Natural gas, played vital role as main energy source to the rapid development of Bangladesh, production and consumption has been increased drastically during last decades. Geological and geophysical explorations have identified significant quantities of natural gas Recent DLL reserves in Bangladesh. Proper reservoir characterization is very in important estimating the actual amount of gas reserve. Fortunately, there are 27 gas fields in Bangladesh till now. it is projected that the country would be able to fulfill the growing demand of natural gas for the next 10-12 years with the remaining gas reserve. It is therefore an urgent need to increase the amount of gas reserve. To discover a new gas field would contribute significantly to the total gas reserve but it is time taking and cumbersome. An alternative and effective way is to the development of existing gas fields to increase the gas reserve termed as "reserve growth". It is evident that reassessment of reservoir properties with latest techniques would increase the amount of gas reserve significantly. The relationship between energy and growth is one of the important topics in economic research. Natural gas is the most usable form of energy. Gas being the primary source of energy, the first concern for Bangladesh is to ensure sustainable gas supply for a long time. One of the most important prospects on increasing the supply of natural gas is to enhance drilling both onshore and offshore. So discovering new gas fields should be prioritized. Also a long-term strategic plan is required for carrying out systematic exploration and proper appraisal of discoveries of gas fields. Even if Bangladesh government is successful in finding consistent supply of gas for a long time, utilization in different gas consuming sector is a must. Bangladesh desperately needs to increase energy utilization to foster economic growth and increase its per capita commercial energy level. The government is bound to monitor the utilization of gas in important sectors like power generation, fertilizer industry, captive power generation, and household consumption and CNG sector. But it is not only government's duty; the consumers must also make sure that efficient consumption is taking place. Wastage in energy means less energy in times of need.