What Determines Oil Prices?
An excellent site
gives an in-depth analysis of what determines oil prices.
The current price of oil is constantly changing, and you can view the barrel price at https://oilprice.com/
Brent Crude is the relevant commodity applying to our market.
The oil trade is in US$ (United States Dollar), so the exchange rate for $US to £UK comes into effect.
This exchange rate is constantly changing, and you can view it at https://www.x-rates.com/graph/?
When the £ is high, oil prices for us are lower.