Since our country joined WTO, the retail market of oil was opened in 2004, the wholesale market was opened in 2006, and the competition of oil market has become more and more fierce. Reducing the losing of oil is the critical factor to take advantage of competition and get profit.Based on the review of controlling article, the thesis first analyzed the phenomenon and the cause of the oil losing in CZ OIL COMPANY, then built a controlling system to reduce the losing, and finally evaluated the effect of the controlling system.The method of the controlling has the value for the similar oil company and the combining method of theory and practice is effective way to increase ability of managers and improve organization performance. |