Where were huge oil reserves discovered in the 1970's?

In the 1970s, significant oil reserves were discovered in several locations, notably in the North Sea, particularly in the UK sector, which became a major oil-producing region. Additionally, large oil fields were found in Alaska, including the Prudhoe Bay Oil Field, which is one of the largest in the United States. These discoveries contributed to a dramatic increase in oil production and impacted global energy markets.