| Name: | OKA |
| Type: | Tanker |
| Launched: | 22/09/1888 |
| Completed: | 11/1888 |
| Builder: | Palmers' Shipbuilding & Iron Co Ltd |
| Yard: | Jarrow |
| Yard Number: | 597 |
| Dimensions: | 3095grt, 1995nrt, 334.4 x 44.0 x 24.9ft |
| Engines: | T3cyl (26, 43 & 69 x 45ins), 351nhp |
| Engines by: | Palmers' Shipbuilding & Iron Co Ltd, Jarrow |
| Propulsion: | 1 x Screw |
| Construction: | Steel |
| Reg Number: | 95490 |
| History: | |
| 10/11/1888 | Era Steam Ship Co Ltd, London |
| 1891 | Steamship Broadmayne Ltd (A Suart), London; renamed BROADMAYNE |
| 1895 | Petroleum Shipping Co of London Ltd (A Suart), London |
| 1897 | European Petroleum Co Ltd (A Suart), London |
| 1900 | Manager became WA McMullen |
| 1903 | Manager became J Clark |
| 1910 | London & Thames Haven Oil Wharves Ltd, London |
| 1911 | Associated Oil Carriers Ltd (JI Jacobs & Co),London |
| 02/01/1921 | Wrecked |
| Comments: | 02/01/1921: Wrecked in Inner Froward Point at the entrance to Dartmouth |
| On a voyage from London to Dartmouth and Newport News in ballast |