| Name: | O S C A 1 |
| Type: | Tank Barge |
| Launched: | 06/09/1951 |
| Completed: | 12/1951 |
| Builder: | Clelands (Successors) Ltd |
| Yard: | Willington Quay |
| Yard Number: | 169 |
| Dimensions: | 110grt, 95nrt, 67.0 x 30.0 x 6.0ft |
| Engines: | None |
| Engines by: | n/a |
| Propulsion: | None |
| Construction: | Steel |
| Reg Number: | 191843 |
| History: | |
| 12/1951 | Oil Storage Co of Apapa Ltd, Lagos |
| 1954 | Socony-Vacuum Oil Co (Nigeria) Ltd, Lagos; renamed PEGASUS 1 |
| No later history known | |
| Comments: | One of an order for eight articulated barge units |
| Two of the units were fore sections with swim ends | |
| Four of the units were mid sections | |
| Two of the units were aft sections with rudders | |
| This was a forward unit |