| Business | Phone |
| A-1 Drilling 405 E Lakeway Rd, Gillette 82718 | (307) 685-6462 |
| Blasthole Drillers 2500 Dove Rd, Gillette 82718 | (307) 685-0940 |
| Champion Drilling Inc Gillette 82716 | (307) 686-8277 |
| Gem Drilling 2675 Hannum Rd, Gillette 82716 | (307) 686-6587 |
| Gustin Drilling 5521 Swanson Rd, Gillette 82718 | (307) 686-9220 |
| H & H Drilling 1807 Echeta Rd, Gillette 82716 | (307) 685-4213 |
| Madry Drilling 1111 S Gurley Ave, Gillette 82716 | (307) 673-6006 |
| Matheson Drilling Inc 6400 Antelope Valley St, Gillette 82718 | (307) 686-0791 |
| Maxim Drilling & Exploration 901 S 4j Rd, Gillette 82716 | (307) 682-2506 |
| Simmons Drilling Corp 1031 S Gurley Ave, Gillette 82716 | (307) 685-3676 |
| R & L Methane & Water Well Svc 205 Newton Rd, Gillette 82716 | (307) 685-6465 |
| Phoenix Energy 3851 Collins Rd E, Gillette 82718 | (307) 685-3336 |