Year US Dollars Per Barrel 2008-01-01 49.3043 2009-01-01 55.6137 2010-01-01 58.8775 2011-01-01 68.0603 2012-01-01 77.0263 2013-01-01 87.5165 2014-01-01 94.7856 2015-01-01 84.5466 2016-01-01 73.3859 2017-01-01 74.4883 2018-01-01 76.8060 2019-01-01 76.5508