Iran Conflict Disrupts Oil Markets, Brazil's Petrobras Faces Both Opportunities and Risks

As the US-Iran conflict continues to escalate and shipping through the Strait of Hormuz remains blocked, international oil prices have climbed to near $97 per barrel. Against a backdrop of heightened geopolitical risk, the energy sector has become a market focus, with investors actively seeking assets that offer margin of safety and long-term value.

Closure of Strait of Hormuz Reshapes Supply Landscape

Since the US and Israel launched attacks on Iran in late February, the Strait of Hormuz has been largely closed. It remains unclear when this maritime artery, which carries about 20% of global oil supply, will reopen. Although a ceasefire agreement was reached in April, both sides have repeatedly violated it, and Iran has now formally suspended ceasefire talks. This means the global energy market is facing the largest supply disruption in decades.

The US Energy Information Administration estimates that global oil inventories will decline by 8.5 million barrels per day in the second quarter, with stocks potentially falling to critically low levels ahead of the peak demand season. After the International Energy Agency issued a warning, market concerns over supply tightness have further intensified.

Three US Oil Giants Each Have Their Strengths

Facing this structural supply shock, the three largest US oil companies, with their secure production footprints and robust cash flows, have become preferred destinations for safe-haven capital.

Chevron delivered better-than-expected results in the first quarter, with earnings per share of $1.41 far exceeding the market estimate of $0.97. Its dividend yield of 3.78% is the highest among the three giants, and management reaffirmed its 2026 production growth guidance of 7% to 10%, making it the top pick in the current environment.

ExxonMobil, leveraging its scale advantage, generated $2.7 billion in free cash flow in the first quarter, the highest shareholder return in the industry. However, its dividend yield has been compressed to 2.7%, the lowest level since 2014, reflecting that the stock price has partially priced in the geopolitical premium.

ConocoPhillips is known for its capital discipline, generating $2.4 billion in free cash flow in the first quarter. Its 2.74% dividend yield is moderate, but it lacks near-term production growth catalysts.

Opportunities and Risks for Petrobras

Petrobras is also benefiting from higher oil prices. As a net oil exporter, its stock price has risen sharply following the geopolitical conflict. Analysts point out that if the Strait of Hormuz remains closed for an extended period, Asian refineries will seek alternative supplies, and Brazilian crude could command a premium.

However, the pressure of domestic fuel price passthrough in Brazil cannot be ignored. Brazil relies on imports for about a quarter of its diesel. Disruption of Middle Eastern supply could push up import costs, thereby intensifying inflationary pressure and creating a pricing dilemma for the company.

In summary, against the backdrop of sustained geopolitical risk and structurally tightening supply, energy giants with secure production capacity, strong cash flows, and sustainable dividends offer allocation value. Investors should focus on fundamentals rather than short-term headline noise.