Oil prices pulled back slightly on Friday but remained on course for a hefty weekly gain, as escalating security threats at two of the world's most vital maritime chokepoints raised fresh concerns about global supply. Brent crude, the international benchmark, fell to $99.55 a barrel after briefly surging above $100 the previous day. Still, it was heading for a 13% weekly increase. The U.S. benchmark West Texas Intermediate (WTI) also edged lower on the day but posted a sharp weekly rise.
The price action reflects a market that is less worried about how much oil exists underground and more focused on whether it can physically reach buyers on time. Two strategic waterways — the Strait of Hormuz and the Bab el-Mandeb strait near the Red Sea — have become flashpoints, threatening the smooth flow of crude from major producing regions.
Strait of Hormuz: A Near-Total Freeze
The Strait of Hormuz, a narrow passage between Oman and Iran, is the most important oil transit chokepoint in the world. Roughly one-fifth of the world's petroleum passes through it daily. This week, however, traffic nearly ground to a halt. According to Kpler, a commodity-tracking firm, only one tanker crossed the strait on Thursday — the lowest single-day count on record.
That near-total freeze is a dramatic escalation. Even a partial disruption at Hormuz can send shockwaves through global oil markets, because any prolonged closure would cut off supplies from major producers like Saudi Arabia, Iraq, Kuwait, and the United Arab Emirates. The situation has been compounded by heightened geopolitical tensions in the region, including recent confrontations involving Iran and its proxies.
Red Sea Risks Add to the Pressure
At the same time, risks are rising in the Red Sea, another critical artery for oil shipments. The Bab el-Mandeb strait at the southern end of the Red Sea connects the Mediterranean and Indian Ocean via the Suez Canal. Attacks on commercial vessels by Houthi rebels in Yemen have made that route increasingly dangerous, forcing some tankers to take longer, costlier detours around Africa.
These twin threats have created a supply bottleneck that is pushing prices higher, even as global oil inventories remain relatively comfortable. The market is effectively pricing in a risk premium for the possibility that these chokepoints could remain disrupted for weeks or months.
What This Means for Investors
For everyday investors, the surge in oil prices has ripple effects that go beyond the energy sector. Higher crude costs tend to push up gasoline and heating oil prices, which can squeeze household budgets. They also feed into broader inflation measures, making it harder for central banks to cut interest rates. That dynamic has already been visible in recent weeks, with bond yields rising and mortgage rates climbing — mortgage rates hit 6.69%, their highest since last August, partly due to higher oil and bond yields.
Energy stocks, meanwhile, have been among the biggest beneficiaries. Companies involved in oil exploration, production, and services tend to see their profits rise when crude prices climb. Oil prices surging past $99 boosted energy stocks in premarket trading, and that momentum has continued through the week. However, investors should be aware that such gains can be volatile — a sudden de-escalation of tensions could send prices falling just as quickly.
For those with exposure to broader stock indexes, the impact is mixed. Higher oil prices can hurt sectors like airlines, shipping, and manufacturing, which rely heavily on fuel. At the same time, they can lift energy-heavy indexes like the S&P 500, where energy companies have a meaningful weight. The NZX 50 was flat as Brent surged past $100, reflecting the tug-of-war between inflation fears and energy sector gains.
What to Watch Next
Investors will be closely monitoring any diplomatic or military developments in the Middle East that could ease or worsen the chokepoint disruptions. The key question is whether the near-halt at Hormuz is a temporary blip or the start of a sustained blockade. Similarly, any escalation in Red Sea attacks could push more tankers onto longer routes, further tightening supply.
Central banks are also watching. If oil prices stay elevated, they could complicate efforts to tame inflation, potentially delaying interest rate cuts that markets have been hoping for. The Reserve Bank of India stepped in to support the rupee as Brent breached $100, a sign of how oil shocks can pressure currencies in importing nations.
For now, the oil market remains in a state of heightened alert. The 13% weekly gain in Brent is a reminder that geopolitical risk can re-emerge quickly, and that the global economy's dependence on a few narrow shipping lanes leaves little room for error.
