| Business | Phone |
| Wells Petroleum Inc 602 Park Point Dr, Golden 80401 | (303) 526-5971 |
| Berry Energy Inc 1717 Washington Ave # 200, Golden 80401 | (303) 279-0190 |
| Surtek Inc 1511 Washington Ave, Golden 80401 | (303) 278-0877 |
| Rock Ex Co 172 S Holman Way, Golden 80401 | (303) 384-3485 |
| Diversified Operating Corp 15000 W 6th Ave # 102, Golden 80401 | (303) 384-9611 |
| R Alan Woodard Golden 80401 | (303) 215-0680 |
| Extex Land & Administration 17301 W Colfax Ave # 406, Golden 80401 | (303) 463-8799 |
| Glenwood Resources Inc Golden 80401 | (303) 278-9282 |
| Graystone Labs Inc 15400 W 44th Ave, Golden 80403 | (303) 278-3252 |
| Hoovler Ventures 1019 8th St # 105, Golden 80401 | (303) 384-0795 |