CORRECTED: Sonic to Broadcast Year-End 2008 Conference Call Live on the Internet

OKLAHOMA CITY--(BUSINESS WIRE)--Earlier today, Sonic Corp. incorrectly stated that it would issue its year-end earnings release after the close of market trading on Thursday, October 16, 2008. Instead, Sonic Corp. will release year-end results before the opening of market trading on Friday, October 17, 2008. Sonic's webcast, scheduled to begin at 10 a.m. Eastern Time on Friday, October 17, 2008, remains unchanged.

Sonic Corp. (NASDAQ: SONC), the nation's largest chain of drive-in restaurants, today announced that it will provide an online Web simulcast of its year-end fiscal 2008 earnings release conference call on Friday, October 17, 2008. During that call, management will comment on Sonic's financial and operational results for the fourth quarter and fiscal year ended August 31, 2008, which will be released before the opening of market trading on Friday, October 17, 2008.

The live broadcast of Sonic's conference call will begin at 10:00 a.m. Eastern Time on October 17, 2008. An online replay will be available approximately two hours following the conclusion of the live broadcast and will continue through November 17, 2008. Links to these events may be found at 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, Okla., 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, Okla. Sonic has more than 3,400 drive-ins coast to coast, where more than a million customers eat every day. For more information about Sonic Corp. and its subsidiaries, visit Sonic at www.sonicdrivein.com.

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