Okla. Stat. tit. 82 § 646
Each member of the board of directors and each appraiser shall receive compensation allowed by the court and his necessary expenses for the time actually employed in performing his duties. Before any duties devolve upon a county clerk or county treasurer under this act the board of directors of the district shall consult them and agree upon the salaries for the extra clerical force, if any, required in their respective offices to carry out the requirements of the law by reason of the establishment of said district, and the said board of directors shall provide for and pay said salaries to said clerk or clerks, while engaged on the work of the district, which clerk shall be selected and appointed by each of said county officers for their respective offices. In case of disagreement as to the compensation of such extra clerical force, the matter shall be referred to the court for its determination.
Okla. Stat. tit. 82, § 646