Okla. Stat. tit. 15, § 15-564: Contract of sale - When invalid

Any contract of sale for the future delivery of cotton, grain,

stocks or other commodities, which is to be settled according to or

upon the basis of the public market quotations or prices made on any

board of trade, exchange or similar institutions, upon which

contracts of sale for future delivery are executed and dealt in

without any actual bonifide execution and the carrying out or

discharge of such contracts upon the floor of such exchange, board

of trade, or similar institution in accordance with the rules

thereof, shall be null and void and unenforceable in any court of

this state, and no action shall lie thereon at the suit of any party

thereto.