State-run oil giant PetroChina will shut the last remaining crude processing unit at its biggest refinery in northern China within weeks, industry sources told Reuters on Wednesday. Dalian Petrochemical, PetroChina’s 410,000-barrels-per-day refinery in downtown Dalian, north China, has been shutting processing units since the end of 2023. Now the last remaining crude unit, with a capacity of 200,000 bpd, will be switched off on June 30, according to Reuters’s sources. Dalian Petrochemical accounts for almost 3% of the total Chinese…