Oil prices climb on short-covering, but tariff concerns linger

Oil prices rose early Tuesday as investors covered short positions after Monday's 2% drop. Brent crude climbed 0.8% to $66.77, and WTI rose 0.8% to $63.59. Gains were capped by ongoing concerns over tariffs and US monetary policy, which may curb fuel demand. Monday's decline followed progress in US-Iran nuclear talks, easing supply fears.