| 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 | 1140 | 10-27-2014 | | | NB-CD | Approves PDC Energy, Inc.’s request for an order to among other things: Pool all interests in an approximate 160-acre designated wellbore spacing unit established for the Application Lands, for the development and operation of the Codell-Niobrara Formation |
| 407 | 2603 | 09-17-2018 | | | NB-CD, NBRR | Approves pooling all interests in one approximate 680-acre designated horizontal wellbore spacing unit, seven approximate 720-acre designated horizontal wellbore spacing units, and one approximate 360-acre designated horizontal wellbore spacing unit, for the development and operation of the Niobrara and Codell Formations, effective as of the earlier of the date of the Application, or the date that any of the costs specified in §34-60-116(7)(b)(II), C.R.S., are first incurred for the drilling of the Wells Ranch State #BB09-617 Well (API No. 05-123-44948); the Wells Ranch #BB09-626 Well (API No. 05-123-44953); the Wells Ranch #BB09-639 Well (API No. 05-123-44952); the Wells Ranch #BB09-649 Well (API No. 05-123-44958); the Wells Ranch #BB09-650 Well (API No. 05-123-44963); the Wells Ranch #BB09-654 Well (API No. 05-123-44960); the Wells Ranch #BB09-665 Well (API No. 05-123-44967); the Wells Ranch #BB09-674 Well (API No. 05-123-44964); and the Wells Ranch State #BB09-683 Well (API No. 05-123-44965) |
| 407 | 2926 | 09-25-2019 | | | NBRR | Among others things: all interests in the designated horizontal wellbore spacing units established for the Application Lands are hereby pooled, for the development and operation of the Niobrara Formation, effective as the date the Application was filed. |