Okla. Stat. tit. 60, § 60-175.48: Compensation or commissions of trustee

A trustee acting in a fiduciary capacity, as herein authorized,

is entitled to receive such compensation or commission as provided

for in the trust agreement or other contract. If the amount of such

compensation or commission is not regulated by or stipulated in the

trust agreement, the trustee may charge and deduct a reasonable

compensation or commission for the services rendered and the

responsibilities assumed. Where the trustee is acting under

appointment by a court, such compensation or commission shall be

paid, irrespective of the provisions in the trust instrument, as

allowed or approved by that court.