DAINIK NATION BUREAU Oil and Natural Gas Corporation Ltd (ONGC) has drilled 503 wells in 2017-18, which is the highest number of wells drilled in last 27 years. Among the 503 wells, 119 exploratory and 384 development wells were drilled. In order to assess the prospectivity of existing acreages in a time-bound manner and add to the company’s reserve base, more ...

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