| 535 | 3 | 02-22-2011 | 85251 | UNNAMED | NBRR | Approves the request for an order to establish one hundred and sixty (160) approximate 640-acre drilling and spacing units for certain lands in Townships 8, 9 and 10, North, Ranges 58 through 61, West, 6th P.M., and allow one horizontal well in each unit, for the production of oil, gas and associated hydrocarbons from the Niobrara Formation. |
| 535 | 451 | 12-16-2013 | 85251 | UNNAMED | NB-CD | Approves the request for an order to: 1) vacate three approximate 640-acre drilling and spacing units established by Order No. 535-3 for Sections 2, 11 and 12, Township 9 North, Range 58 West, 6th P.M.; 2) vacate an approximate 640-acre drilling and spacing unit established by Order No. 535-69 for Section 1, Township 9 North, Range 58 West, 6th P.M.; 3) vacate Order No. 535-126; and 4) establish an approximate 3,200-acre unconventional resource unit (URU) consisting of Sections 1, 2, 11, 12 and 36, Townships 9 and 10 North, Range 58 West, 6th P.M., for the production of oil, gas and associated hydrocarbons from the Codell-Niobrara Formation. |