EUGENE, Ore. (AP) — A California forest products company has bought Seneca, a Eugene, Oregon-based company that had owned more than 100,000 acres of land in southwestern Oregon.

The News-Review reports Sierra Pacific Industries announced last week it had completed the acquisition. The combination of the two companies means Sierra Pacific Industries will have than 2.3 million acres of timberlands, 18 sawmills and eight renewable biomass energy cogeneration facilities, along with millwork and windows operations.

“This is a meaningful day for Sierra Pacific Industries, as well as for Seneca,” Sierra Pacific President George Emmerson said in a statement. “The combined company brings together an outstanding team of people that will leverage our shared expertise in sustainable forest management and innovation in manufacturing, working together to provide quality lumber and wood products to the marketplace.”

Sierra Pacific Industries is based in Anderson, California. It owns and manages timberland in California, Oregon and Washington and is one of the largest U.S. lumber manufacturers.

The company also produces millwork, windows and renewable energy.

Seneca was founded in Eugene in 1953. Seneca owned 131,000 acres of land in Douglas County.