Parent Directory| Name | Size | Last Modified |
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| 0000072207-16-000090-index.html | 2016-06-03 14:24:21 | |
| 0000072207-16-000090.txt | 2016-06-03 14:24:21 | |
| nbl2015_11-kxex231.htm | 3278 | 2016-06-03 14:24:21 |
| nbl_2015401kxform11-k.htm | 266303 | 2016-06-03 14:24:21 |