| Business | Phone |
| Driltek Inc 841 Mohawk St # 290, Bakersfield 93309 | (661) 327-3021 |
| Walter Dunbar 602 H St, Bakersfield 93304 | (661) 325-4241 |
| Petroleum Technical Scvs 1400 Easton Dr # 135a, Bakersfield 93309 | (661) 323-6005 |
| Petroleum Technical Scvs 901 Tower Way # 102, Bakersfield 93309 | (661) 323-6005 |
| Jon Crawford Petro Engineer 1717 28th St, Bakersfield 93301 | (661) 323-2733 |
| Mahogany Oil & Gas Co 1400 Easton Dr, Bakersfield 93309 | (661) 327-4800 |
| Jon Crawford Petro Engineer 1831 Truxtun Ave # 152, Bakersfield 93301 | (661) 323-2733 |