| Owner | Manager | From | Until | | Britamoil Ltd. - Toronto, Ontario, Canada | | 1931/06 | 1946/01 |
| Gayport Shipping Ltd. - Toronto, Ontario, Canada | | 1946/01 | 1959/01 |
| Hall Corporation of Canada - Canada | | 1959/01 | 1963/01 |
| d'Alesio & Castaldi - Italy | | 1963/01 | 1965/01 |
| P.G. & M. Castaldi - Italy | | 1965/01 | 1972/01 |
| Cabotaggi SpA - Italy | | 1972/01 | 1977/01 |
| Navalcarena SpA - Italy | | 1977/01 | 1978/01 |
| Francesco Lombardo - Italy | | 1978/01 | 1979/01 |
| Societa Navale Spezzina Naval S.p.A. - Italy | | 1979/01 | 1981/01 |
|
| Fleet | From | Until | | British-American Oil Company (B/A) - Toronto, Ontario | 1931/06 | 1946/01 |
| Gayport Shipping Ltd. - Toronto, Ontario | 1946/01 | 1959/01 |
| Hall Corporation of Canada - Toronto, Ontario | 1959/01 | 1963/01 |
|