BP Plc, Vedanta Resources Ltd, Tullow Oil Plc, EnQuest Plc, and Centrica Plc are the top 5 companies in the UK in 2021 by reserves. Collectively, the top 10 UK-based companies had reserves of 19,190 MMboe where BP Plc was the highest (17,740 MMboe), followed by Vedanta Resources Ltd (354 MMboe), and Tullow Oil Plc…