Okla. Stat. tit. 66, § 81
Every such railroad corporation shall start and run its cars, for the transportation of persons or property, at regular times to be fixed by public notice, and shall furnish sufficient accommodation for the transportation of all such passengers and property as shall within a reasonable time previous thereto offer, or be offered, for transportation at the place of starting, or at the junction of other railroads, and at siding or stopping places established for receiving and discharging way passengers and freight, and shall take, transport, and discharge passengers and property at, from, and to such places, on the due payment of tolls, freight, or fare therefor.
R.L. 1910, § 1411.