Following the results of the last week, Brent crude oil fell by 1.5%, WTI - by 2.7%. The seven-week drop for WTI is the longest period of decline since 2015. Brent is losing in price for the third consecutive week. On Friday, oil prices rose on expectations of a resumption of strikes on Total fields developed in the North Sea. October futures for Brent crude on Friday went up by 30 cents to 71 dollars 73 cents per barrel. The price of September futures for WTI crude oil rose by 37 cents to 65 dollars 83 cents per barrel. The trade union of workers of oil and gas industry has announced the staging of another strike at three Total deposits in the North Sea.