| Business | Phone |
| Add Oilfield Svc Inc 12000 Washington St, Denver 80241 | (720) 929-0885 |
| Baker Hughes Inteq 1675 Broadway # 1500, Denver 80202 | (303) 573-2700 |
| Bj Services Co 1660 Lincoln St # 1600, Denver 80264 | (303) 832-3722 |
| Chief Well Logging Co 1801 Broadway # 750, Denver 80202 | (303) 296-3129 |
| Co Tubulars Co 410 17th St # 1170, Denver 80202 | (720) 904-5920 |
| Corion Diamond Products Usa 1600 Broadway # 2400, Denver 80202 | (303) 292-6999 |
| Fmc Energy Systems 475 17th St # 544, Denver 80202 | (303) 382-1010 |
| Halliburton Energy Svc 410 17th St # 900, Denver 80202 | (303) 436-9152 |
| Welldog Inc 1616 17th St, Denver 80202 | (303) 262-6040 |
| Wallace Energy Inc 771 Steele St, Denver 80206 | (303) 394-0066 |
| Newcastle Services 1630 Welton St, Denver 80202 | (303) 996-4910 |
| Precision Energy Svc 1641 California St # 416, Denver 80202 | (303) 296-7497 |
| Pro-Technics Intl Inc 2120 S Holly St # 103, Denver 80222 | (303) 757-6222 |