SALEM — Oregon's largest biodiesel plant will rehire workers after it closed down a month ago.

SALEM — Oregon's largest biodiesel plant will rehire workers after it closed down a month ago.

SeQuential Pacific Biodiesel in Salem was built to produce 5.8 million gallons per year. But owners could not run the plant at capacity because of a lack of buyers, and had to store 250,000 gallons in early spring until it could find markets.

The Statesman Journal newspaper said that with warmer weather customers are buying fuel blends with a higher biodiesel content, blends that can gel in cold weather.

Portland's Water Bureau fleet moved from a 20 percent biodiesel blend to a 99 percent biodiesel blend April 15. In addition, a biodiesel plant in Washington state closed.

The company converts used vegetable oil it gets from restaurants into fuel.