(Bloomberg) -- Oil posted a weekly advance, bolstered by output disruptions in Libya and increased tensions in the Middle East. Most Read from BloombergWest Texas Intermediate rallied near $74 a barrel, posting a 3% weekly gain. Crude’s gain this week comes despite analysts turning more pessimistic on the market. Wall Street already is cutting price forecasts for this year after global benchmark Brent dropped by almost a fifth last quarter. Most Read from Bloomberg Businessweek©2024 Bloomberg L.P.