The story
Belorusneft is a production company and was established in 1966. In 1980s, Belorusneft engineers and drillers were active in the exploration of the West Siberian petroleum basin in Russian SFSR. In 1986, 5729 workers of Belorusneft worked in Siberia (38.9% of overall number of workers of the organization). After the dissolution of the Soviet Union, the cooperation between Belarusian Belorusneft and Russian government continued.
From Wikipedia’s article on Belorusneft, shared under CC BY-SA 4.0.4