| Owner | Manager | From | Until | | United Offshore Tugs Incorporated - Harvey, Louisiana, USA | | 1977/07 | 1978 |
| King's Marine International Corporation - Gretna, Louisiana, USA | Toche Southern Leasing Partners Inc. | 1978 | 1981 |
| King's Marine International Corporation - Gretna, Louisiana, USA | | 1981 | 1984 |
| Hannah Marine Corportion - Lemont, Illinois, USA | | 1984 | 2009 |
| Port City Tugs Incorporated - Muskegon, Michigan, USA | | 2009 | |
|
| Fleet | From | Until | | Hannah Marine Corporation - Lemont, Illinois | 1984 | 2009 |
| Port City Marine Services Inc. - Muskegon, Michigan | 2009 | |
|