All 3 companies
A–Z by legal name| Company | Registry number | Registered | Status | City |
|---|---|---|---|---|
| SEFEL GEOPHYSICAL LTD. | FB006664 | 1979-06-12 | Revoked | CALGARY |
| TRICENTROL UNITED STATES, INC. | FB006894 | 1979-12-17 | Inactive | CALGARY |
| WESTERN LAND SERVICES INC. | FB006668 | 1979-06-14 | Revoked | CALGARY |