NEW YORK, June 7 (Reuters) - Brent crude extended gains to more than $1 and U.S. crude futures briefly turned higher in choppy trading on Tuesday as the weaker dollar and Middle East turmoil lifted Brent, offsetting expected production hikes from Saudi Arabia and OPEC.
Traders and brokers also said oil was getting a boost from an expected higher open on Wall Street, with stocks expected to rebound after its recent slide.
ICE Brent July crude
On the New York Mercantile Exchange, July crude