14.22 0 D
incentive stock option $21.65 01/31/2007 J(1) 4,617 (2) 01/31/2007 common stock 4,617 $21.65 0 D
incentive stock option $23.08 01/31/2007 J(1) 4,332 (2) 01/31/2007 common stock 4,332 $23.08 0 D
Explanation of Responses:
1. Expiration of options with no value received.
2. Unvested options expired at the end of the reporting person's term as an officer.
Remarks:
/s/ Ronald L. Matlock 02/01/2007
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.