CONTACT
Toll Free: 800-700-0777 (24 Hour Number)
Tulsa: 918-437-9999 (24 Hour Number)
Tulsa: 918-832-8888 (24 Hour Number)
Oklahoma City: 405-235-9999 (24 Hour Number)
Fort Smith: 479-782-9999 (24 Hour Number)
Toll Free Fax: 866-738-8713
General Email: info@ersok.com
Mailing Address: P.O. Box 6344, Tulsa, OK 74149
Physical Address: 1105 North Peoria, Tulsa, OK 74106