Every person who takes an oath before an officer or person authorized to administer judicial oaths, except when such oath is required or authorized by law, or is required by the provisions of some contract as the basis of or in proof of a claim, or when the same has been agreed to be received by some person as proof of any fact, in the performance of any contract, obligation or duty instead of other evidence, is guilty of a misdemeanor. R.L.1910, § 2253.
Oklahoma Legal Code