All 3 companies
A–Z by legal name| Company | Registry number | Registered | Status | City |
|---|---|---|---|---|
| FWA DRILLING COMPANY, INC. | 7158090 | 1981-07-15 | Withdrawn | WAYNE |
| HUMBOLDT INDUSTRIES, INC. | 720870 | 1981-10-28 | Active | WAYNE |
| WILLISTON OIL CORPORATION | 7162274 | 1981-11-20 | Suspended | WAYNE |