Bigger, better and more energy efficient, two new Express Mart stores wow customers. By Erin Rigik, Associate Editor. Express Mart is living up to its name, rapidly increasing its store count and expanding the size of its store footprint to outpace the competition.In just the first two months of 2012, Home Service Oil debuted two…

At 6,500 square feet, the new Hillsboro location is considered one of the largest c-stores in Jefferson County. Home Service Oil Co., which operates Express Mart convenience stores in and around Jefferson County, Mo., just south of St. Louis, has recently opened two newly-built Express Marts that are enormous in size. Their new Hillsboro location…