Research on the security of China's oil resources supply based on the objective weight method

With the rapid development of China's economy, external dependence on petroleum resources continues to increase, and their security has become an important part of national security. To evaluate the security of China's petroleum resource supply in a scientific and objective manner, this study establishes a corresponding petroleum life-cycle evaluation index system, based on the theory and method of the whole life-cycle security evaluation of mineral resources, and conducts further independence and grey correlation analysis on the indexes for the purpose of evaluating the petroleum risk situation in China, based on relevant public data from the past 10 years. The results show that the overall trend of China's oil risk has a “U”-shaped characteristic of first decreasing and then increasing. Furthermore, the analysis finds that China's mineral resources have been greatly influenced by the domestic production situation and international trade. These results suggest that the security of petroleum supply can be improved by safeguarding international trade in petroleum resources, strengthening the strategic reserves of domestic petroleum resources, and developing new alternative clean energy sources to improve the resilience of petroleum supply security. This study's research methodology is more logical and systematic than traditional methods, and the analysis of the factors is comprehensive and of high application value, providing implications for the establishment of a big data analysis and evaluation index system for oil resource security.