美伊紧张局势刺激油气股，山东墨龙港股走强

Group 1 - The core viewpoint of the article highlights the escalation of tensions between the U.S. and Iran, particularly following the U.S. announcement of a 25% tariff on countries trading with Iran and threats of military action [3] - The geographical significance of Iran and its critical role in the Middle East are emphasized, indicating that increased conflict with the U.S. could lead to heightened geopolitical tensions and significant volatility in oil prices [3] - Iran's control over the Strait of Hormuz, a vital route for oil transportation in the Gulf region, is noted, with the potential for supply disruptions if Iran were to block this passage due to threats from the U.S. [3]