 Norsk Forurensningskontroll AS ( literally " Norwegian Pollution Control " ) or NFK was a specialized Norwegian aviation company and aircraft operator , with a fleet of four de Havilland Canada DHC @-@ 6 Twin Otter aircraft . The company was founded in 1983 and initially intended to operate the aircraft to apply dispersants on oil spills at sea , as a part of the national oil spill defense system . However , due to oil companies , <unk> and government politics the company failed to establish such a service and instead operated the aircraft for charter , before deciding to liquidate the company in the autumn of 1986 . The airline had its main base at Bodø Airport , and was planning to establish oil @-@ spill protection bases at Hammerfest Airport and Kristiansund Airport , Kvernberget . During its existence the company co @-@ operated closely with Widerøe , which was approved by the authorities as the operators maintenance organization . 
