| Owner | Manager | From | Until | | Galena Navigation Company - Houston, Texas, USA | | 1921/04 | 1929 |
| Texas Oil Company - New York, NY, USA | | 1929 | 1956 |
| Cleveland Tankers Inc. - Cleveland, Ohio, USA | | 1956 | 1966 |
| National Marine Service Company - St. Louis, Missouri, USA | | 1966 | 1968/01 |
| Charles A. Kurz & Company - Philadelphia, PA, USA | | 1968/01 | 1968/04 |
| Union Carbide Corporation - USA | | 1968/04 | 1968/08 |
| United States Maritime Commission - USA | | 1968/08 | 1968/12 |
| Sturgeon Bay Iron & Metal Company - USA | | 1968/12 | 1971 |
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| Fleet | From | Until | | Cleveland Tankers Inc. - Cleveland, Ohio | 1956 | 1966 |
|