U.S. stock index futures generally rose on Tuesday as investors' inflation concerns eased, despite the ongoing conflict in the Middle East. Dow Jones Industrial Average futures gained 22 points, S&P 500 futures rose 0.1%, and Nasdaq 100 futures advanced 0.3%. This followed Monday's decline in major stock indexes due to soaring oil prices, as hopes for reopening the Strait of Hormuz diminished, sparking concerns about disruptions to crude oil supplies through the critical waterway.