Sonic Releases Preliminary Sales Results

Sales Strengthen in Second Fiscal Quarter

Bank of America Merrill Lynch 2012 Consumer Conference

OKLAHOMA CITY--()--Sonic Corp. (NASDAQ: SONC), the nation's largest chain of drive-in restaurants, is presenting this week at the Bank of America Merrill Lynch 2012 Consumer Conference. A link to the webcast can be found at the investor section of the company's website, www.sonicdrivein.com, and the event will be available for replay through March 20, 2012, using that same link.

Sonic’s estimated system-wide same-store sales for the second fiscal quarter, which ended February 29, 2012, increased 3.4%. Same-store sales reflected an estimated increase of 3.5% at franchise drive-ins and 3.1% at company drive-ins.

Second Quarter Release and Conference Call

Sonic expects to report its second fiscal quarter results after the market close on March 21, 2012. The company will host a conference call to review financial results on Wednesday, March 21, 2012, at 5:00 PM ET. The conference call can be accessed live over the phone by dialing (877) 397-0250 or (719) 457-2664 for international callers. A replay will be available one hour after the call and can be accessed by dialing (877) 870-5176 or (858) 384-5517 for international callers; the conference ID is 1205487. The replay will be available until Thursday, March 28, 2012. An online replay of the conference call will be available approximately two hours after the conclusion of the live broadcast. A link to this event will be available on the investor section of the company's website, www.sonicdrivein.com.

About Sonic

Sonic, America's Drive-In, originally started as a hamburger and root beer stand in 1953 in Shawnee, Oklahoma called Top Hat Drive-In, and then changed its name to Sonic in 1959. The first drive-in to adopt the Sonic name is still serving customers in Stillwater, Oklahoma. Sonic has more than 3,500 drive-ins coast to coast, where approximately three million customers eat every day. For more information about Sonic Corp. and its subsidiaries, visit Sonic at www.sonicdrivein.com.

This press release contains forward-looking statements within the meaning of the federal securities laws. Forward-looking statements reflect management's expectations regarding future events and operating performance and speak only as of the date hereof. These forward-looking statements involve a number of risks and uncertainties. Factors that could cause actual results to differ materially from those expressed in, or underlying, these forward-looking statements are detailed in the company's annual and quarterly report filings with the Securities and Exchange Commission. The company undertakes no obligation to publicly release revisions to these forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unforeseen events, except as required to be reported under the rules and regulations of the Securities and Exchange Commission.

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Contacts

Sonic Corp.
Claudia San Pedro, 405-225-4846
Vice President of Investor Relations

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Contacts

Sonic Corp.
Claudia San Pedro, 405-225-4846
Vice President of Investor Relations