Colo. Rev. Stat. § 38-24-101
Every person, firm, or corporation, whether as contractor, subcontractor, materialman, or laborer, who performs labor upon or furnishes machinery, material, fuel, explosives, power, or supplies for sinking, repairing, altering, or operating any gas well, oil well, or other well or for constructing, repairing, or operating any oil derrick, oil tank, oil pipeline or water pipeline, pump or pumping station, transportation or communication line, or gasoline plant and refinery by virtue of a contract, express or implied, with the owner or lessee of any interest in real estate or with the trustee, agent, or receiver of any such owner, part owner, or lessee shall have a lien to secure the payment thereof upon the properties mentioned belonging to the party contracting with the lien claimants, and upon the machinery, materials, and supplies so furnished, and upon any well upon and in which such machinery, materials, and supplies have been placed and used, and upon all other wells, buildings, and appurtenances, and the interest, leasehold, or otherwise, of such owner, part owner, or lessee in the lot or land upon which said improvements are located, or to which they may be removed, to the extent of the right, title, and interest of the owner, part owner, or lessee, at the time the work was commenced or machinery, materials, and supplies were begun to be furnished by the lien claimant or by the contractor under the original contract; and such lien shall extend to any subsequently acquired interest of any such owner, part owner, or lessee.
C.R.S. § 38-24-101