Okla. Stat. tit. 85A § 89
If the employer has made advance payments for compensation, the employer shall be entitled to be reimbursed out of any unpaid installment or installments of compensation due. If the injured employee receives full wages during disability, he or she shall not be entitled to compensation during the period. Any wages paid by the employer, over the statutory temporary disability maximum, shall be deducted from the permanent partial disability award. Such deduction shall be made after any such applicable attorney fee and any such assessment made pursuant to Sections 45 and 46 of this title have been paid. Provided, however, no wages paid by the employer in excess of the statutory temporary disability maximum, pursuant to a collective bargaining agreement, shall be deducted from any benefit otherwise available under this title.
Okla. Stat. tit. 85A, § 89