SONIC CORP
DEF 14A, 1998-12-18
EATING PLACES
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<PAGE>

                               SCHEDULE 14A INFORMATION

PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934
                                  (AMENDMENT NO.   )

Filed by the Registrant [ X ]
Filed by a party other than the Registrant [   ]

Check the appropriate box:

[   ]    Preliminary Proxy Statement
[   ]    Confidential, for Use of the Commission Only (as permitted by Rule
         14a-6(e)(2))
[ X ]    Definitive Proxy Statement
[   ]    Definitive Additional Materials
[   ]    Soliciting Material Pursuant to Section 240.14a-11(c) or Section
         240.14a-12

                                    SONIC CORP.                    
                   ------------------------------------------------
                   (Name of Registrant as Specified In Its Charter)

       ------------------------------------------------------------------------
       (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[ X ]    No fee required
[   ]    Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11

          1)   Title of each class of securities to which transaction applies:

          2)   Aggregate number of securities to which transaction applies:

          3)   Per unit price or other underlying value of transaction computed
               pursuant to Exchange Act Rule 0-11 (set forth the amount on which
               the filing fee is calculated and state how it was determined):

          4)   Proposed maximum aggregate value of transaction:

          5)   Total fee paid:

[   ]    Fee paid previously with preliminary materials.

[   ]    Check box if any part of the fee is offset as provided by Exchange Act
         Rule 0-11(a)(2) and identify the filing for which the offsetting fee
         was paid previously.  Identify the previous filing by registration
         statement number, or the Form or Schedule and the date of its filing.

          1)   Amount previously paid:

          2)   Form, Schedule or Registration Statement No.:

          3)   Filing Party:

          4)   Date Filed:

Notes:

<PAGE>
                      NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                                          
                            TO BE HELD JANUARY 20, 1999
                                          
                                          
                                          
                         [Sonic - America's Drive-In Logo]
                                          
                                          
                                          
                                    SONIC CORP.
                                          
                                  101 PARK AVENUE
                           OKLAHOMA CITY, OKLAHOMA 73102


To the Stockholders of Sonic Corp.

     The annual meeting of the stockholders of Sonic Corp. (the "Company") 
will take place in the 20th Century Ballroom of the Westin Hotel, One North 
Broadway, Oklahoma City, Oklahoma, on Wednesday, January 20, 1999, at 1:30 
p.m., for the purpose of considering and acting upon the following matters:

          (1)  The election of three nominees to the Board of Directors.

          (2)  The approval and ratification of an amendment to the 1991 Sonic
               Corp. Stock Option Plan.

          (3)  The approval and ratification of an amendment to the 1991 Sonic
               Corp. Directors' Stock Option Plan.

          (4)  The approval and ratification of the selection of independent 
               auditors.
     
          (5)  Any other business which properly may come before the meeting or 
               any adjournment of the meeting.
     
     The Board of Directors has fixed the close of business on November 30, 
1998, as the record date for the determination of the holders of the 
Company's voting common stock entitled to receive notice of the annual 
meeting and to vote at the meeting.

     To ensure the presence of a quorum at the annual meeting, please sign 
and promptly return the enclosed proxy card in the accompanying 
self-addressed envelope, which requires no postage if mailed in the United 
States.

                                       By order of the Board of Directors,



                                       Ronald L. Matlock, Secretary

Oklahoma City, Oklahoma
December 18, 1998

<PAGE>

                                   PROXY STATEMENT
                    FOR THE ANNUAL MEETING OF THE STOCKHOLDERS OF
                                    SONIC CORP.

                        TO BE HELD WEDNESDAY, JANUARY 20, 1999

                               SOLICITATION OF PROXIES

SOLICITATION

     Sonic Corp. (the "Company") is furnishing this proxy statement to the 
stockholders of the Company to solicit their proxies for use at the annual 
meeting of stockholders to take place on Wednesday, January 20, 1999, and at 
any adjournment of the meeting.  The Company also may use the services of the 
Company's directors, officers and employees to solicit proxies personally or 
by telephone.  The Company regularly retains the services of Corporate 
Communications, Inc., 523 Third Avenue South, Nashville, Tennessee, to assist 
with the Company's investor relations and other stockholder communications 
issues.  Corporate Communications, Inc. may assist in the solicitation of the 
proxies and will not receive any additional compensation for those services. 
The Company will bear all of the costs of preparing, printing, assembling and 
mailing this proxy statement and the proxy card and all of the costs of the 
solicitation of the proxies.

REIMBURSEMENT OF NOMINEES

      The Company will reimburse any bank, broker-dealer, or other custodian, 
nominee or fiduciary for its reasonable expenses incurred in completing the 
mailing of proxy materials to the beneficial owners of the Company's voting 
common stock.

REVOCATION OF PROXY

     Any stockholder giving his proxy may revoke it at any time before its 
exercise by notifying Ronald L. Matlock, Secretary of the Company, by 
telecopy or in writing.  The persons named on the proxy card will vote the 
proxies at the annual meeting, if received in time and not revoked.

MAILING OF PROXY STATEMENT AND PROXY CARD

     The Company has had this proxy statement and the proxy card mailed to 
its stockholders on or about December 18, 1998.

STOCKHOLDER PROPOSALS  

     In order for the Company to include a stockholder proposal in the proxy 
materials for the next annual meeting of stockholders, a stockholder must 
deliver the proposal to the Secretary of the Company no later than August 16, 
1999.

                             VOTING RIGHTS AND PROCEDURE

     Only the record holders of shares of the voting common stock of the 
Company as of the close of business on November 30, 1998, will have the right 
to vote at the annual meeting.  As of the close of business on that date, the 
Company had 18,944,831 shares of common stock issued and outstanding 
(excluding 1,692,370 shares of common stock held as treasury stock).  Each 
stockholder of record will have one vote for each share of common stock of 
the Company that the stockholder owned as of the record date.  All shares of 
common stock may vote on all matters coming before the annual meeting, and a 
majority of all of the outstanding shares of common stock of the Company 
entitled to vote at the meeting, represented in person or by proxy, will 
constitute a quorum for the meeting. The Company will treat all abstentions 
and nominee non-votes as present or represented at the meeting for the 
purposes of determining whether a quorum exists for the meeting.

<PAGE>

                                ELECTION OF DIRECTORS

GENERAL

     The Board of Directors proposes the election of three directors.  Each 
of the nominees, if elected, will hold office for a term of three years and 
until the stockholders elect his qualified successor.  Two of the nominees, 
Messrs. Rainbolt and Werries, currently serve as directors of the Company.  
If any of the nominees become unable or unwilling to accept the election or 
to serve as a director (an event which the Board of Directors does not 
anticipate), the person or persons named in the proxy will vote for the 
election of the person or persons recommended by the Board of Directors.

     The certificate of incorporation and bylaws of the Company provide for 
the division of the Board of Directors into three classes, each class 
consisting (as nearly as possible) of one-third of the whole.  The term of 
office of one class of directors expires each year, with each class of 
directors being elected for a term of three years and until the stockholders 
elect their qualified successors. The Company's bylaws provide that the Board 
of Directors by resolution from time to time may fix the number of directors 
that shall constitute the whole Board of Directors.  The Board of Directors 
currently has set the number of directors at no more than nine.

     Unless the context indicates otherwise, the term "Company," when used in 
this proxy statement, refers to Sonic Corp. and its subsidiaries.

NOMINEES

     The following table sets forth the name, principal occupation, age, year 
in which the individual first became a director, and year in which the 
director's term will expire (if elected) for each nominee for election as a 
director at the annual meeting of stockholders.

<TABLE>
<CAPTION>
     NAME AND                      FIRST BECAME                  TERM
     PRINCIPAL OCCUPATION          A DIRECTOR                    EXPIRES        AGE
     --------------------          ------------                  -------        ---
     <S>                           <C>                           <C>            <C>
     Kenneth L. Keymer(1)                  --                    2002           50
     H.E. "Gene" Rainbolt(2)       January, 1996                 2002           69
     E. Dean Werries(3)            March, 1991                   2002           69
</TABLE>

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE ELECTION OF EACH OF THE
THREE NOMINEES FOR ELECTION AS A DIRECTOR.

- --------------------
     (1) Kenneth L. Keymer has served as President and a director of Sonic 
Industries Inc., the Company's franchise operations subsidiary, since August 
of 1996, and as the Executive Vice President and Chief Operating Officer of 
the Company since January of 1998.  From June of 1994 to August of 1996, Mr. 
Keymer served as Executive Vice President of Operations for the Memphis, 
Tennessee region of Perkins Family Restaurants, a subsidiary of Tennessee 
Restaurant Corporation of Itasca, Illinois.  From March of 1993 to June of 
1994, Mr. Keymer served as Senior Vice President of Operations for the then 
Chicago-based Boston Chicken, Inc.  From August of 1990 to March of 1993, he 
served as the Zone Vice President in Chicago, Illinois, for Taco Bell.

     (2) Mr. Rainbolt has served as Chairman of the Board of BancFirst Corp. 
of Oklahoma City, Oklahoma, since 1989.  From 1985 to 1989, Mr. Rainbolt 
served as Chairman of the Board of United Community Corp., a bank holding 
company in Oklahoma City, Oklahoma, and a predecessor of BancFirst Corp.  
From 1974 to 1985, he served as Chairman of the Board of Federal National 
Bank of Shawnee, Oklahoma.

     (3) Mr. Werries has served as Chairman of the Board of the Company since 
April of 1995 and as a director of the Company since March of 1991.  From 
1988 through October of 1993, he served as the Chief Executive 

                                       2

<PAGE>

Officer of Fleming Companies, Inc. ("Fleming"), a wholesale food distribution 
company, and served as Chairman of the Board of Directors of Fleming from 
1989 through April of 1994.  Mr. Werries is a past Chairman of the Food 
Marketing Institute in Washington, D.C. He is a director of Carr-Gottstein 
Foods Co., a retail grocery company.

OTHER DIRECTORS

     The following table sets forth the name, principal occupation, age, year 
in which the individual first became a director, and year in which the 
director's term will expire for each director who will continue as a director 
after the annual meeting of stockholders.

<TABLE>
<CAPTION>
     NAME AND                      FIRST BECAME                  TERM
     PRINCIPAL OCCUPATION          A DIRECTOR                    EXPIRES        AGE
     --------------------          ------------                  -------        ---
     <S>                           <C>                           <C>            <C>
     Dennis H. Clark(1)            April, 1992                     2000         51
     J. Clifford Hudson(2)         August, 1993                    2001         44
     Leonard Lieberman(3)          December, 1988                  2000         69
     Frank E. Richardson(4)        March, 1991                     2000         58
     Robert M. Rosenberg(5)        April, 1993                     2001         60
</TABLE>

- --------------------
     (1) Mr. Clark has served as President of Encore Restaurants, Inc., a
franchisee of the Company, since November of 1992.  Mr. Clark served as
President of Sonic Restaurants, Inc., the Company's restaurant operations
subsidiary, from March of 1987 until October of 1994.

     (2) Mr. Hudson has served as President and Chief Executive Officer of 
the Company since April of 1995 and has served as a director of the Company 
since August of 1993.  He served as President and Chief Operating Officer of 
the Company from August of 1994 until April of 1995, and he served as 
Executive Vice President and Chief Operating Officer from August of 1993 
until August of 1994. From August of 1992 until August of 1993, Mr. Hudson 
served as Senior Vice President and Chief Financial Officer of the Company.  
Since October of 1994, Mr. Hudson has served as Chairman of the Board of the 
Securities Investor Protection Corporation, the federally-chartered 
organization which serves as the insurer of customer accounts with brokerage 
firms.

     (3) Mr. Lieberman served as the Chief Executive Officer and a director 
of Supermarkets General Corporation from 1983 to 1987.  From 1987 to the 
present, Mr. Lieberman has devoted his time to private investments.  From 
January through April of 1991, Mr. Lieberman served as Chairman, President 
and Chief Executive Officer of Outlet Communications, Inc.  Mr. Lieberman 
serves as a director of Celestial Seasonings, Inc.; Republic National Bank of 
New York; and Republic New York Corporation.

     (4) Mr. Richardson has served as Chairman of F. E. Richardson & Co., 
Inc. of New York City, a firm specializing in acquisitions and investments in 
growth companies, since June of 1995.  From 1986 to June of 1995, Mr. 
Richardson served as President of Wesray Capital, a firm which also 
specialized in acquisitions and investments in growth companies.

     (5) Mr. Rosenberg served as President and Chief Executive Officer of 
Allied Domecq Retailing USA ("Allied") from May of 1993 until his retirement 
in August of 1998.  Allied is the parent of Dunkin' Donuts, Inc. and 
Baskin-Robbins, Inc. Mr. Rosenberg served as President and Chief Executive 
Officer of Dunkin' Donuts, Inc. from 1963 until May of 1993, and he served as 
President and Chief Executive Officer of Baskin-Robbins, Inc. from December 
of 1992 until May of 1993.  Mr. Rosenberg currently serves as an honorary 
director of the National Restaurant Association, as well as a trustee of the 
educational foundation of the International Franchise Association ("IFA").  
Mr. Rosenberg is a past president of the IFA.

                                       3

<PAGE>

CHAIRMAN EMERITUS OF THE BOARD OF DIRECTORS

     Troy Smith, Sr., founder of the Company, has served as Chairman Emeritus 
of the Board of Directors since May of 1991.  As Chairman Emeritus, Mr. Smith 
has the right to attend and participate on a non-voting basis at all meetings 
of the Board of Directors and receives the same director fees as the 
directors.

COMMITTEES AND MEETINGS OF THE BOARD OF DIRECTORS

     The Company has a Nominating Committee, an Audit Committee, a 
Compensation Committee, and a Stock Plan Committee.

     NOMINATING COMMITTEE.  The Nominating Committee's function consists of 
nominating individuals to serve as directors of the Company.  On November 17, 
1998, the Nominating Committee met and nominated the three individuals named 
above for election as directors at the annual meeting of stockholders.  The 
members of the Nominating Committee consist of all of the directors of the 
Company.  The Nominating Committee held one meeting during the Company's last 
fiscal year.  The Nominating Committee will consider nominees recommended by 
the Company's stockholders.  In order to recommend a nominee for the next 
annual meeting, stockholders must deliver the recommendation in writing to 
the Company on or before August 16, 1999, addressed to the attention of 
Ronald L. Matlock, Secretary of the Company, and must provide the full name, 
address, and business history of the recommended nominee.

     AUDIT COMMITTEE.  The Audit Committee's functions include (a) reviewing 
and recommending to the Board of Directors (subject to stockholder approval) 
the independent auditors selected to audit the Company's financial 
statements, including the review and approval of the fees charged for all 
services by the independent auditors; (b) reviewing the scope of the annual 
audit plan; (c) reviewing the audited financial statements of the Company; 
(d) reviewing the management letter comments from the Company's independent 
auditors, including management's responses and plans of action; (e) reviewing 
the proposed annual audit plan and objectives, quarterly reports of audit 
activity, and adequacy of staff; (f) reviewing from time to time the 
Company's general policies and procedures with respect to auditing, 
accounting, and the application of financial resources; (g) reviewing any 
other matters and making special inquiries and investigations referred to it 
by the Board of Directors; and (h) making other recommendations to the Board 
of Directors as the committee may deem appropriate.  The members of the Audit 
Committee are H. E. Rainbolt (Chairman), Robert M. Rosenberg, and E. Dean 
Werries.  W. Scott McLain, Vice President, Chief Financial Officer, and 
Treasurer of the Company, serves as a non-voting, ex-officio member of the 
committee.  The Audit Committee held four meetings during the Company's last 
fiscal year.

     COMPENSATION COMMITTEE.  The Compensation Committee's functions include 
reviewing and making recommendations to the Board of Directors concerning the 
base salary, annual incentive bonus awards, and other compensation awards to 
the executive officers of the Company.  The members of the Compensation 
Committee are Leonard Lieberman (Chairman), Frank E. Richardson, and J. 
Clifford Hudson. The Compensation Committee held two meetings during the 
Company's last fiscal year.

     STOCK PLAN COMMITTEE.  The Stock Plan Committee's functions include 
administering the Company's various stock option, stock incentive, and stock 
purchase plans.  The members of the Stock Plan Committee are Leonard 
Lieberman (Chairman), Frank E. Richardson, and E. Dean Werries.  The Stock 
Plan Committee held four meetings during the Company's last fiscal year.

     MEETINGS OF THE BOARD OF DIRECTORS.  The Board of Directors of the 
Company held five meetings during the Company's last fiscal year.  During 
that period, no incumbent director attended fewer than 75% of the aggregate 
number of meetings of the Board of Directors and of all committees on which 
he served.

                                       4

<PAGE>

EXECUTIVE COMPENSATION

     SUMMARY COMPENSATION TABLE.  The following table sets forth the 
compensation paid for the last three fiscal years to the Company's chief 
executive officer and the Company's four other most highly compensated 
executive officers for all services rendered in all capacities to the Company 
and its subsidiaries.

<TABLE>
<CAPTION>
                                                                                                        LONG-TERM
                                                     ANNUAL COMPENSATION                               COMPENSATION
                                                  --------------------------                   ---------------------------
                                                                                   OTHER        SECURITIES        ALL
     NAME AND                                                                      ANNUAL       UNDERLYING       OTHER
     PRINCIPAL                                                                    COMPEN-          STOCK        COMPEN-
     POSITION                      YEAR           SALARY($)      BONUS($)(1)    SATION($)(2)   OPTIONS(#)(3)  SATION($)(4)
     ---------                     ----           ---------      -----------    ------------   -------------  ------------
<S>                                <C>            <C>            <C>            <C>            <C>            <C>         
J. Clifford Hudson                 1998            308,333         175,095           --            22,675         5,437
  President and Chief              1997            264,583         111,438           --            34,376         5,328
  Executive Officer                1996            241,667          59,375           --            50,481         4,779
                                                                                                                          
Kenneth L. Keymer                  1998            213,333         118,775           --            38,198        10,206
  President of Sonic               1997            188,750          61,849           --            32,063       106,105
  Industries Inc.                  1996             10,669              --           --            30,000             0
                                                                                                                          
Pattye L. Moore                    1998            166,667          67,929           --            10,989         5,467
  Senior Vice President            1997            137,500          45,571           --            16,875         4,941
  of Marketing and                 1996            113,333          29,367           --            20,194         4,249
  Brand Development
                                                                                                                          
Ronald L. Matlock                  1998            155,467          61,899           --            10,047         8,173
  Vice President, General          1997            143,733          42,332           --            24,705         1,524
  Counsel and Secretary            1996             64,167           9,290           --            30,000             0
                                                                                                                          
W. Scott McLain                    1998            135,266          53,572           --             8,791         5,473
   Chief Financial                 1997             99,668          27,596           --            27,876         2,024
   Officer                         1996             34,372              --           --            18,269            --
</TABLE>

     (1) The amounts include incentive bonus awards granted pursuant to the 
incentive bonus program described under "Report on Executive Compensation," 
as well as a Christmas bonus equal to one-half month's base salary.

     (2) The amount of other annual compensation did not exceed the lesser of 
$50,000 or 10% of the annual salary and bonus reported for the named 
individual.

     (3) The amounts reflect adjustments made to the number of shares of 
common stock underlying the options pursuant to the antidilution provisions 
of the 1991 Sonic Corp. Stock Option Plan as a result of a three-for-two 
stock split in the form of a stock dividend effective May 11, 1998.

     (4) The amounts include the Company's matching contribution to the 
Company's defined contribution plan, premiums for life insurance, and moving 
expenses paid on behalf of the named individuals.  During the last fiscal 
year, the Company made matching contributions to the Company's 401(k) defined 
contribution plan in the amount of $4,469 for Mr. Hudson, $8,165 for Mr. 
Keymer, $5,280 for Ms. Moore, $5,793 for Mr. Matlock, and $4,845 for Mr. 
McLain.  During the last fiscal year, the Company paid life insurance 
premiums in the amount of $968 for Mr. Hudson,  $2,041 for Mr. Keymer, $187 
for Ms. Moore, $2,380 for Mr. Matlock, and $628 for Mr. McLain.  The Company 
reimbursed Mr. Keymer for $105,505 in moving and relocation expenses incurred 
in connection with his relocation to Oklahoma City during the fiscal year 
ended August 31, 1997.

                                       5

<PAGE>

     STOCK OPTION TABLE.  The following table sets forth information 
regarding the stock options granted during the last fiscal year to the 
Company's chief executive officer and the other executive officers named 
above.

<TABLE>
<CAPTION>
                                                                                              POTENTIAL REALIZABLE     
                                                                                              VALUE AT ASSUMED         
                                   NUMBER OF      PERCENT OF                                  ANNUAL RATES OF          
                                   SECURITIES     TOTAL OPTIONS                               PRICE APPRECIATION       
                                   UNDERLYING     GRANTED TO     EXERCISE                     FOR OPTION TERM(2)       
                                   OPTIONS        EMPLOYEES IN   PRICE          EXPIRATION    -------------------------
     NAME                          GRANTED(#)(1)  FISCAL YEAR    ($/Sh)         DATE          5%($)           10%($)   
     ----                          -------------  -------------  --------       ----------    --------        ---------
     <S>                           <C>            <C>            <C>            <C>           <C>             <C>      
     J. Clifford Hudson               22,675          5.84%       $21.50        4/30/2008     $306,594        $776,969
     Kenneth L. Keymer                22,500          5.79%        18.08        1/27/2008      255,881         648,453
                                      15,698          4.04%        21.50        4/30/2008      212,256         537,899
     Pattye L. Moore                  10,989          2.83%        21.50        4/30/2008      148,585         376,543
     Ronald L. Matlock                10,047          2.59%        21.50        4/30/2008      135,848         344,265
     W. Scott McLain                   8,791          2.26%        21.50        4/30/2008      118,865         301,228
</TABLE>
- --------------------

     (1) Each option becomes exercisable with regard to one-third of the 
shares of common stock underlying the option on each of the three anniversary 
dates of the grant of the option.

     (2) The assumed annual rates of 5% and 10% would result in the Company's 
common stock price increasing during the 10-year term of the option from the 
$18.08 per share exercise price to $29.45 and $46.90, respectively, and from 
the $21.50 per share exercise price to $35.02 and $55.77, respectively.

     OPTION EXERCISES AND YEAR END VALUE TABLE.  The following table sets 
forth information regarding stock options exercised during the last fiscal 
year by the Company's chief executive officer and the other individuals named 
above and the value of unexercised stock options as of the end of the last 
fiscal year.

<TABLE>
<CAPTION>

                                                                                                             VALUE OF
                                                                                     NUMBER OF               UNEXERCISED
                                                                                     UNEXERCISED             IN-THE-MONEY
                                                                                     OPTIONS AS OF           OPTIONS AS OF
                                                                                     FISCAL YEAR END         FISCAL YEAR END
                                   SHARES ACQUIRED                                   EXERCISABLE/            EXERCISABLE/  
     NAME                          ON EXERCISE(#)                VALUE REALIZED($)   UNEXERCISABLE(#)        UNEXERCISABLE($)
     ----                          ---------------               ----------------    ----------------        ----------------
     <S>                           <C>                           <C>                 <C>                      <C>
     J. Clifford Hudson                   0                              0               204,536                $1,003,678
                                                                                          62,420                   141,234
     Kenneth L. Keymer                    0                              0                30,687                    58,207
                                                                                          69,574                    91,731
     Pattye L. Moore                      0                              0               100,175                   528,084
                                                                                          28,970                    64,630
     Ronald L. Matlock                    0                              0                28,234                    93,624
                                                                                          36,518                    95,071
     W. Scott McLain                      0                              0                21,471                    56,470
                                                                                          33,465                    56,809
</TABLE>

     COMPENSATION OF DIRECTORS.  During the last fiscal year, the Company 
compensated the non-management directors for their services in the amount of 
$10,000 per year, plus $2,000 for every meeting of the Board of Directors 
attended.  The Company also paid Mr. Werries $2,500 a month for his services 
as Chairman of the Board of Directors. The Company did not pay any additional 
fees to directors for serving on its standing committees.  The Company does 
not compensate directors who also serve as an officer or employee of the 
Company or its subsidiaries 

                                       6

<PAGE>

for their services as a director. The 1991 Sonic Corp. Directors' Stock 
Option Plan provides for the grant of 10-year, non-qualified stock options to 
purchase 22,500 shares of common stock of the Company to each non-management 
director of the Company upon the individual's initial election as a director. 
The exercise price of the stock options equals the market value of the 
common stock at the date of the grant, and the stock options become 
exercisable with regard to one-third of the shares of common stock underlying 
the option on each of the first three anniversary dates of the grant of the 
stock option. Pursuant to that plan, the Company previously granted options 
to purchase 22,500 shares of common stock of the Company at $6.6667 per share 
to Messrs. Lieberman, Richardson and Werries; options to purchase 22,500 
shares of common stock at $9.2222 per share to Robert M. Rosenberg; and 
options to purchase 22,500 shares of common stock at $11.50 per share to 
Messrs. Clark and Rainbolt.

     TERMINATION AND CHANGE IN CONTROL ARRANGEMENTS.  The Company has 
employment contracts with J. Clifford Hudson, its President and Chief 
Executive Officer, and the other members of its senior management. Mr. 
Hudson's contract, which expires in August of 1999 (and which automatically 
extends each year for one additional year to maintain successive terms of two 
years unless specifically terminated or not renewed by the Company), provides 
that, if the Company terminates Mr. Hudson's employment other than for cause 
or fails to renew his contract, he will receive his base compensation for a 
24-month period after termination (at an annualized base of $325,000 as of 
August 31, 1998). Mr. Hudson's contract defines "cause" as (1) the willful 
and intentional failure substantially to perform his duties (other than 
because of physical or mental incapacity), (2) the commission of an illegal 
act in connection with his employment, or (3) the commission of any act which 
falls outside the ordinary course of his responsibilities and which exposes 
the Company to a significant level of undue liability. A determination of 
"cause" requires the affirmative vote of at least two-thirds of all members 
of the Board of Directors. The contracts for Messrs. Keymer, Matlock and 
McLain, for Ms. Moore, and for the other officers of the Company expire in 
August of 1999 (and automatically renew for successive one-year terms unless 
specifically terminated or not renewed by the Company).  Those contracts 
provide for six to 12 months' salary upon termination of employment other 
than for cause.  The contracts for all of the foregoing officers contain the 
same definition of "cause" as Mr. Hudson's contract.

     The contracts for all of the foregoing officers also provide that, upon 
a change in control of the Company, if the Company terminates the officer's 
employment other than for cause or violates any term of the contract, the 
Company must pay the officer a lump sum equal to a specified multiple of the 
officer's then current salary, not to exceed the maximum payable without a 
loss of the deduction under Section 280(g) of the Internal Revenue Code.  The 
specified multiple equals two times the amount of their annual salary for all 
of the officers of the Company, except for Mr. Hudson (who would receive 
three times his annual salary).  The same lump sum provision applies if the 
officer should resign for "good reason," which includes (without limitation) 
the occurrence without the officer's consent after a change in control of the 
Company of (1) the assignment to the officer of duties inconsistent with the 
officer's office with the Company, (2) a change in the officer's title or 
office with the Company, or (3) a reduction in the officer's salary.  The 
officers' contracts generally define a "change in control" to include any 
consolidation or merger of the Company in which the Company does not continue 
or survive or pursuant to which the shares of capital stock of the Company 
convert into cash, securities or other property; any sale, lease, exchange or 
transfer of all or substantially all of the assets of the Company; the 
acquisition of 50% or more of the outstanding capital stock of the Company by 
any person; or, a change in the make-up of the Board of Directors of the 
Company during any period of two consecutive years, pursuant to which 
individuals who at the beginning of the period made up the entire Board of 
Directors of the Company cease for any reason to constitute a majority of the 
Board of Directors, unless at least two-thirds of the directors then and 
still in office approved the nomination of the new directors.

     Other than the foregoing agreements, the Company has no compensatory 
plan or arrangement with respect to its executive officers which would result 
from the resignation, retirement or termination of any executive officer's 
employment with the Company, from a change in control of the Company, or from 
a change in an executive officer's responsibilities following a change in 
control of the Company.

     COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION.  Leonard 
Lieberman, Frank E. Richardson, and J. Clifford Hudson served on the 
Company's Compensation Committee during the last fiscal year.  Other than 

                                       7
<PAGE>

Mr. Hudson, who serves as the Company's President and Chief Executive 
Officer, no person who served on the Compensation Committee during the last 
fiscal year had any relationship with the Company requiring disclosure under 
this heading.

                           REPORT ON EXECUTIVE COMPENSATION

     The following joint report of the Compensation Committee and Stock Plan 
Committee of the Board of Directors describes the committees' compensation 
policies with regard to the Company's executive officers for the last fiscal 
year, including the specific relationship of corporate performance to 
executive compensation.  The report also discusses the committees' bases for 
the chief executive officer's compensation for the last fiscal year, 
including the factors and criteria upon which the committees based that 
compensation.  As described above under "Committees and Meetings of the Board 
of Directors," the Compensation Committee's functions include reviewing and 
making recommendations to the Board of Directors concerning the base salary, 
annual incentive bonus awards, and other compensation awards to the Company's 
chief executive officer and other executive officers of the Company.  The 
Stock Plan Committee's functions include the administration of the Company's 
employee stock option plan and the granting of stock options under that plan 
and the administration of the Company's employee stock incentive plan and the 
granting of stock under that plan.

     The following report shall not constitute a document deemed incorporated 
by reference by any general statement incorporating this proxy statement by 
reference into any filing under the Securities Act of 1933 or under the 
Securities Exchange Act of 1934, except to the extent the Company 
specifically incorporates the information by reference, and the report shall 
not constitute information otherwise deemed filed under either of those acts.

INDEPENDENT COMPENSATION CONSULTANT REPORT

     The Company for several years has retained an independent compensation 
consultant to advise the Company on the structure and competitiveness of the 
Company's executive compensation program and to recommend programs 
appropriate for the Company in the areas of salary, annual incentive 
programs, long-term incentives, and benefits and employment contract 
provisions.  In conducting its initial review, the consultant interviewed the 
senior executive officers of the Company, as well as the members of the 
Compensation Committee; identified a peer group of 11 comparable multi-outlet 
restaurant companies; and analyzed the cash compensation, stock option and 
long-term incentive programs, and employment contract provisions available in 
that peer group according to available proxy statement information, as well 
as compensation data from other published surveys.  Since the initial review, 
the Company has obtained annual updates of the review and report to the 
Company.  The results of the original and updated reviews showed and continue 
to show that the total compensation of the Company's executive officers falls 
below the average level of total compensation of the peer group executive 
officers.  The Company and the Compensation Committee intend to continue to 
work with the consultant to develop appropriate changes to the Company's 
executive compensation program.

COMPENSATION POLICY AND OVERALL OBJECTIVES

     In order to attract, retain and motivate superior executive talent, the 
Compensation Committee seeks to maintain compensation programs competitive 
with those provided by leading companies in the multi-unit restaurant 
business with similar size and business focus as the Company.  The committee 
has adopted a compensation strategy to provide (1) base salaries which are 
competitive but not above industry averages, (2) average or above-average 
total annual cash opportunities, through incentives based on operating 
results, (3) above-average long-term incentives based on stock appreciation, 
and (4) other benefits for executives which are competitive but not above 
industry norms.

     The primary components of the Company's executive compensation package 
consist of base salary, annual incentive bonus awards, stock option awards, 
and restricted stock awards.

                                       8

<PAGE>

     In connection with making decisions with respect to executive 
compensation, the Compensation Committee will take into account as one of the 
factors which it considers, the provisions of Section 162(m) of the Internal 
Revenue Code which limits the deductibility by the Company of certain 
categories of compensation in excess of $1,000,000 paid to certain executive 
officers.  It may, however, determine to authorize compensation arrangements 
that exceed the $1,000,000 deductibility cap imposed by Section 162(m).  No 
executive officer's total compensation for the fiscal year ending August 31, 
1998 exceeded the $1,000,000 deductibility cap.

DISCUSSION OF COMPENSATION COMPONENTS

     BASE SALARY.  In reviewing each executive officer's base salary, the 
Compensation Committee takes into consideration the executive officer's 
responsibilities and performance, salaries for comparable positions at other 
companies, and fairness issues relating to pay for other Company executives.  
In making salary recommendations or decisions, the committee exercises its 
discretion and judgment based on those factors.  The committee does not apply 
any specific formula to determine the weight of each factor.

     INCENTIVE BONUS AWARDS.  The Company has adopted an incentive bonus 
plan, which covers all of the Company's executive officers, as well as other 
mid-level management personnel.  Under the plan, the Compensation Committee 
measures the performance of the Company against an annual business plan 
prepared by management and reviewed and approved by the Board of Directors.  
Achievement of the net income target set forth in the annual business plan 
may result in the payment of incentive payments equal to a percentage of the 
base salary of the covered officer (50% for Messrs. Hudson and Keymer, and 
35% for Messrs. Matlock and McLain and Ms. Moore).  Under the plan, the 
committee may award up to 50% of the incentive payments if the Company 
achieves 85% of the annual business plan and may award up to 100% of the 
incentive payments as the percentage of net income achieved increases from 
85% to 100%.  The plan also allows the committee to increase the incentive 
payments ratably to the extent the Company exceeds the net income target.  
The committee has the discretion whether and in what amounts to award any 
incentive bonuses.

     STOCK OPTION GRANTS.  The 1991 Sonic Corp. Stock Option Plan is a 
stock-based incentive compensation plan under which employees selected by the 
Stock Plan Committee may receive awards in the form of stock options.  Under 
that plan, selected employees may receive an annual grant of stock options to 
purchase a number of shares of common stock computed by (1) dividing the 
employee's annual salary and bonus by the current market price of the common 
stock and (2) multiplying that amount by a factor ranging from zero to two. 
The Stock Plan Committee grants special stock option awards to new members of 
management whose position with the Company qualifies them for participation 
in the plan and for existing members of management who may have received a 
promotion.  In selecting the multiplier for an award of stock options to a 
specific individual, the committee takes into account the existing number of 
options and shares of common stock already owned by the individual and, 
therefore, may use a lower multiplier for an individual already owning a 
substantial number of options or shares of common stock. 

     STOCK INCENTIVE PLAN. In November of 1995, the Stock Plan Committee 
adopted and the Board of Directors approved the Stock Incentive Plan.  Under 
that plan, the Company may issue up to 180,000 shares of common stock of the 
Company to key employees selected for participation in the plan by the Stock 
Plan Committee, which administers the plan.  Participants in the Stock 
Incentive Plan receive awards of shares of restricted common stock (the 
"Restricted Stock"), subject to not vesting if the Company fails to achieve 
certain annual performance criteria. As the Company achieves the performance 
criteria, the portion of the award tied to the criteria will vest.  Until the 
Restricted Stock vests, an escrow agent will hold the Restricted Stock.  
However, the participant will have the right to vote the Restricted Stock and 
receive any dividends on the stock.  If the Company does not achieve the 
performance criteria, the portion of the award tied to that criteria will not 
vest and the right to receive dividends and to vote that portion of the 
Restricted Stock will terminate.  Upon vesting, all restrictions on the 
vested portion will terminate and the participant will have the right to 
receive certificates representing the shares of vested Restricted Stock.

                                       9

<PAGE>

COMPENSATION OF CHIEF EXECUTIVE OFFICER

     Mr. Hudson has served as President and Chief Executive Officer of the 
Company since April 11, 1995.   On January 27, 1998, the Compensation 
Committee met and set Mr. Hudson's annual compensation at $325,000.  The 
committee considered the results of the most recent update of the Company's 
independent compensation consultant regarding the range of compensation for 
the chief executive officers of the Company's competitive peer group and set 
Mr. Hudson's level of compensation below the average of that group.  On April 
30, 1998, the Stock Plan Committee granted Mr. Hudson options to purchase 
22,675 shares of common stock, consistent with the standard formula described 
above.  Effective October 21, 1998, the Compensation Committee approved the 
award of 101% of Mr. Hudson's potential incentive bonus for the fiscal year 
ended August 31, 1998, pursuant to the terms of the Company's incentive bonus 
plan, which percentage is consistent with the percentages approved for the 
other executive officers of the Company, after taking into account the 
performance of the Company for that year.

          Respectfully Submitted,

          The Compensation Committee         The Stock Plan Committee

          /s/ Leonard Lieberman, Chairman    /s/ Leonard Lieberman, Chairman
          /s/ J. Clifford Hudson             /s/ Frank E. Richardson
          /s/ Frank E. Richardson            /s/ E. Dean Werries

PERFORMANCE GRAPH

     The following graph compares the cumulative total return on the 
Company's common stock with the cumulative total returns on two published 
indices - the Center for Research in Securities Prices ("CRSP") Total Return 
Index for The Nasdaq Stock Market (U.S. Companies) ("Nasdaq U.S. Stocks") and 
the CRSP Index for Nasdaq Retail Trade Stocks ("Nasdaq Retail Stocks"), since 
the Company became public in February of 1991.  The graph assumes a $100 
investment on February 28, 1991, in the Company's common stock and in the 
stocks comprising the two identified indices.  "Cumulative total return" 
means the appreciation in stock price, plus dividends paid, assuming the 
reinvestment of all dividends.

     The following graph shall not constitute a document deemed incorporated 
by reference by any general statement incorporating this proxy statement by 
reference into any filing under the Securities Act of 1933 or under the 
Securities Exchange Act of 1934, except to the extent the Company 
specifically incorporates the information by reference, and the graph shall 
not constitute information otherwise deemed filed under either of those acts.
                                       
                                    [GRAPH]

<TABLE>
<CAPTION>
                     02/28/91  08/30/91  08/31/92  08/31/93  08/31/94  08/31/95  08/30/96  08/29/97  08/31/98
<S>                  <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>     
Sonic Corp.           100.000   183.000   176.000   210.000   152.000   246.000   282.000   265.500   286.875
NASDAQ Stocks (U.S.)  100.000   117.254   127.164   167.754   174.615   235.158   265.178   369.968   351.491
NASDAQ Retail Stocks  100.000   129.270   125.336   147.705   147.095   161.716   187.926   211.995   183.888
</TABLE>

                                       10

<PAGE>

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     CERTAIN BENEFICIAL OWNERS.  The following table shows the total number 
and percentage of the outstanding shares of the Company's voting common stock 
beneficially owned as of November 30, 1998, with respect to each person 
(including any "group" as used in Section 13(d)(3) of the Securities Exchange 
Act of 1934, as amended) the Company knows to have beneficial ownership of 
more than 5% of the Company's common stock.  The Company computed the 
percentage ownership amounts in accordance with the provisions of Rule 
13d-3(d), which includes as beneficially owned all shares of common stock 
which the person or group has the right to acquire within the next 60 days.  
Unless indicated otherwise, each stockholder holds sole voting and investment 
power with regard to the shares of common stock.  The Company has obtained 
the information set forth below from the Schedule 13G's filed by the 
indicated persons with the Company.

<TABLE>
<CAPTION>
                                                  NUMBER
     BENEFICIAL OWNER                             OF SHARES      PERCENT
     ----------------                             ---------      -------
     <S>                                          <C>            <C>
     FMR Corp.(1)                                 1,696,500      13.24%
     82 Devonshire Street
     Boston, Massachusetts 02109

     Massachusetts Financial Services Company(2)    825,485        6.4%
     500 Boylston Street
     Boston, Massachusetts 02116

     T. Rowe Price Associates, Inc.(3)              702,500        5.4%
     100 E. Pratt Street
     Baltimore, Maryland 21202
</TABLE>

     (1) Fidelity Management & Research Company ("Fidelity), a wholly-owned 
subsidiary of FMR Corp. and a registered investment adviser, beneficially 
owns 1,290,000 shares (or 10.07% of the Company's outstanding common stock) 
as a result of its role as an investment adviser to Fidelity Low-Priced Stock 
Fund (the "Fund").  The Fund has sole voting power with regard to those 
1,290,000 shares of common stock. Fidelity Management Trust Company 
("Fidelity Management"), another wholly-owned subsidiary of FMR Corp. and a 
bank, beneficially owns and has sole voting power with regard to the 
remaining 406,500 shares (or 3.17% of the Company's outstanding common stock) 
as a result of its role as an investment manager for certain institutional 
accounts. Fidelity, the Fund, and Fidelity Management have the same address 
as FMR Corp.

     (2) Of the amount shown, the reporting person has sole voting power for 
817,185 shares of common stock.

     (3) T. Rowe Price Associates, Inc. ("Price Associates") beneficially 
owns 702,500 shares (or 5.4% of the Company's outstanding common stock) as a 
result of its role as an investment adviser to T. Rowe Price New Horizons 
Fund, Inc. ("Price Fund").  Price Fund has sole voting power with regard to 
those 702,500 shares of common stock.  For purposes of the reporting 
requirements of the Securities Exchange Act of 1934, Price Associates is 
deemed to be a beneficial owner of such securities; however, Price Associates 
expressly disclaims that it is the beneficial owner of such securities.  
Price Fund has the same address as Price Associates.

                                       11

<PAGE>

     MANAGEMENT.  The following table sets forth information obtained from 
the directors and executive officers of the Company as to their beneficial 
ownership of the Company's voting common stock as of November 30, 1998.  The 
Company computed the percentage ownership amounts in accordance with the 
provisions of Rule 13d-3(d), which rule includes as beneficially owned all 
shares of common stock which the person or group has the right to acquire 
pursuant to stock options exercisable within the next 60 days ("Currently 
Exercisable Options"). Unless indicated otherwise, each stockholder holds 
sole voting and investment power with regard to the shares of common stock.

<TABLE>
<CAPTION>
                                       NUMBER OF      NUMBER OF
     BENEFICIAL OWNER                   SHARES         OPTIONS      PERCENT(1)
     ----------------                  ---------      ---------     ----------
     <S>                               <C>            <C>           <C>
     J. Clifford Hudson(2)              412,394        204,536        3.22%
     Kenneth L. Keymer(3)                 9,750         38,187             (4)
     Pattye L. Moore(5)                     720        100,175             (4)
     Ronald L. Matlock(6)                 6,590         28,234             (4)
     W. Scott McLain(7)                     132         21,471              
     Dennis H. Clark(8)                 323,637         22,500        1.82%
     Leonard Lieberman                      553         22,500             (4)
     H. E. Rainbolt                      22,500         22,500             (4)
     Frank E. Richardson                478,084         22,500        2.64%
     Robert M. Rosenberg                 31,500         22,500             (4)
     E. Dean Werries                     27,450          3,000             (4)
     Directors and executive officers
       as a group (22 persons)(9)     1,315,583        707,860       10.30%
</TABLE>
- -----------------------

     (1) Pursuant to Rule 13(d)(3), the Company includes the shares of common 
stock underlying the Currently Exercisable Options as outstanding for the 
purposes of computing the percentage ownership of the person or group holding 
those options but not for the purposes of computing the percentage ownership 
of any other person.

     (2) The amount shown includes (a) 199,154 shares of common stock held by 
Mr. Hudson in trust for himself, (b) 196,800 shares of common stock held by 
Mr. Hudson's wife in trust for herself (of which Mr. Hudson disclaims 
beneficial ownership), and (c) 16,440 shares of common stock held by Mr. 
Hudson in trust for his two minor children (of which Mr. Hudson disclaims 
beneficial ownership).

     (3) The amount shown includes 7,500 shares of restricted common stock 
subject to not vesting if the Company fails to achieve either $256,711,000 in 
revenues or $1.47 in earnings per share during the fiscal year ending August 
31, 1999.

     (4) The amount represents less than 1% of the Company's outstanding 
shares of common stock.

     (5) The amount shown includes 495 shares of common stock held for Ms. 
Moore in the Company's 401(k) plan.

     (6) The amount shown includes (a) 590 shares of common stock held for 
Mr. Matlock in the Company's 401(k) plan and (b) 6,000 shares of restricted 
common stock subject to not vesting if the Company fails to achieve either 
$256,711,000 in revenues or $1.47 in earnings per share during the fiscal 
year ending August 31, 1999.

     (7) All of such shares are held for Mr. McLain in the Company's 401(k) 
plan.

     (8) The amount shown includes 67,515 shares of common stock owned by Mr. 
Clark's wife.

                                       12

<PAGE>

     (9) The amount includes (a) 1,217 shares of common stock held for 
certain executive officers in the Company's 401(k) plan and (b) 2,123 shares 
of common stock held for certain executive officers in the Company's employee 
stock purchase plan.

     CHANGES IN CONTROL.  The Company knows of no arrangements (including the 
pledge by any person of securities of the Company), the operation of which 
may result at a subsequent date in a change in control of the Company.

CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     The Company leases two parcels of real estate, upon which it operates 
two Company-owned restaurants, from Plains Realty Corp. ("Plains"), a 
corporation owned in part by J. Clifford Hudson, President, Chief Executive 
Officer, and a director of the Company, and Dennis H. Clark, a director of 
the Company. The Company is leasing both parcels pursuant to 15-year leases 
entered into in 1988 and 1989.  One of the leases expires in June of 2004 and 
the other in June of 2005.  During the last fiscal year, the Company paid 
Plains a total of $86,271 in rent pursuant to those two leases.  The Company 
believes that the terms and conditions of the leases are no less favorable 
than those it could have obtained from third parties in arm's length 
transactions.

     In March of 1994, the Company entered into an agreement with Dennis H. 
Clark, a director of the Company and then President of Sonic Restaurants, 
Inc., relating to his leaving the Company's employment and returning to his 
previous career as a Sonic franchisee.  Under his employment agreement, Mr. 
Clark had the right to receive an amount equal to 12 months' salary and to 
purchase six Sonic drive-in restaurants in Monroe, Louisiana.  In exchange 
for Mr. Clark's foregoing those rights, the Company sold its interest in two 
Sonic drive-in restaurants to Mr. Clark and provided him with the financing 
necessary to purchase the interests pursuant to two promissory notes, having 
terms of 10 and 15 years, each at 7% interest, and secured by Mr. Clark's 
interest in the restaurants.  Pursuant to the agreement, the Company also 
issued an area development agreement to Encore Restaurants, Inc. ("Encore") 
for the city of Plano, Texas, and a portion of the southwest corner of Collin 
County, Texas (the "Development Area"), calling for the development of seven 
restaurants over five years and the waiver of the initial franchise fee for 
three of those restaurants.  Mr. Clark is the president and a principal 
stockholder of Encore. The Company also committed to assist Encore with 
obtaining financing for up to six Sonic drive-in restaurants upon terms 
comparable to those which the Company could obtain.  Pursuant to this 
agreement, the Company has entered into asset repurchase agreements with the 
lender relating to approximately $4.2 million of financing for the 
development of the six Sonic drive-in restaurants.  Those agreements 
obligate the Company to purchase the collateral securing the financing at 
their fair market value in the event of a default under the terms of the 
financing documents.  The collateral consists of 105,024 shares of common 
stock of the Company and the real estate and operating assets of the Sonic 
drive-in restaurants.  As of August 31, 1998, the outstanding principal 
balance of the financing equaled approximately $3.2 million.  The 
outstanding principal balance of the secured loans made to Mr. Clark by the 
Company as of August 31, 1998 equaled approximately $598,000. 

     In January of 1998, the Company and Encore amended the area development 
agreement for the city of Plano and Collin County, Texas to allow the Company 
the right to develop up to five Company-owned restaurants within certain 
portions of the Development Area for a period of three years.  In exchange 
for such waiver by Encore of its exclusive development rights in the 
Development Area, the Company agreed to extend the term of Encore's 
development rights in the Development Area for an additional year through 
October of 2002, and arrange financing for Encore's development of five 
additional restaurants.  In addition, the Company agreed to enter into sale 
and leaseback transactions for each of the five additional restaurants to be 
developed by the Company on terms generally available from independent third 
parties with payment of up to 3.5% of annual gross sales to Encore from the 
operations of the Company-owned restaurants developed in the Development Area 
as additional percentage rent.   The terms of the January 1998 amendment 
transaction with Encore are consistent with the terms of a simultaneous 
agreement entered into with a non-affiliated franchise restaurant developer 
for similar development rights by the Company.

                                       13

<PAGE>

     H. E. Rainbolt, a director of the Company, is Chairman of the Board and 
a principal stockholder of BancFirst Corp., the holding company of BancFirst 
of Oklahoma City ("BancFirst").  BancFirst is a participant in the Company's 
$60 million revolving line of credit.  During the last fiscal year, the 
largest amount outstanding under that line of credit was approximately $43.6 
million, in which BancFirst participated in approximately $5.4 million.

SECTION 16 COMPLIANCE

     Based upon a review of the original and amended Forms 3 and 4 furnished 
to the Company during its last fiscal year and the original and amended Forms 
5 furnished to the Company with regard to its last fiscal year, the Company 
does not know of any person who failed to file on a timely basis any reports 
required by Section 16(a) of the Securities Exchange Act of 1934, as amended.

                   AMENDMENT OF 1991 SONIC CORP. STOCK OPTION PLAN

GENERAL

     ADOPTION OF AMENDMENT.  On November 17, 1998, the Stock Plan Committee 
adopted and the Board of Directors approved an amendment to the 1991 Sonic 
Corp. Stock Option Plan (the "Stock Option Plan") to increase the number of 
shares of common stock reserved for issuance pursuant to the Stock Option 
Plan by 935,000 shares of common stock to a total of 3,740,000 shares of 
common stock of the Company, subject to the approval of the Company's 
stockholders at its next annual meeting of stockholders.  When it originally 
adopted the Stock Option Plan, the Company reserved 1,208,838 shares of 
common stock for issuance pursuant to stock options granted under the plan 
and increased that amount by an amendment in August of 1993 to 1,867,500 
shares of common stock, by an amendment in November of 1995 to 2,010,000 
shares of common stock, and by an amendment in January of 1997 to 2,805,000 
shares of common stock.  As of November 30, 1998, the Company had 1,568,977 
options outstanding and 264,160 remaining options available for issuance 
pursuant to the Stock Option Plan.  As of November 30, 1998, 971,863 options 
granted by the Company pursuant to the Stock Option Plan had been exercised.

     PURPOSE OF AMENDMENT.  The stockholders of the Company approved the 
Stock Option Plan in 1991 as a key element of the Company's executive 
compensation program because stock-based incentive compensation ties 
executive compensation directly to the performance of the Company's common 
stock.  The Stock Option Plan enables the Company to attract and retain the 
services of its eligible employees and to provide them with increased 
motivation and incentive to exert their best efforts on behalf of the Company 
by increasing their personal stake in the Company.  In order that the plan 
may continue to serve its intended purposes, the proposed amendment would 
increase the number of shares of common stock available for issuance under 
the Stock Option Plan.  TOWERS PERRIN, THE COMPANY'S INDEPENDENT COMPENSATION 
CONSULTANT, HAS REVIEWED THE PROPOSED INCREASE AND HAS CONFIRMED THAT THE 
INCREASE WOULD PLACE THE TOTAL NUMBER OF SHARES OF COMMON STOCK AVAILABLE FOR 
ISSUANCE PURSUANT TO THE PLAN BELOW THE MEDIAN AMOUNT SIMILARLY RESERVED BY 
THE COMPANY'S PEER GROUP OF COMPANIES, WHICH IS APPROXIMATELY 17.7%.  UNDER 
THE COMPANY'S PLAN, IF AMENDED, THE TOTAL NUMBER OF SHARES AVAILABLE FOR 
ISSUANCE PURSUANT TO THE PLAN AND THE STOCK INCENTIVE PLAN WILL EQUAL 
APPROXIMATELY 15.6%.  Because the Board of Directors views the continued 
operation of the Plan to be in the best interests of the Company, the Board 
of Directors is requesting that the stockholders approve and ratify the 
amendment of the Stock Option Plan.

AMENDMENT

     The text of the amendment to the 1991 Sonic Corp. Stock Option Plan as 
approved by the Stock Plan Committee and the Board of Directors on November 
17, 1998, is as follows:

          6.   STOCK SUBJECT TO THE PLAN.  Subject to the adjustment as
     provided in Section 13 hereof, Options may be issued pursuant to the
     Plan with respect to a number of Shares that, in the aggregate, does
     not exceed 3,740,000 Shares.

                                       14

<PAGE>

SUMMARY OF THE PLAN

     ADMINISTRATION.  A committee consisting of not less than three directors 
of the Company appointed by the Board of Directors administers the plan.  In 
that regard, the Board of Directors has appointed the Stock Plan Committee to 
administer the plan.  The committee has sole and final authority to interpret 
the provisions of the plan and the terms of any option issued under it and to 
promulgate and interpret the rules and regulations relating to the plan and 
options which it deems necessary or desirable.  Members of the committee do 
not receive any additional compensation for their services in connection with 
their administration of the Stock Option Plan.

     ELIGIBILITY AND PARTICIPATION.  The plan provides for the granting of 
options to qualified employees of the Company.  Key employees (as determined 
by the Stock Plan Committee), who do not own 10% or more of the outstanding 
shares of common stock of the Company, may receive stock options under the 
plan. Currently, 55 employees hold stock options under the plan.

     TERMS AND CONDITIONS OF OPTIONS.  An option certificate, in the form 
adopted by the committee, evidences each option granted under the Stock 
Option Plan and sets forth the terms and conditions governing the option, 
including the number of shares of common stock to which it relates, the price 
at which the holder may purchase the underlying shares of common stock, when 
the holder may exercise the option, and when the option expires.

          NUMBER OF SHARES.  The Stock Plan Committee determines the number   
     of shares of common stock covered by each stock option granted under     
     the plan.

          EXERCISE OF THE OPTIONS.  The holder may exercise an option by
     the delivery to the Company of a written notice signed by the holder,
     which specifies the number of shares of common stock as to which the
     holder is exercising the option and the date of the proposed exercise. 
     The holder may pay for the shares of common stock owned by the holder
     and valued at their fair market value on the date of exercise, or in a
     combination of cash and shares of common stock.

          RIGHTS AS A STOCKHOLDER.  The holder of an option under the Stock
     Option Plan will not have any rights with respect to the shares of
     common stock underlying the option until exercised in the manner
     provided by the plan and the Company actually issues the shares of
     common stock to the holder.  Accordingly, the Company will not make
     any adjustment for dividends or other rights for which the record date
     precedes the date of issuance of shares of common stock under the
     option.  However, the Company will adjust the number of shares of
     common stock underlying an option under certain other circumstances. 
     See "Adjustments Upon Changes in Capitalization," below.

          EXERCISE PRICE OF THE OPTIONS.  The exercise price of the options
     will equal the fair market value of the Company's common stock on the
     date of the grant of the options.  The fair market value will equal
     the average of the closing bid and ask price for the Company's common
     stock, as reported on the Nasdaq National Market.  On November 30,
     1998, the average of the closing bid and ask price for the Company's
     common stock equaled $19.75 per share.

          VESTING AND TERMINATION OF THE OPTIONS.  Unless the Stock Plan
     Committee specifies otherwise, each option granted under the plan
     becomes exercisable with regard to one-third of the shares of common
     stock underlying the option on each of the three anniversary dates of
     the grant of the option.  The holder of the option may exercise it,
     once exercisable, at any time prior to its expiration, cancellation or
     termination.  The options terminate upon the termination of the
     employee's employment with the Company.  The holder may make partial
     exercises of the option as long as the partial exercise covers a whole
     number of shares of common stock having a purchase price of at least
     $1,000.  The options granted under the plan become fully exercisable
     upon an employee's retirement, disability, or death and upon a change
     in control of the Company.  

                                       15

<PAGE>
     A change in control of the Company takes place for the purposes of 
     the plan if any one or more of the following events occur:

               (1)  Any person acquires direct or indirect beneficial
          ownership of 25% or more of the combined voting power of the
          Company's then outstanding securities.

               (2)  Any person acquires direct or indirect beneficial
          ownership of 10% or more of the combined voting power of the
          Company's then outstanding securities and, during the two-year
          period beginning at that time, persons who at the beginning of 
          the period made up the Board of Directors cease for any reason
          to constitute at least a majority of the Board of Directors.

               (3)  The Company's stockholders approve an agreement to
          merge or consolidate the Company with another corporation
          and, during the period beginning six months before the
          approval and ending two years after the approval, persons
          who at the beginning of the period made up the Board of
          Directors cease for any reason to constitute at least a
          majority of the Board of Directors.

               (4)  During any two-year period, persons who at the
          date on which the period begins made up a majority of the
          Board of Directors cease for any reason to constitute at
          least a majority of the Board of Directors.

          EXPIRATION OF OPTIONS.  An option granted under the Stock Option
     Plan expires 10 years after the date of its grant, unless terminated
     earlier as described above.

          NON-TRANSFERABILITY OF THE OPTIONS.  The holder of an option
     granted under the Stock Option Plan does not have the right to
     transfer the option, except by will or the laws of descent and
     distribution.  Only the holder of an option may exercise the option
     during his or her lifetime.

          OTHER PROVISIONS.  Nothing in the Stock Option Plan confers upon
     any holder any right with regard to the continuation of his or her
     employment with the Company or interferes in any way with the right of
     the Company, at any time, to terminate the option holder's employment
     with the Company.

     ADJUSTMENTS UPON CHANGES IN CAPITALIZATION.  If the Company subdivides 
or combines its common stock, whether by reclassification, stock dividend, 
stock split, reverse stock split, or other similar transaction, the number of 
shares of common stock authorized under the plan, the number of shares of 
common stock then subject or relating to unexercised options granted under 
the plan, and the exercise price per share will adjust proportionately.  In 
the event of any capital reorganization or reclassification of the Company's 
common stock other than as described above, the Stock Plan Committee may make 
an appropriate adjustment in the number and class of shares of capital stock 
authorized under the plan and the number of shares of common stock then 
subject or relating to unexercised options granted under the plan.

     AMENDMENT OR TERMINATION.  The Stock Plan Committee, at any time and 
from time to time, may suspend, discontinue, modify or amend the plan in any 
respect. However, the Stock Plan Committee may not suspend, discontinue, 
modify or amend the plan to affect adversely the rights of an option holder 
with regard to any grants previously made without the option holder's 
approval, and the Stock Plan Committee may not amend the provisions relating 
to eligibility, number or exercise price of the options, duration of the 
options, or conditions relating to the exercise of the options more than once 
every six months, other than to comply with changes in federal tax laws.  No 
amendment or modification which (1) materially increases the benefits 
accruing to the option holders, (2) increases the number of shares of common 
stock authorized by the plan (except as set forth under "Adjustments 

                                       16

<PAGE>

Upon Changes in Capitalization," above), or (3) modifies the requirements as 
to eligibility for participation under the plan will become effective without 
stockholder approval.  The plan will continue for 10 years after the original 
date of its adoption.

     FEDERAL TAX ASPECTS.  The following material provides only a brief 
summary of the federal income tax aspects of the Stock Option Plan based on 
the tax laws in effect as of the mailing date of this proxy statement.  The 
summary is not exhaustive and does not describe a number of special tax 
rules, including the alternative minimum tax and various elections which may 
apply under certain circumstances.

          TAXABLE INCOME UPON GRANT.  An employee will not recognize
     federal taxable income upon the grant of an option under the Stock
     Option Plan.

          INCENTIVE STOCK OPTIONS.  A holder who exercises an incentive
     stock option will not recognize any taxable income at the time of
     exercise, nor will the Company receive a deduction.  However, the
     difference between the exercise price and the fair market value of the
     shares of common stock on the exercise date constitutes a tax
     preference item for purposes of determining a participant's
     alternative minimum tax.  A disposition of the purchased shares after
     the expiration of the required holding periods will subject the holder
     to taxation at long-term capital gains rates in the year of
     disposition in an amount determined under the Internal Revenue Code
     and the Company will not have the right to a deduction for federal
     income tax purposes.  A disposition of the purchased shares prior to
     the expiration of the applicable holding periods will subject the
     holder to taxation at ordinary income rates in the year of disposition
     in an amount determined under the Internal Revenue Code and the
     Company generally will have the right to a corresponding deduction.

          NON-QUALIFIED STOCK OPTIONS.  A holder who exercises a non-
     qualified stock option will recognize ordinary income in the year the
     holder exercises the option equal to the amount by which the fair
     market value of the purchased shares of common stock exceeds the
     option exercise price, and the Company generally will have the right
     to a corresponding deduction for federal income tax purposes.  If the
     holder pays the exercise price under a non-qualified stock option in
     the form of shares of common stock of the Company, the holder will not
     recognize any taxable income to the extent that the shares of common
     stock received upon the exercise of the option equal the number of
     shares of common stock delivered in payment of the option exercise
     price.  For federal income tax purposes, those newly acquired shares
     of common stock will have the same basis and holding period as the
     delivered shares of common stock.  The holder generally will have to
     report all additional shares of common stock received upon the
     exercise as ordinary income for the year of exercise in an amount
     equal to the fair market value of the additional shares of common
     stock as of the date of the exercise.  Those additional shares of
     common stock will have a tax basis equal to their fair market value
     and their holding period for tax purposes will begin on the date of
     their transfer to the holder.

          WITHHOLDING TAXES.  The Company will have the right to require
     the holder to remit to the Company in cash an amount sufficient to
     satisfy federal, state and local withholding requirements, if any,
     prior to the delivery of any certificate for shares of common stock
     acquired pursuant to the exercise of the options.  Notwithstanding the
     foregoing but subject to the approval of the Stock Plan Committee, a
     holder may tender to the Company a number of shares of common stock or
     the Company may withhold a number of shares of common stock, the fair
     market value of which will satisfy the federal, state, and local tax
     requirements.

ANTI-TAKEOVER EFFECT

     The provisions of the Stock Option Plan which make the options 
immediately exercisable upon a change in control of the Company may have an 
anti-takeover effect and may constitute a factor in delaying, deferring or 

                                       17

<PAGE>

preventing a tender offer or takeover attempt that a stockholder otherwise 
might consider in the stockholder's best interest, including attempts that 
might result in a premium over the market price for the shares of common 
stock held by the stockholder. Management of the Company believes, however, 
that the benefits of the plan as described under "Purpose of the Amendment," 
above, more than outweigh the anti-takeover effect, if any, of the plan.

REQUIRED VOTE

     The amendment to the Stock Option Plan requires approval by the 
affirmative vote of the holders of a majority of the Company's outstanding 
shares of common stock present in person or by proxy and voting at the 
meeting.  If the stockholders do not vote a sufficient number of shares of 
common stock in favor of the amendment, the amendment will not take effect.  
The Stock Plan Committee has not decided what action, if any, it may take if 
that happens.

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL AND 
RATIFICATION OF THE ADOPTION OF THE AMENDMENT TO THE STOCK OPTION PLAN.

              AMENDMENT OF 1991 SONIC CORP. DIRECTORS' STOCK OPTION PLAN

GENERAL

     ADOPTION OF AMENDMENT.  The Stock Plan Committee adopted and the Board 
of Directors approved an amendment to the 1991 Sonic Corp. Directors' Stock 
Option Plan (the "Directors' Stock Option Plan") to change the number of 
stock options to be granted to directors.  The Directors' Stock Option Plan 
currently provides for the grant of 10-year, non-qualified stock options to 
purchase 22,500 shares of common stock of the Company to each non-management 
director of the Company upon the individual's initial election as a director. 
The amendment would reduce the number of stock options granted to each 
non-management director of the Company upon the director's initial election 
from 22,500 to 15,000 shares of common stock of the Company, but would 
provide that annual grants of options to purchase an additional 2,000 shares 
of common stock would be made to each director beginning with the first year 
of the director's second three-year term and continuing annually for so long 
as the individual serves on the Board.  The amendment would also cause the 
annual grant of options to purchase 2,000 shares to be made effective as of 
the inception of the Directors' Stock Option Plan in 1991 so that  each 
director would receive options to purchase 2,000 shares for each year 
beginning with the later of 1994 or the first year of the director's second 
three-year term on the Board and continuing for each year of service by the 
director on the Board thereafter.  As a result, upon approval of the 
amendment, options to purchase an aggregate of 48,000 shares would be granted 
to directors entitled to receive annual grants of options for prior service 
on the Board.  The options to be issued  pursuant to the amendment for a 
director's prior service on the Board would be granted as of the date of the 
annual meeting of shareholders in 1999 for the purpose of determining the 
exercise price and vesting schedule of the options.  Future annual grants of 
options pursuant to the amendment would be made as of the date of each future 
annual meeting of shareholders.

     PURPOSE OF AMENDMENT.  The stockholders of the Company approved the 
Directors' Stock Option Plan in 1991 to attract and retain the services of 
members of the Board and to provide them with increased motivation and 
incentive to exert their best efforts on behalf of the Company by enlarging 
their personal stake in the Company.  In order that the Directors' Stock 
Option Plan may continue to serve its intended purpose and to provide 
increased motivation for a director to serve additional terms, the proposed 
amendment would reduce the number of options initially granted to a director, 
but would provide for additional options to be granted annually during a 
director's tenure of service on the Board beginning with the first year of 
the director's second three-year term on the Board.  Because the Board views 
the amendment of the Directors' Stock Option Plan to be in the best interests 
of the Company, the Board is requesting that the stockholders approve and 
ratify the amendment.

                                       18

<PAGE>

AMENDMENT

     The text of the amendment to the Directors' Stock Option Plan as 
approved by the Stock Option Committee and the Board of Directors, is as 
follows:

          7.   OPTIONS.  

          A. Each Participant shall be granted an Option to purchase 15,000
     Shares upon the Participant's initial election to the Board. 
     Effective January 20, 1999, each Participant will be granted an Option
     to purchase 2,000 shares for each year of service on the Board
     beginning with the later of 1994 or the first year of the
     Participant's second three-year term on the Board and continuing for
     each additional year of service by the Participant on the Board.  The
     Options shall be granted each year on the date of the annual meeting
     of shareholders of the Company (the "Date of Grant").  The price per
     share at which Shares may be purchased pursuant to any Option granted
     under the Plan shall be the Fair Market Value of a Share on the Date
     of Grant of the Option.

SUMMARY OF THE PLAN

     ADMINISTRATION.  A committee consisting of not less than three directors 
of the Company appointed by the Board of Directors administers the Directors' 
Stock Option Plan.  In that regard, the Board has appointed the Stock Plan 
Committee to administer the plan.  The committee has sole and final authority 
to interpret the provisions of the Directors' Stock Option Plan and the terms 
of any option issued under it and to promulgate and interpret the rules and 
regulations relating to the Directors' Stock Option Plan and options which it 
deems necessary or desirable.  Members of the committee do not receive any 
additional compensation for their services in connection with their 
administration of the Directors' Stock Option Plan.

     ELIGIBILITY AND PARTICIPATION.  The Directors' Stock Option Plan 
currently provides for the granting of options to each non-management 
director of the Company upon their election to the Board.  Currently, six 
directors hold stock options under the Directors' Stock Option Plan.

     TERMS AND CONDITIONS OF OPTIONS.  An option certificate, in the form 
adopted by the committee, evidences each option granted under the Directors' 
Stock Option Plan and sets forth the terms and conditions governing the 
option, including the number of shares of common stock to which it relates, 
the price at which the holder may purchase the underlying shares of common 
stock, when the holder may exercise the option, and when the option expires.

          NUMBER OF SHARES.  The plan currently provides that each director
     is granted an option to purchase 22,500 shares of common stock upon
     the director's initial election to the Board.

          EXERCISE OF THE OPTIONS.  The holder may exercise an option by
     the delivery to the Company of a written notice signed by the holder,
     which specifies the number of shares of common stock as to which the
     holder is exercising the option and the date of the proposed exercise. 
     The holder may pay for the shares of common stock owned by the holder
     and valued at their fair market value on the date of exercise, or in a
     combination of cash and shares of common stock.

          RIGHTS AS A STOCKHOLDER.  The holder of an option under the
     Directors' Stock Option Plan will not have any rights with respect to
     the shares of common stock underlying the option until exercised in
     the manner provided by the plan and the Company actually issues the
     shares of common stock to the holder.  Accordingly, the Company will
     not make any adjustment for dividends or other rights for which the
     record date precedes the date of issuance of shares of common stock
     under the option.  However, the Company will adjust the number of
     shares of 

                                       19

<PAGE>

     common stock underlying an option under certain other circumstances.
     See "Adjustments Upon Changes in Capitalization," below.

          EXERCISE PRICE OF THE OPTIONS.  The exercise price of the options
     will equal the fair market value of the Company's common stock on the
     date of the grant of the options.  The fair market value will equal
     the average of the closing bid and ask price for the Company's common
     stock, as reported on the Nasdaq National Market.  On November 30,
     1998, the average of the closing bid and ask price for the Company's
     common stock equaled $19.75 per share.

          VESTING AND TERMINATION OF THE OPTIONS.  Unless the Stock Plan
     Committee specifies otherwise, each option granted under the plan
     becomes exercisable with regard to one-third of the shares of common
     stock underlying the option on each of the three anniversary dates of
     the grant of the option.  The holder of the option may exercise it,
     once exercisable, at any time prior to its expiration, cancellation or
     termination. The holder may make partial exercises of the option as
     long as the partial exercise covers a whole number of shares of common
     stock having a purchase price of at least $1,000. The options granted
     under the plan become fully exercisable upon a director's retirement
     from the Board, disability, or death and upon a change in control of
     the Company.  A change in control of the Company takes place for the
     purposes of the plan if any one or more of the following events occur:

               (1)  Any person acquires direct or indirect beneficial
          ownership of 25% or more of the combined voting power of the
          Company's then outstanding securities.

               (2)  Any person acquires direct or indirect beneficial
          ownership of 10% or more of the combined voting power of the
          Company's then outstanding securities and, during the two-year
          period beginning at that time, persons who at the beginning of 
          the period made up the Board of Directors cease for any reason 
          to constitute at least a majority of the Board of Directors.

               (3)  The Company's stockholders approve an agreement to
          merge or consolidate the Company with another corporation
          and, during the period beginning six months before the
          approval and ending two years after the approval, persons
          who at the beginning of the period made up the Board of
          Directors cease for any reason to constitute at least a
          majority of the Board of Directors.

               (4)  During any two-year period, persons who at the
          date on which the period begins made up a majority of the
          Board of Directors cease for any reason to constitute at
          least a majority of the Board of Directors.

          EXPIRATION OF OPTIONS.  An option granted under the Directors'
     Stock Option Plan expires 10 years after the date of its grant, unless
     terminated earlier as described above.

          NON-TRANSFERABILITY OF THE OPTIONS.  The holder of an option
     granted under the Directors' Stock Option Plan does not have the right
     to transfer the option, except by will or the laws of descent and
     distribution.  Only the holder of an option may exercise the option
     during his or her lifetime.

          ADJUSTMENTS UPON CHANGES IN CAPITALIZATION.  If the Company
     subdivides or combines its common stock, whether by reclassification,
     stock dividend, stock split, reverse stock split, or other similar
     transaction, the number of shares of common stock authorized under the
     plan, the number of shares of common stock then subject or relating to
     unexercised options granted under 

                                       20

<PAGE>

     the plan, and the exercise price per share will adjust proportionately.
     In the event of any capital reorganization or reclassification of the 
     Company's common stock other than as described above, the Stock Plan 
     Committee may make an appropriate adjustment in the number and class of
     shares of capital stock authorized under the plan and the number of shares
     of common stock then subject or relating to unexercised options granted 
     under the plan.

          AMENDMENT OR TERMINATION.  The Stock Plan Committee, at any time
     and from time to time, may suspend, discontinue, modify or amend the
     plan in any respect.  However, the Stock Plan Committee may not
     suspend, discontinue, modify or amend the plan to affect adversely the
     rights of an option holder with regard to any grants previously made
     without the option holder's approval.  No amendment or modification
     which (1) materially increases the benefits accruing to the option
     holders, (2) increases the number of shares of common stock authorized
     by the plan (except as set forth under "Adjustments Upon Changes in
     Capitalization," above), or (3) modifies the requirements as to
     eligibility for participation under the plan will become effective
     without stockholder approval.  The plan will continue for 10 years
     after the original date of its adoption.

     FEDERAL TAX ASPECTS.  The following material provides only a brief 
summary of the federal income tax aspects of the Directors' Stock Option Plan 
based on the tax laws in effect as of the mailing date of this proxy 
statement.  The summary is not exhaustive and does not describe a number of 
special tax rules, including the alternative minimum tax and various 
elections which may apply under certain circumstances.

          TAXABLE INCOME UPON GRANT.  A director will not recognize federal
     taxable income upon the grant of an option under the Directors' Stock
     Option Plan.

          NON-QUALIFIED STOCK OPTIONS.  The options granted under the
     Directors' Stock Option Plan are non-qualified stock options.  A
     holder who exercises a non-qualified stock option will recognize
     ordinary income in the year the holder exercises the option equal to
     the amount by which the fair market value of the purchased shares of
     common stock exceeds the option exercise price, and the Company
     generally will have the right to a corresponding deduction for federal
     income tax purposes.  If the holder pays the exercise price under a
     non-qualified stock option in the form of shares of common stock of
     the Company, the holder will not recognize any taxable income to the
     extent that the shares of common stock received upon the exercise of
     the option equal the number of shares of common stock delivered in
     payment of the option exercise price.  For federal income tax
     purposes, those newly acquired shares of common stock will have the
     same basis and holding period as the delivered shares of common stock. 
     The holder generally will have to report all additional shares of
     common stock received upon the exercise as ordinary income for the
     year of exercise in an amount equal to the fair market value of the
     additional shares of common stock as of the date of the exercise. 
     Those additional shares of common stock will have a tax basis equal to
     their fair market value and their holding period for tax purposes will
     begin on the date of their transfer to the holder.

          WITHHOLDING TAXES.  The Company will have the right to require
     the holder to remit to the Company in cash an amount sufficient to
     satisfy federal, state and local withholding requirements, if any,
     prior to the delivery of any certificate for shares of common stock
     acquired pursuant to the exercise of the options.  Notwithstanding the
     foregoing but subject to the approval of the Stock Plan Committee, a
     holder may tender to the Company a number of shares of common stock or
     the Company may withhold a number of shares of common stock, the fair
     market value of which will satisfy the federal, state, and local tax
     requirements.

ANTI-TAKEOVER EFFECT

     The provisions of the Directors' Stock Option Plan which make the 
options immediately exercisable upon a change in control of the Company may 
have an anti-takeover effect and may constitute a factor in delaying, 

                                       21

<PAGE>

deferring or preventing a tender offer or takeover attempt that a stockholder 
otherwise might consider in the stockholder's best interest, including 
attempts that might result in a premium over the market price for the shares 
of common stock held by the stockholder.  Management of the Company believes, 
however, that the benefits of the plan as described under "Purpose of the 
Amendment," above, more than outweigh the anti-takeover effect, if any, of 
the plan.

REQUIRED VOTE

     The amendment to the Directors' Stock Option Plan requires approval by 
the affirmative vote of the holders of a majority of the Company's 
outstanding shares of common stock present in person or by proxy and voting 
at the meeting. If the stockholders do not vote a sufficient number of shares 
of common stock in favor of the amendment, the amendment will not take 
effect.  The Stock Plan Committee has not decided what action, if any, it may 
take if that happens.

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL AND 
RATIFICATION OF THE ADOPTION OF THE AMENDMENT TO THE DIRECTORS' STOCK OPTION 
PLAN.

                          SELECTION OF INDEPENDENT AUDITORS

     The Board of Directors, based on the recommendation of the Audit 
Committee, has re-appointed the firm of Ernst & Young LLP, independent 
auditors, as the Company's auditors for the fiscal year ending August 31, 
1999, subject to the approval and ratification by the stockholders.  Ernst & 
Young LLP has served as the Company's auditors since 1984.  The Company 
expects one or more representatives of Ernst & Young LLP to attend the annual 
meeting in order to respond to any appropriate questions.

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL AND 
RATIFICATION OF THE RE-APPOINTMENT OF ERNST & YOUNG LLP.

                                    OTHER MATTERS

     The Board of Directors knows of no other matters which may come before 
the annual meeting.  If any other business properly comes before the meeting, 
the persons named in the proxy will vote with respect to that matter in 
accordance with their best judgment. 

                              ANNUAL REPORT ON FORM 10-K

     THE COMPANY WILL PROVIDE, WITHOUT CHARGE, TO EACH STOCKHOLDER SOLICITED 
TO VOTE AT THE ANNUAL MEETING, ON THE WRITTEN REQUEST OF THE STOCKHOLDER, A 
COPY OF THE COMPANY'S ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED AUGUST 
31, 1998, INCLUDING THE FINANCIAL STATEMENTS AND SCHEDULES, AS FILED WITH THE 
SECURITIES AND EXCHANGE COMMISSION.  EACH WRITTEN REQUEST MUST SET FORTH A 
GOOD FAITH REPRESENTATION THAT AS OF THE RECORD DATE, THE PERSON MAKING THE 
REQUEST WAS A BENEFICIAL OWNER OF THE COMPANY'S COMMON STOCK ENTITLED TO VOTE 
AT THE ANNUAL MEETING.  STOCKHOLDERS SHOULD DIRECT THE WRITTEN REQUEST TO THE 
COMPANY TO RONALD L. MATLOCK, SECRETARY, 101 PARK AVENUE, OKLAHOMA CITY, 
OKLAHOMA 73102.

                                       22

<PAGE>

                                        PROXY

                                FOR THE ANNUAL MEETING
                                OF THE STOCKHOLDERS OF

                                     SONIC CORP.

            THE BOARD OF DIRECTORS OF SONIC CORP. IS SOLICITING THIS PROXY

     The undersigned hereby appoints J. Clifford Hudson and Ronald L. 
Matlock, and each of them, the undersigned's proxy, with full power of 
substitution, to attend the annual meeting of the stockholders of Sonic Corp. 
(the "Company") on Wednesday, January 20, 1999, at 1:30 p.m., in the 20th 
Century Ballroom of the Westin Hotel, One North Broadway, Oklahoma City, 
Oklahoma, and at any adjournment of that meeting, and to vote the 
undersigned's shares of common stock as designated below.

(1)  ELECTION OF DIRECTORS

     / / FOR all nominees listed below            / / WITHHOLD AUTHORITY to vote
         (except as marked to the contrary            for all nominees listed 
         below)                                       below

     (INSTRUCTION: TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDIVIDUAL NOMINEE, 
     STRIKE THROUGH THE NOMINEE'S NAME BELOW.)

     Kenneth L. Keymer        H.E. "Gene" Rainbolt               E. Dean Werries

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE ELECTION OF ALL OF 
     THE ABOVE-NAMED NOMINEES.

(2)  Approval and Ratification of the Amendment to the 1991 Sonic Corp. Stock 
     Option Plan.

               / / FOR        / / AGAINST        / / ABSTAIN

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL AND 
     RATIFICATION OF THE AMENDMENT OF THE STOCK OPTION PLAN.

(3)  Approval and Ratification of the Amendment to the 1991 Sonic Corp. 
     Directors' Stock Option Plan.

               / / FOR        / / AGAINST        / / ABSTAIN

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL AND 
     RATIFICATION OF THE AMENDMENT OF THE DIRECTORS' STOCK OPTION PLAN.

(4)  Approval and Ratification of the Selection of Independent Auditors.

               / / FOR        / / AGAINST        / / ABSTAIN

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL AND 
     RATIFICATION OF THE SELECTION OF INDEPENDENT AUDITORS.

                                    (over)
<PAGE>

(5)  Any other matter properly coming before the meeting, upon which the persons
     named above will vote for or against, in their sole discretion, or upon
     which the persons named above will abstain from voting, in their sole
     discretion.

               / / To Grant Authority       / / To Withhold Authority

     THE PERSONS NAMED ABOVE WILL VOTE THE SHARES OF COMMON STOCK REPRESENTED 
BY THIS PROXY CARD IN ACCORDANCE WITH THE SPECIFICATIONS MADE IN ITEMS 1, 2, 
3 AND 4.  IF THE UNDERSIGNED MAKES NO SPECIFICATION, THE PERSONS NAMED ABOVE 
WILL VOTE THE SHARES IN FAVOR OF ITEMS 1, 2, 3 AND 4 AND WILL VOTE THE SHARES 
AS IF THE UNDERSIGNED HAD GRANTED THE AUTHORITY IN ITEM 5.

     Please sign exactly as your name appears below, date and return this 
proxy card promptly, using the self-addressed, prepaid envelope enclosed for 
your convenience.  Please correct your address before returning this proxy 
card. Persons signing in a fiduciary capacity should indicate that fact and 
give their full title.  If a corporation, please sign in the full corporate 
name by the president or other authorized officer.  If a partnership, please 
sign in the partnership name by an authorized person.  If joint tenants, both 
persons should sign.

                                    -------------------------------------------
                                    Name of Stockholder (Please Print)

                                    -------------------------------------------
                                    New Address (Street, City, State, Zip Code)

                                    -------------------------------------------
                                    Signature and Title

                                    -------------------------------------------
                                    Signature and Title

                                    -------------------------------------------
                                    Date



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