Oil prices rallied for a third day on Tuesday as major producers Saudi Arabia and the United Arab Emirates looked unlikely to be able to boost output significantly, while political unrest in Libya and Ecuador added to supply concerns. U.S. West Texas Intermediate (WTI) crude futures rose $1.8, or 1.6%, to $111.36 a barrel by 0644 GMT, extending a 1.8% gain in the previous session. Brent crude futures climbed $1.9, or 1.7%, to $116.99, adding to a 1.7% rise in the previous session. The UAE and Saudi Arabia have been seen as the only two countries in the Organization of the Petroleum Exporting Countries (OPEC) with spare capacity available to make up for lost Russian supply and weak […]