British A.I.O.C. inland sternwheel steam tug Naftak stationed at Abadan, Persia in May 1946

Gross register tonnage 224 tons, horsepower 250 ihp and as dimensions 150.0 (over all) x 32.10 (extreme beam) x 3.0 (maximum loaded draught) feet. Part of the fleet of Anglo-Irian Oil Company (A.I.O.C.).

Source
Quatar Digital Library's digital archive. Naval Intelligence Diversion Admiralty, S.W. 1, Persia Intelligence report May 1946-C.B, 1885 (X) (5/46) Website