IndianOil is India�s flagship national oil company with business interests straddling the entire hydrocarbon value chain � from refining, pipeline transportation and marketing of petroleum products to exploration & production of crude oil & gas, marketing of natural gas, and petrochemicals. It is the leading Indian corporate in the Fortune 'Global 500'? listing, ranked at the 98th position in the year 2011. At IndianOil, the operations are strategically structured along business verticals - Refineries, Pipelines, Marketing, R&D Centre and Business Development � E&P, Petrochemicals and Natural Gas.