Oil prices are flip-flopping, and the U.S. stock market is holding relatively steady following the United States’ bunker-busting entry into Israel’s war with Iran. Oil jumped as much as 4% shortly after trading began on Sunday night, but it quickly pared most of the gain by Monday morning. The S&P 500 edged down by 0.1%. The Dow Jones Industrial Average dipped 37 points, and the Nasdaq composite fell 0.4%. Markets calmed amid hopes that Iran will not retaliate in a way that disrupts the global flow of crude, which would hurt economies worldwide but also its own.