Sources: IHS data for Illinois Basin oil production
1) The 117,163 total barrels for 2012 has one Midwest Kansas well added in. The Kansas well is approximately 1,784 barrels of that amount .
2) The 144,939 total barrels for 2013 has two Midwest Kansas wells added in. The Kansas wells are approximately 4,724 barrels of that amount.
3) The 180,603 total barrels for 2014 has three Midwest Kansas wells added in. The Kansas wells are approximately 2,433 barrels of that amount.