Oil prices edged higher for a second consecutive session on Tuesday, as worries about political instability in Russia and potential supply disruptions counter-balanced concerns about global demand.
Brent crude futures rose 6 cents to $74.24 a barrel, while U.S. West Texas Intermediate (WTI) futures gained 10 cents to $69.47 a barrel. On Monday, Brent had climbed 0.5% and the WTI 0.3%.