... scheduled maintenance work at several oil refineries ( refineries ) in June and July. The situation was further exacerbated by the behavior of certain large producers: as established by the Federal Antimonopoly Service (FAS), some oil companies significantly ... ... imposed until August 31 inclusively, but authorities do not rule out extending the restriction into September if necessary. Financial Dampening and Trade Control. Monitoring of petroleum product trading has increased; the government is utilizing the ...