UK’s Cairn Energy said the first appraisal well on the Mangala oil field in northern Rajasthan has proved “successful”. In a statement, the company said: “Mangala-1ST was drilled from the N-B-1 discovery well surface location and deviated 400 metres away in an up-dip direction. The well cored 234 metres of gross Fatehgarh section and encountered…

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