Crude oil imports in China are mainly carried out by state-owned entities with non state-owned entities as compliment. Crude imported by 5 state-owned entities accounts for 90% of the total imports, while non state-owned entities are about given more freedom in using and importing crude. In 2015 only, there were 13 companies granted with access to imported crude oil and 6 were qualified to import rights. Currently, there are 29 non-state-owned companies engaging in crude import business. China oil market is faced with severe challenges. The growth rate of oil demand declined, and dependence upon imported oil increased and reached as high as 61.26% in 2015. Refined oil demand growth also slowed down, and oil refining overcapacity got prominent and completion would become fiercer in future. Overcapacity was about 140 million tons per year in 2015. Consumption ratio of diesel to gasoline went on declining, and the task of product structure adjustment was heavy. China oil market is undergoing great transformation, and institutional mechanism will go ahead, on the basis of centering on orderly release of limitations on crude oil and refined oil import and export, orderly release of competitive business and government pricing of oil/gas downstream links, vigorous resolving of overcapacity, strengthening low-carbon development, and laying a solid foundation for guarantee.

As oil and gas development gets more difficult, the market competition in engineering technology services tends to be fiercer. CNPC mud logging business is facing double challenges from technology and market. We analyzed both external and internal environment for CNPC logging business development, made clear the opportunities and challenges, gained insights into the existing problems, and proposed countermeasures from the aspects of management system, service mode, profitability, techniques and equipment, market expansion, and personnel training.

China has proposed the "Belt and Road Initiative (B&R)" in 2013. One of its core strategies is international oil/gas cooperation. This paper addresses the status quo of cooperation on oil/gas infrastructure with countries along the line of "B&R", anticipates the cooperation prospect. On this basis, the author analyzes China's advantages and cooperation basis in this domain, conceives the practical way of cooperation on oil/gas infrastructure with countries along the line of "B&R". This paper also elaborates on the potential risks, risk evaluation criteria and risk control in oil/gas infrastructure cooperation with countries along the line of "B&R".

Not only being abundant in resources, natural gas also helps power grids consume wind energy, solar energy and etc. The promotion of natural gas is an essential way to facilitate the development of new energy and complete the transition to an energy system where the renewable energy is dominant. The operation of energy Internet with a concept of equal, open, cooperative and sharing, and the optimization of a combined energy of gas, electricity, heating and cooling, could significantly improve the energy efficiency. Meanwhile, the development of energy Internet technology will subvert the existing division of energy industry, and generate new commercial formats with features of highly openness. It will also subvert some existing market rules, change the governance methods, generate renovations in organizations, business models and government management methods, thus requires further revolution in energy industry. In order to promote the rapid and healthy development of "Internet plus" natural gas industry, a series of policies and precautions are needed to be introduced and improved.

Economy growth in China is expected to slow down a little during the 13th Five-Year-Plan period. So will the domestic gas demand and supply market, which may be quite different from that of the 11th and 12th Five-Year-Plan periods. The paper summarized the state quo of gas supply and demand in the country and analyzed factors that may affect the demand and supply balance in the new period. It is proposed that there will be many uncertainties in achieving supply and demand goals of gas set for the period, and gas glut is also very possible during the time. To deal with the problem, it is suggested that several measures be taken nationwide:improving utilization of gas in several sectors, straightening and optimizing the pricing mechanism, speeding up construction of infrastructures, implementing relevant policies and boosting up supervision and monitor of the industry.

There is a bright future for cooperation in oil & gas development in China. Total and other French companies strengthen communication and cooperation with Chinese partners to develop oil & gas in China as well as in other countries. Chinese and French companies continue to benefit from cooperation in petroleum upstream industry, gas industry as well as in other fields.