A sustained surge in oil prices is likely to complicate the U.S. fight against inflation. A $10-a-barrel increase would boost year-over-year growth in the Consumer Price Index by 0.5 percentage points,

"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.

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.

Oil prices leaped, and stocks slumped on worries that escalating violence following Israel’s attack on Iranian nuclear and military targets could damage the flow of crude around the world, along with the global economy.

The Federal Reserve is widely expected to hold interest rates steady next week, with investors focused on new central bank projections that will show how much weight policymakers are putting on recent soft data and how much risk they attach to unresolved trade and budget issues and an intensifying conflict in the Middle East.

Ukrainian President Volodymyr Zelenskyy says rising global oil prices following Israeli strikes on Iran will strengthen Russia by increasing its oil revenues, aiding its war effort in Ukraine