By Kristy Loyall Cordell & Cordell Oklahoma Divorce Lawyer In the Oklahoma divorce process, an action for divorce begins with filing the Petition for Dissolution of Marriage. The person filing for the divorce is the Petitioner and the party responding to the proceeding is the Respondent. 43 O.S. §105. Oklahoma Divorce Process: Filing The Petition The Petition is the lawsuit for the divorce. A divorce in Oklahoma cannot be granted without a party beginning the proceeding by filing the Petition. Oklahoma is a “notice filing” state. This means that the pleadings simply have to put the other party on notice Read more