Okla. Stat. tit. 66, § 66-61: Right-of-way on public lands - Damages to occupants

Any railroad corporation is authorized to pass over, occupy and

enjoy all the public lands, to the extent and in the manner

prescribed by the Act of Congress approved March 3, 1875: Provided,

that the damages accruing to any occupant or possessory claimant or

other person who may reside on or have improvements upon said public

land, shall be determined and paid by said railroad corporation as

provided in this chapter for owners of private lands.