The origin of oil and gas affects not only the configuration of energy structure in our country even the whole world but also the position and orientation of energy in social and economic development. Since the 17th century, the debate on the organic and inorganic origins of oil has lasted about 300 similar to 400 years. Although the organic origin has been a dominant theory over the inorganic origin, the latter is flourishing constantly. Based on scholars' understanding and study over the past few hundred years, in theory, both of them have their own material basis and arguments. However, it is too early or inappropriate to deny the thesis and argument of inorganic origin of oil and gas on the basis of some facts. For instance, the trace metal elements accumulate and dissipate in the source-reservoir environments of some specific oil fields throughout the world, the porphyrin molecular cannot be found as biomarkers in some oil fields, the hydrocarbon-oxidation chemical synthesis of oil achieve some development and so forth. Obviously, it is possible for the inorganic oil to migrate and permeate into the reservoirs of oil fields under the condition that the organic oil is a dominant body. Based on the above analysis, study and exploration, we propose a new idea, i. e. the hybrid origin of oil and gas (a organic origin + b inorganic origin). We sincerely hope that this new idea can be studied and explored throughout the development of oil industry in theory, technology, experiments and practice, which will be beneficial to understanding and expanding the reservoir space of oil and gas.
