1 This appeal is from a judgment of the trial court which heard the cause upon remand from a prior appeal, Bullards Oil Field Service, Inc. v. Williford Energy Company, 775 P.2d 802 (Okla. 1989). The appellant, Bullards, which is a regulated common carrier, filed an action alleging that the appellee, Williford, was indebted to it in the amount of $32,007.95 for hauling and disposing of drilling fluids in addition to bulldozer work required to close a reserve pit on a lease operated by appellee. The trial court found the parties had orally agreed to a fixed price for the closing of the pit and that this agreement was in violation of the laws of Oklahoma. The trial court refused to enforce the agreement and ruled that Bullards could recover nothing for its services. On appeal, this Court reversed and remanded the judgment of the trial court and held that the parties were bound by the published tariff rates for Bullards services. The trial court was directed to determine the proper amount due appellant for services rendered, subject to the tariffs, and to determine the parties dispute as to the bulldozer work.