"A sustained $10 increase in oil prices is expected to increase inflation by 0.4% and lower GDP by 0.4%": Apollo Global Management 's ( APO -4.34%) chief economist Torston Slok says oil is fueling U.S. stagflation fears, adding to the effect expected from import tariffs.

That sent the yield on the 10-year Treasury up to 4.43% from 4.36% late Thursday. Higher yields can tug down on prices for stocks and other investments, while making it more expensive for U.S. companies and households to borrow money.

Stock futures were mixed on Sunday as investors weighed the impact of the escalating Israel-Iran conflict that shows no signs of any potential off-ramps ahead. Oil prices jumped after Israel attack key areas of Iran’s energy infrastructure over the weekend,

Ansid Capital's Anurag Singh predicts stable oil prices between $60 and $90 for the next four years. He believes the US administration will maintain oil flow. Singh also addresses market concerns regarding geopolitical tensions.

A sustained rise in the price of crude oil, which jumped sharply after Israel attacked Iran, could hurt consumers and President Trump’s efforts to bring down energy costs.

That’s the end of the cheapest petrol prices in the UK for four years” – Tony Redondo, Cosmos Currency Exchange

Israel’s attacks on Iran’s nuclear facilities risk pushing back the timeline for Federal Reserve interest-rate cuts as the US central bank waits to assess any potential impact on inflation, economists said.

Oil prices are rising and stocks are falling on worries that Israel's attack on Iranian nuclear sites could damage flow of crude around the world.