Oil industry life cycle stage⦁Reasons cause oil industry experiencesdecline life cycle stageNowadays, global oil industry is experiencing decline cycle stage. From 1950 oil energy product is at the birth cycle stage. When cars, human walking replace tool is invented, human began to drive cars to go to anywhere in habit daily. Because human is often to drive cars to go to offices, or leisure places, so cars can cause gas need increases. Before, 1970, oil energy product is at the growth cycle stage, becuse cars are accepted to Western people more than Asia people only. But, after 1970, in Asia many countries, e.g. China, Japan, Singapore etc. people began to accept cars to replace catching public transport tools, so gas need had been increasing . Till to 1990. oil industy had been experiencing mature life cycle stage, because global car manufacture number had increased, global every family may have at least one car when the parent has children. So, global cars need number increases, it may be one factor to bring gas need increases. Also global travelers number increases, it will cause many airplanes need to fly to different countries frequently. So, it also bring gas need increases. Because global drivers and travelers number increases, this factor may cause gas need increases significantly because driving activities and flying activities are frequently occurence. However, nowadays oil industry is experiencing decline cycle life stage. Because COVID-19 human mouth disease influences many travelers feel fear to catch air planes when they need to sit in closed window airplanes, if one passenger has COVID 19 disease, he/she will bring other passengers to get this kind of lung disease by air contact. So, global travelers number decreases, it can influence airplanes need to fly frequently, so gas need is also influenced to reduce. Also, since electronic vehicle invention, because electronic vehicle is charged battery for its energy, so gas does not absolute need. If global many drivers have environmental protection awareness, they choose to buy electronic vehicles to replace traditional gas vehicles, then gas need must be influenced to decrease. So, these two main factors may influence global oil industry need decrease. The question is that: How gas manufacturers raise gas users need from decline life cycle stage to re-grow life cycle stage? I shall indicate the methods as below: