In Dire Straits? Implications of US-Iran Tensions for the Global Oil Market

DESCRIPTION: In recent months, Iran has responded to rising tensions with the United States—particularly the US launch of the “maximum pressure” campaign against Iran—by attacking oil tankers and infrastructure in the Persian Gulf region around the Strait of Hormuz (the Strait). These actions have been designed to signal to the United States, the Gulf states, and the international community that the American strategy of strangling Iran economically will not be cost-free, and to Saudi Arabia in particular that it is highly vulnerable to Iranian retaliation.

As the Strait of Hormuz is one of the world’s most critical energy chokepoints, the implications of Iran’s efforts merit close scrutiny and analysis. This study was designed to examine three scenarios for military conflict between Iran and the United States and assess the potential impacts on global oil prices—as one specific representation of the immediate economic impact of conflict—as well as broader strategic implications. The three scenarios are:

1. Increasing US-Iran tensions that ultimately lead to a new “Tanker War” scenario similar to the conflict of the 1980s, in which Iran attacks potentially hundreds of ships in the Persian Gulf and Gulf of Oman over a prolonged period while also launching missiles at Gulf oil infrastructure.

2. An escalation of tensions between Iran and the United States in which Iran significantly increases the scope and severity of missile attacks directed at major oil and energy infrastructure in Saudi Arabia and the UAE.

3. A major conflict between Iran and the United States that includes damage to Gulf oil infrastructure and a temporary closure of the Strait of Hormuz.