| 535 | 42 | 06-27-2011 | 85251 | UNNAMED | NBRR | Approves the request for an order to establish eight (8) approximate 640-acre drilling and spacing units for certain lands located in Township 9 North, Range 57 West, 6th P.M., and approve one horizontal well within each unit, for the production of gas and associated hydrocarbons from the Niobrara Formation. |
| 535 | 481 | 04-28-2014 | 85251 | UNNAMED | NBRR | Approves the request for an order to among other things: 1) Vacate three approximate 640-acre drilling and spacing units established by Order No. 535-42 for Sections 7, 8 and 17, Township 9 North, Range 57 West, 6th P.M. 2) Establish five approximate 960-acre drilling and spacing units for the Niobrara Formation. 3) Approve up to 16 horizontal wells within each unit. |
| 535 | 555 | 10-27-2014 | 85251 | UNNAMED | NB-CD | Approves Whiting Oil and Gas Corporation’s request for an order to among other things: 1) Vacate an approximate 640-acre drilling and spacing unit established by Order No. 535-42 for Section 17, Township 9 North, Range 57 West, 6th P.M.; 2) Establish an approximate 960-acre drilling and spacing unit for the Application Lands, for the production of oil, gas and associated hydrocarbons from the Niobrara and Codell Formations; 3) Approve up to 32 horizontal wells within the unit. |
| 535 | 638 | 03-02-2015 | 85251 | UNNAMED | NB-CD | Approves Whiting Oil and Gas Corporation’s (Operator No. 96155) request for an order to among other things: 1) Vacate an approximate 640-acre drilling and spacing unit established by Order No. 535-42 for Sections 8, 17, and 20, Township 9 North, Range 57 West, 6th P.M.; 2) Vacate an approximate 960-acre drilling and spacing unit established by Order No. 535-555 for the S½ of Section 8 and all of Section 17, Township 9 North, Range 57 West, 6th P.M.; 3) Establish an approximate 1200-acre drilling and spacing unit for the Application Lands, for the production of oil, gas and associated hydrocarbons from the Codell and Niobrara Formations; 4) Approve up to 32 horizontal wells within the unit. |