FEDERAL WAY, WA--Lumber and wood products firm Weyerhaeuser Company (NYSE:WY)  reported net earnings of $99 million for the first quarter, on net sales of $1.6 billion. This compares with a net loss of $20 million on net sales of $1.4 billion for the same period last year.

First quarter earnings  increased $33 million compared with fourth quarter, as strong export demand resulted in improved selling prices and volumes for western logs.