The Argentine government has decided to impose a lien on Shell’s refinery after its failure to pay $20.7 million in fines for violating the country’s fuel supply laws, according to the government source.

Reuters reported that the Argentine government was considering taking the measure against the 100,000 barrel per day Shell refinery after the oil firm resisted the government’s effort to lower fuel prices. The refinery is reportedly a key producer of diesel in Argentina.

This is not the first instance the government took action against Shell for resisting its policies. Reuters noted that Shell’s Dock Sur refinery was shut down briefly in 2007 on environmental grounds.