Okla. Stat. tit. 60, § 60-1608.12

A. A trustee shall keep the qualified beneficiaries of the

trust reasonably informed about the administration of the trust and

of the material facts necessary for them to protect their interests.

Unless unreasonable under the circumstances, a trustee shall

promptly respond to a beneficiary's request for information related

to the administration of the trust.

B. A trustee:

1. Upon request of a qualified beneficiary, shall promptly

furnish to the qualified beneficiary a copy of the trust instrument;

2. Within sixty (60) days after accepting a trusteeship, shall

notify the qualified beneficiaries of the acceptance and of the

trustee's name, address, and telephone number;

3. Within sixty (60) days after the date the trustee acquires

knowledge of the creation of an irrevocable trust, or the date the

trustee acquires knowledge that a formerly revocable trust has

become irrevocable, whether by the death of the settlor or

otherwise, shall notify the qualified beneficiaries of the trust's

existence, of the identity of the settlor or settlors, of the right

to request a copy of the trust instrument, and of the right to a

trustee's report as provided in subsection C of this section; and

Oklahoma Statutes - Title 60. Property Page 319

4. Shall notify the qualified beneficiaries in advance of any

change in the method or rate of the trustee's compensation.

C. A trustee shall send to the distributees or permissible

distributees of trust income or principal, and to other qualified

beneficiaries who request it, at least annually and at the

termination of the trust, a report of the trust property,

liabilities, receipts, and disbursements, including the source and

amount of the trustee's compensation, a listing of the trust assets

and, if feasible, their respective market values. Upon a vacancy in

a trusteeship, unless a co-trustee remains in office, a report must

be sent to the qualified beneficiaries by the former trustee. A

personal representative or guardian may send the qualified

beneficiaries a report on behalf of a deceased or incapacitated

trustee.

D. A beneficiary may waive the right to a trustee's report or

other information otherwise required to be furnished under this

section. A beneficiary, with respect to future reports and other

information, may withdraw a waiver previously given.

E. Paragraphs 2 and 3 of subsection B of this section do not

apply to a trustee who accepts a trusteeship before the effective

date of this act, to an irrevocable trust created before the

effective date of this act, or to a revocable trust that becomes

irrevocable before the effective date of this act.