Oil drops below $80 a barrel for first time since early March as US stocks trade mixed

International oil prices fell again on Tuesday, slipping below $80 per barrel for the first time since early March, the lowest level since then. U.S. stocks were mixed, with the Dow up 0.8%, the Nasdaq down 0.7% and the S&P 500 off 0.4%. The summary did not cite specific drivers, but said the broader context suggested easing geopolitical tensions or softer demand expectations weighed on crude prices.