Year US Dollars Per Barrel 2004-01-01 49.7991 2005-01-01 36.3914 2006-01-01 53.0589 2007-01-01 69.9139 2008-01-01 67.9489 2009-01-01 75.1257 2010-01-01 72.7644 2011-01-01 79.4599 2012-01-01 98.9206 2013-01-01 100.4332 2014-01-01 89.7223 2015-01-01 54.9757 2016-01-01 46.0479 2017-01-01 46.9489 2018-01-01 55.4162 2019-01-01 54.2166