(a) Pursuant to W.S. 36-6-101(c), the Director shall approve or disapprove any assignment or transfer of a lease or an interest therein. Assignments shall be submitted for approval in duplicate on the form provided by the Office. If an assignment transfers an interest in more than one lease, an extra duly executed copy of the assignment or a photostatic copy of the original assignment shall be furnished for each lease in which an interest is transferred. The required filing fee must be paid for each separate lease in which an interest is assigned.
(b) The Director shall approve an assignment which has been properly executed and appears to comply with the law and this chapter, unless he determines that:
(c) If the Director disapproves an assignment, he shall advise the assignee by letter of his decision, the reason for disapproval, and when possible, advise what action is necessary to secure approval.
(d) An assignment or transfer of a lease or any interest therein, including overriding royalties and other cost-free interests created out of the leasehold estate, must be in writing and executed and acknowledged in accordance with the requirements of the law applicable to conveyances of interest in real estate. The instrument must clearly set forth the serial number of the lease, accurately describe the lands affected, the interest being conveyed as a percentage of total leasehold, and be free of any ambiguity.
060-18 Wyo. Code R. § 18-10