Most oil fields are formed at the bottom of stagnant waters (Siberia, Middle East, North Sea); there are 1500 of them, of which 600 are large, 125 very large, 40 enormous (they make up 50% of the world’s reserves and 26 are in the Persian Gulf). Post navigation Previous Article Previous Article 150,000,000 BC Next Article Next Article 150,000,000 BC
