Okla. Stat. tit. 12, § 12-52: Appointment of substitute for sheriff

The court or judge, or any clerk in the absence of the judge

from the county, for good cause, may appoint a person to serve a

particular process or order, who shall have the same power to

execute it which the sheriff has. The person may be appointed on

the application of the party obtaining the process or order, and the

return must be verified by affidavit. He shall be entitled to the

same fees allowed to the sheriff for similar services.