University of the Incarnate Word, Lincoln University of Missouri, Rockhurst College (now Rockhurst University), St. Edwards University, St. Mary's University and Texas Wesleyan University beginning the 1999-2000 academic year. 2002 - Dallas Baptist University and Oklahoma Panhandle State University joined the Heartland in the 2002-03 academic year. 2005 - Drury and Rockhurst to join the Great Lakes Valley Conference (GLVC) after the 2004-05 academic year. 2005 - Montana State University at Billings and Western New Mexico University joined the Heartland in the 2005-06 academic year. 2006 - Western New Mexico left the Heartland to join the Rocky Mountain Athletic Conference (RMAC) after the 2005-06 academic year. 2006 - Newman University, the University of Texas of the Permian Basin (Texas–Permian Basin or UTPB) and Texas A&M International University (TAMIU) 2007 - Montana State–Billings left the Heartland to join the Great Northwest Athletic Conference (GNAC) after the 2006-07 academic year. 2009 - The University of Arkansas at Fort Smith (Arkansas–Fort Smith or UAFS) joined the Heartland in the 2009-10 academic year. 2010 - Two institutions left the Heartland to join their respective new home primary conferences: Incarnate Word (UIW) to the Lone Star Conference (LSC), and Lincoln (Mo.) to return to the Mid-America Intercollegiate Athletics Association (MIAA), both effective after the 2009-10 academic year. 2012 - McMurry University and Oklahoma Christian University joined the Heartland in the 2012-13 academic year. 2013 - Lubbock Christian University and Rogers State University joined the Heartland in the 2013-14 academic year. 2016 - Texas–Permian Basin (UTPB) left the Heartland to join the Lone Starly after the 2015-16 academic year. However, it would remain in the Heartland as an affiliate member for men's soccer beginning the 2016 fall season (2016-17 academic year). 2016 - Eastern New Mexico University, Midwestern State University and West Texas A&M University joined the Heartland as affiliate member for men's soccer in the 2016 fall season (2016-17 academic year). 2019 - The Heartland ceased operations as an athletic conference after the 2018-19 academic year; as many schools left to join their respective new home primary conferences beginning the 2019-20 academic year: Arkansas–Fort Smith (UAFS), Dallas Baptist, Lubbock Christian, Oklahoma Christian, St. Edward's (Tex.), St. Mary's (Tex.) and Texas A&M International (TAMIU) joined the Lone Star to renew their rivalries with Texas–Permian Basin and Western New Mexico; while Newman (Ks.) and Rogers State joined the MIAA to renew their rivalries with Lincoln (Mo.); and