Oklahoma Petition for Certiorari to Review Certified Interlocutory Order is a legal document that allows a party in a lawsuit to appeal a court’s interlocutory order to the Oklahoma Supreme Court. An interlocutory order is a court order that is not a final judgement, and is usually issued in the middle of a lawsuit. Oklahoma Petition for Certiorari to Review Certified Interlocutory Order can be filed in two different ways: direct petition or mandamus petition. A direct petition is filed when a party is asking the Supreme Court to review the interlocutory order without the appellate court having to review it first. A mandamus petition is filed when a party appeals a lower court’s interlocutory order to the appellate court, and then to the Supreme Court if the appellate court does not reverse the lower court’s order. The petition must include a detailed explanation of why the party believes the order should be reversed in order for the petition to be successful.