C.R.S. § 37-90-143

(1) Effective July 1, 1994, any owner of an unexpired well permit issued pursuant to this article or article 92 of this title who changes a name or mailing address from that on file with the office of the state engineer shall file an update to the name or mailing address with the state engineer by January 1, 1995, on a form prescribed by the state engineer. (2) Effective January 1, 1995, any owner of an unexpired well permit issued pursuant to this article 90 or article 92 of this title 37 who changes a name or contact information from that on file with the state engineer shall file an update with the state engineer within sixty-three days after the date of the change, on a form prescribed by the state engineer.