| Business | Phone |
| Anderson Management Co 800 Fortification Rd, Gillette 82716 | (307) 682-6049 |
| Ballard Petroleum 910 E 3rd St # B, Gillette 82716 | (307) 685-0217 |
| Citation Oil & Gas Corp Bishop Rd, Gillette 82716 | (307) 682-1415 |
| D & D Oil 208 E Lakeway Rd, Gillette 82718 | (307) 687-0185 |
| Equitable Oil 9393 State Highway 59 S, Gillette 82718 | (307) 686-0443 |
| Homax Oil Sales 521 E Boxelder Rd, Gillette 82718 | (307) 685-4283 |
| Kennedy Oil 222 S Gillette Ave 302, Gillette 82716 | (307) 682-1629 |
| Kennedy Oil 700 W 6th St, Gillette 82716 | (307) 682-3107 |
| Marathon Oil Co 3601 Southern Dr, Gillette 82718 | (307) 682-4843 |
| Medicine Bow Operating Co 1901 Energy Ct 135, Gillette 82718 | (307) 687-7903 |
| Merit Energy 1601 E 6th St B, Gillette 82716 | (307) 685-1400 |
| Citation Oil & Gas 1901 Energy Ct 110, Gillette 82718 | (307) 682-1348 |
| Whiting Petroleum Corp Gillette 82716 | (307) 682-9122 |
| Tlc Oil Tools 303 Industrial Park Dr, Gillette 82718 | (307) 682-2746 |
| Primary Natural Resources 910 E 3rd St D, Gillette 82716 | (307) 687-1541 |
| Primary Natural Resources Inc 1460 Hilight Rd, Gillette 82718 | (307) 939-1395 |
| Pathfinder Operating Co 500 Industrial Park Dr, Gillette 82718 | (307) 686-5716 |