Big Ledge Mine — Inspections
Total: 18 inspections
| Begin | End | Operator | Hours | Inspectors |
|---|---|---|---|---|
| 09/13/2016 | 10/03/2016 | National Oilwell Varco, LP | 11.00 | 1 |
| 05/12/2016 | 05/12/2016 | National Oilwell Varco, LP | 2.00 | 1 |
| 04/22/2015 | 04/23/2015 | National Oilwell Varco, LP | 10.00 | 1 |
| 09/17/2014 | 10/01/2014 | National Oilwell Varco, LP | 5.50 | 1 |
| 12/09/2013 | 12/11/2013 | National Oilwell Varco, LP | 6.00 | 1 |
| 03/15/2013 | 03/25/2013 | National Oilwell Varco, LP | 25.50 | 1 |
| 12/21/2011 | 12/22/2011 | National Oilwell Varco, LP | 10.00 | 1 |
| 08/17/2011 | 08/18/2011 | National Oilwell Varco, LP | 10.75 | 1 |
| 08/16/2011 | 08/16/2011 | National Oilwell Varco, LP | 9.75 | 1 |
| 07/07/2011 | 07/08/2011 | National Oilwell Varco, LP | 4.50 | 1 |
| 07/01/2011 | 07/01/2011 | National Oilwell Varco, LP | 19.50 | 2 |
| 09/14/2009 | 09/15/2009 | National Oilwell Varco, LP | 10.00 | 1 |
| 01/13/2009 | 01/14/2009 | Spirit Minerals LP | 14.75 | 1 |
| 04/09/2008 | 04/10/2008 | Spirit Minerals LP | 15.25 | 1 |
| 04/02/2008 | 04/03/2008 | Spirit Minerals LP | 8.50 | 1 |
| 04/02/2008 | 04/03/2008 | Spirit Minerals LP | 11.75 | 1 |
| 03/11/2008 | 03/11/2008 | Spirit Minerals LP | 6.50 | 1 |
| 07/17/2007 | 07/17/2007 | Spirit Minerals LP | 10.25 | 1 |