By Georgina McCartney and Siddharth Cavale HOUSTON/New York, March 18 (Reuters) - The discount for U.S. crude futures versus Brent on Wednesday hit the widest in 11 years, as attacks on Middle Eastern oil infrastructure drove the global benchmark higher while rising supply in the U.

Stock markets plunged and oil prices surpassed $100 per barrel today amid the US war in Iran. How high will crude oil get? See the latest predictions.

Why is oil price down by 7% now, and will Brent crude futures go below $91.71 or rise again soon? Oil markets dropped after U.S. President Donald Trump said the Middle East war could end soon. Brent crude futures fell to $91.

Crude oil futures traded lower on Friday morning after the US said it may soon remove sanctions on Iranian oil stranded on tankers at sea.

Stock futures tumbled after hours on Wednesday, building on earlier losses for the S&P 500 and Dow Jones Industrial Average, as crude-oil prices pressed higher.

Stock futures pointed lower Thursday as oil prices jumped on the latest Middle East developments, with global benchmark Brent crude futures soaring to $115 a barrel.

Oil prices resumed their advance Friday, with Brent crude futures rising as high as $111 a barrel before falling back below $110. Ongoing damage to oil-and-gas infrastructure in the Persian Gulf this week has stoked anxieties among investors about a full-blown energy crisis,

The US stock market is expected to open flat as tensions in the Middle East rise and oil prices near $120 per barrel. The Dow Jones fell significantly in the previous session, with inflation forecasts revised upward due to the US-Iran conflict.