American Commercial Lines Inc. (ACL), one of the largest and most diversified inland marine transportation and service companies in the United States, announced today the appointments of Mark Knoy as President and Chief Executive Officer and David Huls as Senior Vice President and Chief Financial Officer. Industry veteran Mark Knoy, 52, is joining ACL following a seventeen year career at AEP River Operations, LLC, a subsidiary of American Electric Power Co., Inc., where he spent the last ten years serving as President. Under Mr. Knoy's leadership AEP River Operations grew to become one of the nation's largest and most successful barge lines. "Mark brings to ACL many years of profitable growth on the inland waterways," said Bryan Kelln, President of Portfolio Operations at Platinum Equity.