The Castleberry Group Franchise Group operates 34 Sonic Drive-In locations throughout Oklahoma and the Texas Panhandle. We strive to provide a professional working atmosphere and are dedicated to employees to help them reach their goals. We aim to provide fast service, quality food and exceptional customer service each and every day. The opportunities individuals have had greatly contributes to the overall success of the company. The Castleberry Group commitment to excellence includes employee and management development.