India a ‘refining superpower’: Marco Rubio lands in Mumbai, says US to discuss processing Venezuelan crude with Reliance. US Secretary of State Marco Rubio called India a “refining superpower”, saying Washington will discuss refining more Venezuelan crude with Reliance Industries. Rubio, on a three-day India visit, is expected to meet Mukesh Ambani in Jamnagar on Wednesday, with energy and trade ties in focus.