| Business | Phone |
| Golden State Drilling Inc 3500 Fruitvale Ave, Bakersfield 93308 | (661) 589-0730 |
| Scientific Drilling Intl 4516 District Blvd, Bakersfield 93313 | (661) 831-0636 |
| Core Energy Llc 4300 Easton Dr, Bakersfield 93309 | (661) 325-7497 |
| G & H Rathole Drilling Inc 3504 Standard St, Bakersfield 93308 | (661) 323-7142 |
| Sheridan Drilling Inc Bakersfield 93309 | (661) 397-6536 |
| Pro Rod Usa 5060 California Ave, Bakersfield 93309 | (661) 616-0545 |
| Krummrich Engineering 11109 Lonon Ave, Bakersfield 93312 | (661) 587-5166 |
| Core Energy Llc 2100 24th St, Bakersfield 93301 | (661) 325-7497 |