Marketwatch Reliance, Aramco Call Off $15 Billion Deal On Valuation Differences: Report Admin November 25, 2021 Aramco, the world’s top oil exporter, signed a non-binding agreement to buy a 20 per cent stake in Reliance’s O2C business for $15 billion in 2019. NDTV Profit – Latest Share on Facebook Tweet it Pin it Share it Email