After thirty years,Shengli Oilfield has become the second largest oil base in China W with an annual production of more than 30 million tons ot oil and over 1.4 billion cubic meters of na tural gas.
文摘After thirty years,Shengli Oilfield has become the second largest oil base in China W with an annual production of more than 30 million tons ot oil and over 1.4 billion cubic meters of na tural gas.