AI_CATEGORY YEAR LBS_AI ACRES OIL 2001 23075879 2327193 OIL 2002 25846804 2442222 OIL 2003 27154392 2831247 OIL 2004 29001624 3081268 OIL 2005 29356548 3088253 OIL 2006 33412097 3566670 OIL 2007 28899567 3485364 OIL 2008 28932093 3625914 OIL 2009 27359217 3634399 OIL 2010 27452118 3949893 OIL 2011 31711286 4354418 OIL 2012 28541419 4105356 OIL 2013 35954488 4641641 OIL 2014 30264973 4553507 OIL 2015 41691506 4850467 OIL 2016 38527252 5190339 OIL 2017 37424120 5325409 OIL 2018 40047430 5495278 OIL 2019 40515925 5552376 OIL 2020 44149008 5639693