Oklahoma Contents of Petition in Error; Filing is the process of submitting a petition to a court to challenge a ruling or decision of a lower court. It is a type of appeal that allows a party to challenge a lower court's decision in a higher court. The petition must contain certain elements, including a statement of the facts of the case, legal grounds for the challenge, and the relief sought. There are several types of Oklahoma Contents of Petition in Error; Filing, including filing in the Oklahoma Supreme Court, the Oklahoma Court of Criminal Appeals, the Oklahoma Court of Civil Appeals, and the Oklahoma Court of Bankruptcy Appeals.