Okla. Stat. tit. 43, § 43-133: Setting aside of divorce decrees upon petition of parties

When a decree of divorce has been issued by a district or

superior court, said court is hereby authorized to dissolve said

decree at any future time, in or out of the term wherein the decree

was granted, provided that both parties to the divorce action file a

petition, signed by both parties, asking that said decree be set

aside and held for naught. And further provided that both parties

seeking to have the decree set aside shall make proof to the court

that neither one has married a third party during the time since the

issuance of the decree of divorce.