Mumbai, March 25 -- Crude oil futures hovered near a three-week high of $69.3 per barrel on Tuesday, supported by concerns over tighter supply after President Donald Trump threatened a 25% levy on US imports from countries buying Venezuelan oil, effective April 2. The move could disrupt crude flows to refiners in China, India, Spain, and the US, fueling market uncertainty. However, upward momentum was tempered as the administration extended Chevron's deadline to wind down its Venezuela operations until May 27. Additionally, prospects of increased Russian oil exports due to Ukraine-Russia ceasefire talks and an expected OPEC+ production hike from April weighed on the outlook. MCX April oil futures traded higher by Rs 45 at Rs 5976 per barrel...