Year US Dollars Per Barrel 2008-01-01 75.8327 2009-01-01 80.0990 2010-01-01 83.7640 2011-01-01 108.3599 2012-01-01 122.8473 2013-01-01 108.1357 2014-01-01 135.3273 2015-01-01 106.8257 2016-01-01 102.5065 2017-01-01 86.7499 2018-01-01 105.6746 2019-01-01 84.3398