| Owner | Manager | From | Until | | Gulfcoast Transit Company - Tampa, Florida | | 1967 | 2002 |
| TECO Ocean Shipping Company - Tampa, Florida | | 2002 | 2003 |
| McAllister Towing and Transportation Company - New York, New York | | 2003 | 2008 |
| Port City Tug Company - Grosse Point, Michigan | | 2008 | |
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| Fleet | From | Until | | Gulfcoast Transit Company (div. of Tampa Electric Co.) - Tampa, Florida | 1967 | 2002 |
| Port City Marine Services Inc. - Muskegon, Michigan | 2008 | |
| McAllister Towing & Transportation Company - New York, NY | 2001 | |
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