U.S. Stock market futures were up in pre-market as Wall Street investors expect a positive start in June. S&P futures rose 0.13 per cent, Dow futures climbed 0.06 per cent, and Nasdaq futures jumped 0.25 per cent.S&P 500, Dow Jones, NasdaqU.S. stocks followed world shares higher and crude prices retreated on Friday as investors neared the end of a holiday-shortened week with renewed hopes of progress toward a peaceful resolution to the Iran war. MSCI's gauge of stocks across the globe rose 5.75 points, or 0.51 per cent, to 1,130.47.Wall Street's main indexes hit record closing highs on Friday and posted weekly and monthly gains as Dell ​results drove tech shares higher, while investors awaited details on a potential U.S.-Iran deal. The Dow Jones Industrial Average rose 363.37 points, or 0.72 per cent, to 51,032.34, the S&P 500 gained 16.44 points, or 0.22 per cent, to 7,580.07 and the Nasdaq Composite gained 55.15 points, or 0.21 per cent, to 26,972.62.Oil PricesOil prices rose more than 2 per cent in early trading after Israel ordered troops ​to move further into Lebanon in the battle with the Iranian-backed Hezbollah ​militant group, despite a ceasefire announced more than six weeks ago. U.S. crude futures rose $2.17 or 2.48 per cent to $89.53 a barrel. Brent futures rose $1.93 or 2.12 per cent to $93.05 a barrel.The stepped-up fighting, coming just after ‌the U.S. hosted Israeli-Lebanon ⁠peace ⁠talks in Washington on Friday, dimmed expectations that the U.S. and Iran could soon announce an extension to their ceasefire ​agreement, which had driven Brent and WTI to settle up 1.8 per cent and 1.7 per cent, respectively, on Friday.Iran WarThe Israel-Lebanon ​conflict has been the broadest spillover of the Iran war. It started on March 2 when Hezbollah began firing rockets and drones across the border into Israel to back its ally Iran. The ​two sides reached a ceasefire in mid-April but have continued to ⁠trade fire.An Axios reporter said on X ​on Friday that ​Iran had dropped more mines ⁠in the strait earlier in the week, shortly after U.S. Defense Secretary Pete Hegseth said that attempts to lay more mines would be a violation of the ceasefire.Hormuz is a conduit ​for about a fifth of global oil and gas flows and Iran has effectively closed it since the conflict began with U.S. and Israeli strikes in February.US DollarThe dollar slipped against major currencies on Friday and was headed for a second straight weekly loss after reports that the United ​States and Iran had reached an agreement to extend their ceasefire and ease restrictions on shipping through the Strait of Hormuz. The dollar index, which measures the greenback against a basket of currencies, was flat ⁠at 98.92, on ‌track to notch a weekly loss.