Royal Dutch Shell ( RDSa.L ) agreed to buy smaller rival BG Group ( BG.L ) for $70 billion in the first oil super-merger in more than a decade to close the gap with the world’s largest oil firm U.S. ExxonMobil ( XOM.N ). In a joint statement, the two firms said Shell would pay a mix of cash and shares that would value each BG share at around 1,350 pence ($20). It said this represented a premium of around 52 percent to the 90-day trading average. Britain’s BG had a market capitalisation of $46 billion as of Tuesday close, Shell was worth $202 billion while Exxon, the world’s largest oil company by market value, was worth $360 billion. “We have two very strong portfolios combining globally in deep water and integrated gas,” Shell’s CEO Ben van Beurden told a news conference. The deal would give Anglo-Dutch […]