Hamas's largest attack on Israel in decades has caused oil prices to rise. This caused unrest in the oil and gas market, and military risk became a factor that influenced global oil prices. On 9 October, oil prices rose by 5%, and on 18 October, after the situation in the Middle East deteriorated, there was another price increase. The price of benchmark Brent crude oil was $91.45 per barrel. 

According to Reuters, the price changes occurred after the tragic explosion at a hospital in Gaza, which killed hundreds of people. This caused serious outrage and concerns about possible disruptions in oil supplies from the region.

Brent crude futures rose 2%, or $1.75, to $91.65 per barrel. Futures for West Texas Intermediate (WTI) also increased by 2.2%, or $1.91, to $88.57 per barrel. Both benchmark indices rose by more than $2 in previous trading, reaching their highest level in two weeks.

According to Investing, the price of Brent crude oil was $91.45 per barrel, and the price of WTI crude oil was $87.09 per barrel on 18 October. 

At the end of October, given the escalating situation in Israel, investors expressed concern that the conflict could trigger an even greater conflict in the oil-rich region and lead to a further reduction in global supply. Some media outlets have even suggested that the price of oil could rise to $100 per barrel in the short term.