The tugs of the Soviet Belomor-Omega Steamship Company according to a CIA report dated 30 April 1953

An item reported that the Belomor-Omega Steamship Company or Belomorske-Onezhskoye Parokhodstvo with her central directorate at Petrozavodsk was active on the Onega Lake between Petrozavodsk-Pvenets-Belomorsko-Baltiyskiy Canal and Belomorsk.  She acted in fact as a connection between the Northern Steamship Company and the North western River Steamship Company. Her fleet numbered 50 barges and 30 self-propelled ships. The latter were usually screw tugs fitted out with steam or diesel engines of which the steam tugs were wood-fuelled.

Source
The report was published on www.archive.org, document number CIA-RDP80-00810A000100560005-7