Oil companies led by Marathon Petroleum (MPC.N) and the United Steelworkers (USW) agreed to a new national contract on Friday for 30,000 U.S. workers in refineries, chemical plants, and pipelines, the company and the union said. Once the deal is ratified, workers will receive a 12% pay increase over its four-year term, said three sources familiar with the matter. “We’re pleased to have reached a mutually satisfactory four-year pattern labor agreement with the United Steelworkers,” Marathon spokesman Jamal Kheiry said. USW International President Thomas Conway said in a statement that membership played a key role. “The industry came to the table with demands that would have undermined generations of collective bargaining progress,” Conway said. “Thanks to the solidarity of the membership and the hard work of our […]