ENERGY

Chevron Mulling Layoffs in Texas: Chevron Corp. is considering layoffs at its Port Arthur, Tex., refinery that could eliminate up to 1,600 jobs, union officials said. The Oil, Chemical and Atomic Workers union said Chevron officials discussed two options for improving plant efficiency. One option could eliminate up to 1,600 of the plant’s 1,950 jobs, they said. The union said layoffs would cripple the Port Arthur economy. “The city hasn’t recovered from the layoffs during the 1980s,” the union representative said.