Okla. Stat. tit. 43, § 43-138: Recording of costs in child support enforcement cases -

Assessment against nonprevailing party.

Costs incurred in a child support enforcement case in which a

party is represented by an office operated by or for the benefit of

the Oklahoma Department of Human Services shall be recorded by the

court clerk. The reasonable costs may be assessed by the court

against the nonprevailing party at the conclusion of the

proceedings.