Wyo. Stat. § 41-9-261: Commissioners not to have financial interest in construction contracts.

(a) While in office no commissioner shall be interested directly or indirectly:

(i) In any contract for the construction of any drain, ditch, levee or other work in a drainage district;

(ii) In the sale of materials used for any work in a drainage district; or

(iii) In the wages of or supplies for men or teams employed on any work in a drainage district.