2 Min Read HOUSTON (Reuters) -The United Steelworkers union (USW) called on Exxon Mobil Corp to continue negotiations for a new Beaumont, Texas, refinery contract despite the company’s threat to lock out workers on May 1 if there is no agreement. FILE PHOTO: An Exxon sign is seen at a gas station in the Chicago suburb of Norridge, Illinois, U.S., October 27, 2016. REUTERS/Jim Young “These negotiations are not about wages,” said Darrell Kyle, president of USW Local 13-243, which represents 650 workers at the 369,024 barrel-per-day (bpd) Beaumont refinery and adjoining blending and packaging plant. “Our greatest concern is making sure our lives and our jobs are safe and secure,” Kyle said in a statement issued by the union.