(Reuters) - Chevron said on Monday it expects upstream turnarounds and downtime to impact 65,000 barrels of oil equivalent per day in production in the second quarter mostly at Tengizchevroil (TCO) in Kazakhstan and several Gulf of Mexico assets.

The U.S. oil major said it expects downstream turnarounds to impact earnings by $300 million to $400 million mainly due to maintenance at the El Segundo and Richmond refineries in California.