Year US Dollars Per Barrel 2008-01-01 50.4717 2009-01-01 53.7992 2010-01-01 52.6264 2011-01-01 52.8646 2012-01-01 55.3259 2013-01-01 59.3376 2014-01-01 72.1502 2015-01-01 69.7141 2016-01-01 48.8622 2017-01-01 49.0080 2018-01-01 51.7876 2019-01-01 54.2391