By Bob DowningBeacon Journal staff writerOhio’s Utica Shale industry continues to grow, despite low commodity prices, according to a new report by a Columbus-based law firm that has been tracking the industry.The investment in shale projects in eastern Ohio now tops $28 billion, a 40 percent increase in total investments since last fall, says Monday’s report from Bricker & Eckler LLP.The report lists 148 projects, 15 new since last fall.One of the local beneficiaries is Blair Rubber Co.