American Railcar Industries, Inc. announced that it has entered into a long-term supply agreement with GATX Corporation (GATX) to deliver a minimum of 7,650 railcars, consisting of tank and covered hopper railcars, through 2023 with a currently estimated backlog value of approximately $750 million. The agreement also includes an option for GATX to order up to an additional 4,400 railcars from ARI through 2023, subject to certain restrictions, including on quantity levels of tank and covered hopper railcars in each year.