THE GUARANTOR AND THE LICENSEE, AND EACH OF THEM, HEREBY RELEASE ALL CLAIMS AND CAUSES OF ACTION WHICH THE GUARANTOR OR THE LICENSEE, OR BOTH OF THEM, MAY HAVE AGAINST SONIC, SONIC CORP., AND THEIR SUBSIDIARIES AND AFFILIATES, AND THE STOCKHOLDERS, DIRECTORS, OFFICERS, EMPLOYEES, AND AGENTS OF SONIC, SONIC CORP., AND THEIR SUBSIDIARIES AND AFFILIATES.  THE GUARANTOR AND THE LICENSEE, AND EACH OF THEM, FURTHER COVENANT NOT TO SUE ANY OF THE FOREGOING PERSONS OR ENTITIES ON ACCOUNT OF ANY OF THE FOREGOING CLAIMS OR CAUSES OF ACTION.