Stock futures decline before Monday's session as the escalating conflict between Israel and Iran spiked oil prices and raised investors' concerns about the global economy. Dow Jones Industrial Average futures shed 184 points, or 0.4%. S&P 500 futures lost 0.4%, while Nasdaq 100 futures dropped 0.4%.

Treasury yield jumped 6.9 basis points on Friday to $4.426, reversing a dip in the immediate aftermath of the attacks.

Hedge funds took the most bullish stance on US crude since January in the week before Israel launched strikes against Iran’s nuclear program, putting them in a position to profit from this week’s jump in oil prices.

JPMorgan Chase & Co. said oil could reach $130 in a worst-case scenario. The US and Iran are scheduled to hold a sixth round of nuclear talks in Oman on Sunday.