Oil prices rose today to their highest price yet this year on expectations of tighter supply. “The market is getting increasingly nervous about the sufficiency of supply,” said John Kilduff, partner at Again Capital. “Russia and Saudi are acting in a way that could materially constrain supplies as we get into the peak northern hemisphere demand season, for the winter period,” Kilduff added. Hedge funds have been buying crude oil futures for the past two or three weeks as “fundamentals continue to get stronger, driven mostly by heavy demand for both gasoline and diesel. WTI traded up $1.64 or 1.85% to close at $90.16. Brent traded up $1.82 or 1.98% to close at $93.70.