The first oil well in the United States was drilled in Titusville, Pennsylvania, in 1859.[1] It began yielding 25 barrels a day; by the end of 1859 the flow had slowed to 10 barrels a day. The world would never be the same - by 1906, American oil production had reached 126 million barrels a year.
Today petroleum constitutes 40% of Americans’ overall energy consumption in the United States, with coal being the other big source of energy.