Crude oil remained volatile Monday after posting its strongest weekly advance in recent trading, with escalating military tensions between the United States and Iran raising fresh concerns about global energy supplies. Oil climbed 9.7% last week as investors increasingly priced the possibility that the conflict could interfere with shipments through the Strait of Hormuz, one of the world’s most strategically important energy corridors.

The latest escalation followed US claims that its forces struck three Iranian oil tankers over the weekend, destroying one, in retaliation for ballistic missile attacks against US Navy vessels. Tehran subsequently threatened to establish a restricted zone beyond the strait, reportedly reaching from the US naval blockade toward areas of the Persian Gulf. Iran also claimed attacks against three tankers, although those reports remained unverified.

Could the Strait of Hormuz Become the Market’s Biggest Risk?

The Strait of Hormuz has become the central focus for oil traders because any sustained disruption could rapidly tighten global supply. US Energy Secretary Chris Wright said Washington intends to maintain its naval presence and blockade, while also seeking to protect commercial shipping. He has previously indicated that millions of barrels of crude continue to move through the waterway despite the conflict.

That distinction is critical for markets. Oil prices do not require an immediate physical shortage to rise sharply; expectations of future supply constraints can be enough to create a substantial risk premium. If shipping restrictions intensify or commercial operators begin avoiding the region, the market could face higher transportation costs, longer delivery routes and tighter availability.

For consumers and businesses, a prolonged increase in crude prices could eventually feed into fuel, transportation and production costs, creating an additional inflationary challenge for economies already sensitive to energy prices.

How Much Has Oil Already Rallied?

The latest price data shows just how quickly the market has repriced geopolitical risk. Crude oil reached $92.29 a barrel on September 7, up 0.88% from the previous session. Over the past month, the commodity has gained 12.37%, while its year-over-year increase has reached 48.23%.

That momentum puts the current market far above the levels seen a year ago, although it remains well below crude oil’s historical record of $147.27 reached in July 2008. The comparison illustrates both the scale of the current rally and the potential for additional volatility if supply disruptions become more severe.

Investors will therefore be watching developments around the Strait of Hormuz as closely as production data. The immediate opportunity for energy producers is clear, but so are the risks: a sustained geopolitical shock could support oil prices while simultaneously worsening inflation and weakening global economic growth. The next phase of the conflict may determine whether the current rally becomes a temporary risk premium or a much broader energy-market shock.