When it is deemed advisable by the Oklahoma Tax Commission to examine or inspect the books and records of any taxpayer at a location outside this state, the necessary and reasonable expenses of the Tax Commission or its employees incurred in the examination or inspection shall be reimbursed by the state. Reimbursements for all necessary and reasonable expenses provided for in this section may exceed the limits authorized by the State Travel Reimbursement Act.
Okla. Stat. tit. 68, § 206.1