Group 1 - Indian Oil Corp has purchased its first Colombian oil under an optional supply deal with Ecopetrol, indicating a strategic move to diversify its oil sources [1] - This deal marks a significant step for India's top refiner as it seeks to reduce reliance on traditional suppliers and explore new markets [1] - The collaboration with Ecopetrol reflects the growing importance of Latin American oil in the global market, particularly for Asian refiners [1]