| 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 | 1979 | 05-01-2017 | | | NB-CD | Approves Bill Barrett Corporation’s request for an order to among other things: Establish an approximate 1,280-acre drilling and spacing unit for the Application Lands and approve up to 16 horizontal wells in the unit, for the production of oil, gas and associated hydrocarbons from the Codell and Niobrara Formations. |