Okla. Const. art. V, § 53

Release or extinguishment of debts or liabilities to state, county or municipality. Except as to tax and assessment charges against real property remaining delinquent and unpaid for a period of time as long or longer than that provided by law to authorize the taking title to real property by prescription, the Legislature shall have no power to release or extinguish, or to authorize the releasing or extinguishing, in whole or in part, the indebtedness, liabilities, or obligations of any corporation or individual, to this State, or any county or other municipal corporation thereof. Amended by State Question No. 361, Referendum Petition No. 107, adopted at general election held on Nov. 2, 1954.