IndianOil is India's largest national oil company, operating across the hydrocarbon value chain from refining to exploration and production. It has over 34,000 employees and annual sales of over $72 billion. Until 1991, IndianOil focused only on downstream operations, but has since diversified into petrochemicals, natural gas, LNG, and international marketing. This diversification presented human resource challenges in developing talent for new business areas, but IndianOil overcame this by equipping existing employees with new skills and hiring new talent. It has now built internal capabilities to manage its diverse portfolio.