Oil prices continued their soaring at the beginning of the trading week.
In the morning, the prices for crude oil from the North Sea and from the USA each reached highs for several years.
Oil prices have been rising for the last eight weeks, driven among other things by investors' concerns about insufficient supply before the winter months.
In the morning a barrel (159 liters) of North Sea Brent cost $ 85.80.
That was 94 cents more than on Friday.
At times the price rose to $ 86.04, the highest level in three years.
The price of a barrel of American WTI rose by $ 1.24 to $ 83.52.
Earlier this morning, the price climbed to $ 83.73, its highest level since 2014.
Meanwhile, the price of diesel has risen to a record high in Germany.
The nationwide daily average on Sunday was 1.555 euros per liter, as the ADAC announced on Monday, and thus exceeded the old high of 1.554 euros from August 2012.
While leading industrialized countries are recovering from the economic slump in the Corona crisis, concerns about a supply deficit are increasing on the oil market.
Above all, investors are looking at a shortage of natural gas, which has resulted in an increased demand for crude oil to operate power plants.
Against this background, experts do not rule out a further rise in oil prices.