论述了中国石油勘探、开发和石油工业发展的客观历程，以翔实的史料指出，李四光对中国石油的大发现做出了不可替代的重要贡献。

The article reviewed the objective experience of petroleum prospecting and exploitation and the development of oil industry in China. It pointed out, with full historical materials, that Li Siguang made irreplaceable contribution to China's big discovery of petroleum.