New Delhi, Oct. 26 -- US Secretary of State Marco Rubio's visit to Reliance Industries' Jamnagar refinery, a coastal city in India's western state of Gujarat on the Gulf of Kutch, on 21 October has raised eyebrows in foreign policy circles. Rubio has also described India as a "refining superpower". Beyond the political reactions, it is worth examining the strategic and economic significance of this description.

Jamnagar's two refinery complexes have a combined capacity of approximately 1.4 million barrels per day and can process a wide variety of crude grades. More importantly, India has the capability to refine heavy crude, which requires more sophisticated processing to convert it into valuable fuels. This capability assumes particular...