The given bar graph demonstrate how changes in oil production in terms of hydraulical or nonhydraulical in the USA from 2000 to 2015.
Overall, we can say that the number of oil production saw a decrease nearly in the middle of the period, while after that, it witnessed a dramatic increase. Additionally, as time passed, the amount of hydraulically fractured wells rose sharply.
In 2000, about 5.5 million oil production were produced, and a majority of consist of nonhydraucalically factured wells. However, after that oil production declined sharply from 5.5 million in 2000 to approximately 4.8 million in 2008, except in 2007. (it was stable with the amount of 2006). Conversely, the amount of hydraulically factured well soaked modestly.
After the middle of period, oil production were produced with a significant increase the remainder of the period. Especially, there were a dramatic increase from about 5.2 million in 2011 to approximately 9.1 million in 2015. With regards of hydraulically fractured wells, it was followed similar trend, even the number of oil production were produced from hydraulically fractured (51%) wells more than from nonhydraulically fractured wells (49%).
