Wyo. Stat. § 41-7-915: Manner of redeeming.

(a) Callable bonds may be redeemed in addition to other methods permitted in the following manner:

(i) In numerical order or by lot as prescribed in the resolution;

(ii) On any interest payment date prior to their affixed maturity;

(iii) At not exceeding their par value and accrued interest or on the terms provided in the resolution.