| 407 | 87 | 02-19-1992 | | | CODL, NB-CD, NBRR | Approves the request to establish spacing for the Niobrara Formation for certain lands previously spaced for the Codell Formation and to allow the downhole commingling of production from the Codell and Niobrara Formations. |
| 407 | 467 | 08-08-2011 | | | NBRR | Approves the request for an order to establish an approximate 320-acre wellbore spacing unit for the S½ N½ and N½ S½ of Section 14, Township 6 North, Range 65 West, 6th P.M., and approve one horizontal well within the unit, for the production of oil and gas, and associated hydrocarbons from the Niobrara Formation. |
| 464 | 3 | 01-16-1990 | | | PRKM | Amends Order No. 464 1 by increasing the spaced area for the production of oil from the Parkman formation found under Sections 26, 27, 35 and 36 T6N R65W 6th PM. |