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Knutsen Oas Shipping AS

Address: Smedasundet 40, 5529 HAUGESUND
Phone: +47 52704000
Web: www.knutsenoas.com

Advanced shipping technology & innovative solutions


Knutsen OAS Shipping

Knutsen OAS Shipping AS is a fully integrated shipping company. We do shipping operation, newbuilding supervision, chartering and project development in-house. The head quarter is in Haugesund, Norway.



Knutsen OAS have focused on the following segments:

- LNG carriers

- Shuttle tankers (KNOT)

- Products carriers

- Technology

We operate 11 advanced LNG carriers, of which 10 are on long-term fixed contracts. The large vessels have long sailing voyages across the Atlantic or the Pacific Ocean. Knutsen also operate the smallest LNG carrier in the world along on the Norwegian coast..

The Product tanker fleet are operated from our Haugesund office. These vessels are on spot or timecharter contracts and trading across the world and along the Norwegian coast.

The shuttle tanker fleet has since 2010 been operated and owned by the Knutsen NYK Offshore Tanker (KNOT). This is a 50/50 joint venture between Knutsen OAS and NYK (Nippon Yuse Kaisha). www.knutsenoffshoretankers.com



The company’s strong focus on technology development. This has resulted in its own proprietary technology for VOC reduction (KVOC), ballast water treatment (KBAL) and transport of pressurized natural gas (PNG).  


KVOC technology is a prevention method that will reduce VOC generation during loading by elimination of flash in the loading system. More than 40 vessels have this technology in operation today.


KBAL is a simple and user friendly ballast water treatment system. Due to the highly effective and compact pressure vacuum reactor, the system does not need any filters nor chemicals, hence a 

minimal foot print is ensured. The pressure vacuum reactor working in combination with a vertical ballast water drop line, ensures a sudden pressure reduction from 2 bar down to a pressure marginally above a perfect vacuum. This sudden pressure reduction eliminates, i.e. pulverizes the majority of the organisms. Remaining algae and bacteria are effectively eliminated by the UV chamber mounted downstream on the pressure vacuum reactor. The system has been installed on 11 vessels and retrofitted to 1 vessel. KBAL has been extensively tested. The biggest shipboard test ever performed on a ship was carried out on M/T Ingrid Knutsen at a capacity of 3000 m3/hr through a single KBAL unit as illustrated on the picture.  


PNG is a transport solution for marine transport of natural gas. The technology has been developed by Knutsen OAS Shipping in close cooperation with German pipe manufacturer Europipe GMBH. The solution has passed all the qualification requirements stipulated by the classification society DNV-GL approved as ready for implementation. PNG can open for new transport alternatives and is particularly suitable for offshore loading for direct transport to the market.