Oil and Gas reserves capacity is the core asset of the nation and also the company. It is the important material basis for the national strategic policy on the rational utilization of energy and the company’s sustainable development, as well as, an important reflection of the company's strength in the capital market. In order to control the rapid growth of the national dependence on crude oil from abroad, the domestic oil and gas industry, with the targets of guaranteeing national energy security and oriented towards increasing reserves, promoting production and reducing costs, has been paying more and more attention to the value management and comprehensive utilization of reserve assets to continuously improve its core competitiveness and status in the global oil and gas industry.