ALTOONA, Pa., 2016-Aug-31 — /EPR Retail News/ — One of America's fastest growing family-owned and operated convenience store chains announces the grand opening of three new stores in Indiana, PA  Morrisville, NC,  Galax, VA, Parma, OH. On Tuesday, August 30th a new Sheetz location will open its doors in Morrisville, NC on 1019 Morrisville Parkway. On Wednesday…