HOUSTON, March 30 (Reuters) - Union workers at Exxon Mobil's XOM.N refining and chemical plant complex in Baton Rouge, Louisiana, ratified a new four-year contract on Friday, sources familiar with plant operations said.
An Exxon spokesperson had no immediate comment on Monday.
The contract was approved by 91% of the nearly 1,000 workers, said the sources, who requested anonymity because they were not authorized to speak publicly about the vote.
The contract provides a 4% pay increase in the first and fourth years and a 3.5% increase in the second and third years and was negotiated between Marathon Petroleum MPC.N and the United Steelworkers union (USW).
The workers at the Baton Rouge refinery and chemical plant are represented by USW Local 13-12.