| dakota oil and gas co | 0.14 | 0.5 | 5155 | 21 | 64 |
| dakota oil and gas company | 1.74 | 0.9 | 4470 | 26 | 13 |
| north dakota oil and gas commission | 0.08 | 0.6 | 3509 | 35 | 19 |
| north dakota oil and gas commission website | 1.09 | 1 | 885 | 43 | 79 |
| north dakota oil and gas companies | 1.27 | 0.6 | 2529 | 34 | 44 |
| south dakota oil and gas commission | 0.37 | 0.2 | 5322 | 35 | 45 |
| cobra oil and gas north dakota | 1.94 | 0.8 | 5525 | 30 | 98 |
| oil and gas companies in south dakota | 1.88 | 0.1 | 4242 | 37 | 76 |
| south dakota oil & gas commission | 0.49 | 0.1 | 3521 | 33 | 99 |
| oil and gas companies in dakota | 0.63 | 0.9 | 9216 | 31 | 87 |
| oil and gas north dakota | 0.9 | 0.5 | 6530 | 24 | 48 |
| oil company north dakota | 1.87 | 0.6 | 7882 | 24 | 89 |
| south dakota oil and gas | 0.47 | 0.6 | 1308 | 24 | 78 |
| north dakota oil and gas website | 1.96 | 0.2 | 8056 | 32 | 73 |
| dakota petroleum services llc | 1.78 | 0.5 | 907 | 29 | 14 |
| montana dakota gas company | 1.12 | 0.4 | 7722 | 26 | 39 |
| oil companies operating in north dakota | 0.13 | 0.9 | 1090 | 39 | 91 |
| oil in n dakota | 1.59 | 0.6 | 9746 | 15 | 31 |
| north dakota based oil companies | 1.27 | 0.3 | 105 | 32 | 81 |
