Okla. Stat. tit. 36, § 36-1930: Time to file claims

If upon commencement of delinquency proceedings under this

article or at any time during the proceedings the insurer shall not

be clearly solvent, the court shall, after such notice and hearing

as it deems proper, make an order declaring the insurer to be

insolvent. Thereupon, regardless of any prior notice which may have

been given to creditors, the Insurance Commissioner shall notify all

persons who may have claims against the insurer and who have not

filed proper proofs thereof to present the same to the Commissioner,

at a place specified in the notice, within four (4) months from the

date of entry of the order, or within a longer time prescribed by

the court not to exceed one hundred eighty (180) days which shall be

specified in the notice. The notice shall be given in a manner

determined by the court.

Only upon application of the liquidator, the receivership court

may allow alternative procedures and requirements for the filing of

proofs of claim or for allowing or proving claims. Upon

application, if the court dispenses with the requirements of filing

a proof of claim by a person, class, or group of persons, a proof of

claim for such a person, class, or group shall be deemed as having

been filed for all purposes, except that the receivership court's

waiver of proof-of-claim requirements shall not impact a guaranty

association's proof-of-claim filing requirement or coverage

determinations to the extent that the guaranty fund statute or

filing requirements are inconsistent with the court's waiver of

proof.

Proofs of claim may be filed after the date specified in the

notice, but no such claim shall share in the distribution of the

assets until all allowed claims, proofs of which have been filed

before that date, have been paid in full with interest.