The line chart illustrates the amount of production fuel in the UK from 1981 to 2000. Overall, both petroleum and natural gas increased steadily, and petroleum was the highest in the last period. In contrast, coal declined over the period and reached a low of level in 2000.
According to the graph, petroleum began at around 90 million tons in 1981. It grew gradually to 140 million after 5-year in 1986 and decreased slowly to 100 million in 1991. Natural gas stayed stable at 40 million tons over a decade from about 1983 until 1991. Meanwhile, coal stood at 80 million, and it was the largest source of energy compared to natural gas in the first period. Between 1986 and 1991, this figure dropped steadily each 60 and about 50 million.
However, throughout the period 1996 and 2000, production of petroleum and natural gas went up slowly, respectively approximately 140 and 80 million in 1996 as well as natural gas peaked at 100 million tons in 2000 and petroleum stable at 140 million. Subsequently, coal fell gradually to about 39 million in 1996 and 30 million in the end period. It was the lowest production fuel In the UK in the final period.