Energy is a resource which has indispensable importance for all countries. Throughout the history, countries which have their own energy resources have stand out politically and economically at the global level. In particular, the high fluctuations in prices of oil, which is one of the conventional resources and has a strategic importance, is one of the most important factors taken into consideration by the countries. Oil price fluctuations and speculative as the country with the supply and price by amount of unilateral control, industrial production is a disadvantage in terms of that of that importing countries. These improvements are directing their countries on issues such as security of energy supply, on the other hand research has lead to new energy sources can be developed as an alternative to oil. The most notable of these has been the source of shale gas. The last period of shale gas production is dominated by the view that the effect on the decline in oil prices. In the first part of this study, shale oil and shale gas which is an alternative for oil will be clarified. In the second part, after examining the reasons for the fluctuations in oil prices, its effects to the economy will be clarified