On March 27, 2013, the Ministry of Land and Resources held a news conference to announce a significant achievement in Chinese geological prospecting work in 2012. According to government/industry statistics, proved reserves of oil and natural gas have increase substantially in 2012. Newly proven national petroleum geological reserves are 15.2 million tons, a year-on-year growth of 13%, which is the tenth time of more than 1 billion tons since On March 27, 2013, the Ministry of Land and Resources held a news conference to announce a significant achievement in Chinese geological prospecting work in 2012. According to government / industry statistics, confir reserves of oil and natural gas have increased substantially in 2012. Newly proven national petroleum geological reserves are 15.2 million tons, a year-on-year growth of 13%, which is the tenth time of more than 1 billion tons since