Okla. Stat. tit. 15, § 250A

The provisions of the Fair Practices of Equipment Manufacturers, Distributors, Wholesalers and Dealers Act shall be supplemental to any dealer agreement between the dealer and the supplier which provides the dealer with greater protection. The dealer can elect to pursue its contract remedy or the remedy provided by state law, or both, and an election by the dealer to pursue such remedies shall not bar its right to exercise any other remedies that may be granted at law or in equity.