Equinor has made an oil and gas discovery next to the giant Troll field in the North Sea and will continue to explore the area for further potential resources close to existing infrastructure. The discovery, provisionally named Ringand, is currently estimated to contain between 2 and 12 million barrels of oil equivalent and is only 10 miles (17 kilometers) west of the Troll field, Equinor said on Tuesday. “It's a small discovery, but in an interesting area that we plan to further explore with much existing infrastructure,” said Geir…