On February 1, 3,800 workers walked out of 9 oil producing facilities in the US. In the past three weeks, the strike has spread to 6 additional plants, including the Motiva Enterprises refinery in Port Arthur, Texas, which has a crude capacity of 600,000 barrels a day, the largest of its kind in the country. The strike now involves 6,550 workers, at plants accounting for 20% of the country’s refining capacity. This is the largest walkout since 1980, and there is the possibility of it spreading to more workplaces.