| Business | Phone |
| Anadarko Petroleum Corp 1900 W Warlow Dr A, Gillette 82716 | (307) 685-4130 |
| Ch4 Energy 2107 N Us Highway 14-16, Gillette 82716 | (307) 682-4151 |
| Citation Oil & Gas Corp 1016 E Lincoln St, Gillette 82716 | (307) 682-4853 |
| Clear Creek Natural Gas Llc 3300 2nd St, Gillette 82718 | (307) 686-0310 |
| Coleman Oil & Gas Inc 222 S Gillette Ave 502, Gillette 82716 | (307) 686-2082 |
| Continental Industries 400 S Gillette Ave, Gillette 82716 | (307) 682-1171 |
| First Energy Svc Co 24 Union Chapel Rd, Gillette 82718 | (307) 686-6950 |
| Fitzsimmons 2201 Cabin Ct, Gillette 82718 | (307) 686-3158 |
| Kerr-Mc Gee Oil & Gas Corp 10065 State Highway 59 S A, Gillette 82718 | (307) 687-0318 |
| National Pride Exploration 901 Fairway Dr, Gillette 82718 | (307) 687-2042 |
| Noble Energy Inc E Of Gillette, Gillette 82716 | (307) 682-8534 |
| Palone Petroleum 910 S 4j Rd, Gillette 82716 | (307) 682-1621 |
| Wem Joint Ventures 311 N Burma Ave, Gillette 82716 | (307) 686-2579 |
| Williams Production 300 N Works Ave, Gillette 82716 | (307) 686-1636 |
| Medicine Bow Opertating 307 Black Yellow Rd, Gillette 82718 | (307) 685-2572 |
| Powder River Svc 1305 Echeta Rd, Gillette 82716 | (307) 685-6630 |
| Petro-Canada 3801 N Us Highway 14-16, Gillette 82716 | (307) 686-1240 |
| Phillips Petroleum 801 E 4th St, Gillette 82716 | (307) 682-6033 |