Heilongjiang Longdragon Petroleum Corp. was founded in 1991 , headquartered in Harbin, with four entities and two branches, with three national standardized oil and seven self- service stations . Is a " refined oil wholesale qualification ", is the Northeast refined oil storage , one of the largest sales force oil companies approved by the Ministry of Commerce .

　　Heilongjiang Province, the original name of the company with the Oil Ronde , 2011 after a six-party asset integr...