Wyo. Stat. Ann. § 99-1-306
There is appropriated from water development account I to the commission twenty-seven million dollars ($27,000,000.00) or as much thereof as is necessary to carry out the purpose of this act [§§ 99-1-301 through 99-1-306]. Unexpended funds appropriated under this section shall revert to water development account I on July 1, 1998. (Laws 1990, ch. 83, § 6; 1994, ch. 28, § 11; 1997, ch. 45, § 5.)