Wyo. Stat. § 29-3-105 (2026)

notice to purchaser required; effect of notice; purchaser to
withhold payments.

    (a)   The lien provided by this chapter covers:

          (i) All the production of oil, gas and ore and
minerals in solid form attributable to the interest subject to
the lien;

          (ii) The proceeds of production attaching to the
working interest as the working interest existed on the date
labor was first performed or materials were first furnished;

          (iii)   Any well;
            (iv)    Oil derricks;

            (v)    Oil tanks;

            (vi)    Any pipelines including rights-of-way;

            (vii)    Any mine or quarry;

            (viii)    All materials furnished for use with work
done; and

          (ix) The whole of the land or leasehold (or, in the
case of validly pooled or unitized lands, leases or interests,
the lands, leases or interests so pooled or unitized) and
including all other wells, buildings, property and
appurtenances, including water rights, located on the land or
leasehold (or pooled or unitized lands, leases or interests)
where work was performed or materials furnished.

     (b) Any lien claimed pursuant to this chapter covering
oil, gas or ore and minerals in solid form or the proceeds of
their sale is not effective against any purchaser of the oil,
gas or ore and minerals in solid form until written notice of
the claim is delivered by certified mail, return receipt
requested, to the purchaser at his principal place of business.
Notice shall state:

            (i)    The name of the claimant;

            (ii)    His address;

            (iii)    The amount of the lien; and

          (iv) The description of the interest on which the
lien is claimed.

     (c) The production of any mineral interest or working
interest otherwise subject to a lien under this chapter is not
to be encumbered until notice of the lien is delivered as
provided in subsection (b) of this section to the holder of the
interest. At the time notice is given any proceeds remaining
unpaid or any proceeds yet to be paid on future sales of the
mineral production shall be encumbered by the lien.

     (d) A purchaser shall withhold payments for oil or gas
runs or ore and minerals in solid form to the extent of the lien
amount claimed until delivery of written notice the claim is
settled or until otherwise ordered by a court of competent
jurisdiction.