Okla. Stat. tit. 36, § 36-1917

A. In a delinquency proceeding in a reciprocal state against an

insurer domiciled in that state, claimants against such insurer who

reside within this state may file claims either with the ancillary

receiver, if any, appointed in this state, or with the domiciliary

receiver. All such claims must be filed on or before the last date

fixed for the filing of claims in the domiciliary delinquency

proceedings.

B. Controverted claims belonging to claimants residing in this

state may either (1) be proved in the domiciliary state as provided

by the law of that state, or (2) if ancillary proceedings have been

commenced in this state, be approved in those proceedings. In the

event that any such claimant elects to prove his claim in this

state, he shall file his claim with the ancillary receiver and shall

give notice in writing to the receiver in the domiciliary state,

either by registered mail or by personal service at least forty days

prior to the date set for hearing. The notice shall contain a

concise statement of the amount of the claim, the facts on which the

claim is based, and the priorities asserted, if any. If the

domiciliary receiver within thirty (30) days after the giving of

such notice shall give notice in writing to the ancillary receiver

and to the claimant, either by registered mail or by personal

service, of his intention to contest such claim, he shall be

entitled to appear or to be represented in any proceeding in this

state involving adjudication of the claim. The final allowance of

the claim by the courts of this state shall be accepted as

conclusive as to its amount and shall also be accepted as conclusive

as to its priority, if any, against special deposits or other

security located within this state.