Okla. Stat. tit. 36, § 36-1918: Proof of claims; notice; hearing

A. All claims against an insurer against which delinquency

proceedings have been begun shall set forth in reasonable detail the

amount of the claim, or the basis upon which such amount can be

ascertained, the facts upon which the claim is based, and the

priorities asserted, if any. All such claims shall be signed by the

claimant, or someone authorized to act on his or her behalf , and

shall be supported by such documents as may be material thereto.

Claimant shall, in the time and manner set forth by the receiver,

fully comply with any and all requests by the receiver for claimant

to provide information or evidence supplementary to that required in

this article, including, but not limited to, testimony under oath,

affidavits, and depositions.

B. All claims filed in this state shall be filed with the

receiver, whether domiciliary or ancillary, in this state, on or

before the last date for filing as specified by the court.

C. Within such period as the court may fix, the receiver shall

report the claim to the court, specifying in such report a

recommendation with respect to the action to be taken thereon. Upon

receipt of such report, the court shall fix a time for hearing the

claim and shall direct that the claimant or the receiver, as the

court shall specify, shall give such notice as the court shall

determine to such persons as shall appear to the court to be

interested therein. All such notices shall specify the time and

place of the hearing and shall concisely state the amount and nature

of the claim, the priorities asserted, if any, and the

recommendation of the receiver with reference thereto.

D. At the hearing, all persons interested shall be entitled to

appear and the court shall enter an order allowing, allowing in

part, or disallowing the claim. Any such order shall be deemed to

be an appealable order.