Wyo. Stat. § 24-8-105: Investment of state money.

Whenever the state treasurer shall have in his hands any funds whether permanent state funds or other funds available for investment he may, in his discretion, purchase state highway bonds and invest therein at not to exceed the market value such portion of the available funds as he may deem expedient. Any premiums which may be paid for such bonds shall be taken from other than permanent funds.