oil has been used in one form or another over thousands of years but it has become really important to our economy in the lash 2 centuries. it has been the most important source of energy since the end of world war ll.
The first oil well was created in the middle of the 19th century in pennsylvania. by 1870 oil production had spread to other american states. during the latter part of the 19th century oil was also produced in canada nad in european countries.