Colo. Rev. Stat. § 38-43-105
Any lease which covers minerals or natural resources other than oil or gas or related hydrocarbons shall be for such term and contain such provisions as may be approved by the court. A lease which specifically covers oil and gas and which may also cover other minerals may be for a primary term not exceeding ten years and as long thereafter as oil, or gas, or other minerals may be produced from the premises embraced in such lease or as long as drilling operations are diligently continued. Such oil and gas lease may provide for pooling, unitization, or consolidation of the leased premises, or any part thereof, with other lands in the same general area to establish a cooperative or unit plan of development or operation and for the apportionment of royalties on production from any such unitized area on an acreage basis. The trustee appointed under this article, or any successor trustee, shall have the power at any time while such trust continues, with the approval of the court, to enter into any agreement providing for such pooling or unitization of all or any part of the leased premises and to bind thereby the said property and all owners thereof having any interest therein whether present, future, or contingent.
C.R.S. § 38-43-105