The United Steelworkers union, representing 30,000 oil workers in contract talks, will resume negotiations next week with Royal Dutch Shell Plc, prolonging the biggest refinery strike in 35 years. Shell, negotiating on behalf of employers including Exxon Mobil Corp. and Chevron Corp., and the USW have agreed to meet on March 4, statements from both sides show. The union, which is trying to limit the number of contractors at plants, said in a text message on Friday that Shell will need to bargain a fair and safe contract “or see strike expand.” The meeting will be the first official one since Feb. 20, when talks between the two sides broke down and the union spread its strike to include the nation’s largest refinery. The stalled negotiations have drawn out a national walkout that began Feb. 1 at seven refineries and has since widened to include 12. Together, […]