| Amt Drilling | 304-732-6881 | Rt 10 | Pineville | WV | 24874 |
| Aqua-Clear Inc | 304-343-4792 | 608 Virginia St E | Charleston | WV | 25301 |
| Ayeone Machine & Grinding Co Inc | 304-522-6104 | 801 30th St | Huntington | WV | 25702 |
| Collins Mayo & Linda | 304-253-7681 | Green Valley Addn | Crab Orchard | WV | 25827 |
| Equitable Resources Exploration Inc | 304-472-4610 | Weston Rd | Buckhannon | WV | 26201 |
| Hamon Diamond Core Drilling | 304-742-5117 | Rt 55 | Craigsville | WV | 26205 |
| Hughes L J & Sons Inc Ofc | 304-872-1111 | 320 Turnpike Rd | Summersville | WV | 26651 |
| John Henry Rock Drills Inc | 304-949-1200 | 112 John Henry Dr | Belle | WV | 25015 |
| Moore Drilling Service Inc | 304-937-3466 | 1-A Cedar View Farms | Fraziers Bottom | WV | 25082 |
| Mott B H & Sons Drilling Inc O | 304-529-6201 | 814 8th Ave | Huntington | WV | 25701 |
| National Petroleum Testing | 304-744-9964 | 1625 Oakhurst Dr | Charleston | WV | 25314 |
| North American Drillers Inc | 304-291-0175 | Grafton Rd | Morgantown | WV | 26505 |
| Omni Drilling Inc | 304-366-7707 | 1131 Pleasant Valley Rd | Fairmont | WV | 26555 |
| Phillips Tool Co | 304-986-2345 | Rt 250 S | Mannington | WV | 26582 |
| Pinson Brothers Drilling & Supply Inc | 304-429-4238 | 2150 8th Ave | Huntington | WV | 25703 |
| R & L Drilling Inc | 304-486-5481 | 6033 Upper Gragston Creek Rd | Prichard | WV | 25555 |
| Zeni Drilling Company | 304-328-5665 | US Rt 19 | Cassville | WV | 26527 |
| Zeni Shop | 304-328-5670 | US Rt 19 | Cassville | WV | 26527 |
