Global oil markets extended gains on Tuesday, April 28, 2026, as geopolitical tensions in the Middle East and continued disruption along the Strait of Hormuz injected a fresh risk premium into crude, pushing prices above key thresholds and signalling likely upward adjustments in downstream fuel pricing.
As of 9:30 a.m. WAT, Brent crude traded at $111.30 per barrel, up 2.86 percent, while WTI crude rose to $99.02 per barrel, a 2.75 percent increase, reflecting sustained bullish momentum driven by supply concerns.
The latest rally builds on earlier gains recorded at the start of the week, when crude surged more than 2 percent before briefly easing, as stalled diplomatic efforts between the United States and Iran heightened uncertainty around global energy flows.
Hormuz Disruptions, Diplomatic Breakdown Drive Market Tightness
Oil markets have remained under pressure since the breakdown of plans for a second round of U.S.-Iran peace talks, with Washington cancelling a scheduled negotiation mission. The development has reinforced concerns that tensions could persist, limiting near-term prospects for restoring normal supply conditions.
At the centre of the disruption is the Strait of Hormuz, a critical global energy corridor that typically handles about 20 percent of global crude and LNG flows. Ongoing constraints on tanker movement through the route have tightened supply expectations and supported higher prices across crude and refined products.
Additional price support has come from broader benchmark movements, with Murban crude trading above $104 per barrel and the OPEC basket rising above $108, indicating a market-wide response to tightening supply conditions.
Market participants are also factoring in evolving diplomatic activity outside the U.S. channel. Iran’s Foreign Minister, Seyed Abbas Araghchi, has engaged in discussions with regional and international counterparts, including a visit to Russia for talks with Vladimir Putin, as Tehran explores alternative pathways to de-escalation.
Iran has reportedly proposed a phased approach that prioritises reopening the Strait of Hormuz and restoring shipping flows before addressing broader nuclear negotiations. However, uncertainty remains over whether the United States will accept such sequencing, with Donald Trump maintaining pressure through continued enforcement measures targeting Iranian oil exports.
Supply Shock Spreads Beyond Crude as Price Pressures Build
The tightening supply outlook is increasingly extending beyond crude into refined products, with rising gasoline and heating oil prices signalling broader inflationary risks across transport, manufacturing, and consumer goods.
Analysts warn that sustained disruption in Hormuz could have far-reaching implications for global supply chains. The market is already pricing in the possibility that prolonged constraints may keep crude prices elevated, reinforcing expectations of tighter physical balances in the months ahead.
Despite intermittent diplomatic engagement, traders remain cautious, seeking clear evidence of de-escalation before reassessing market positions. The current environment suggests that volatility will persist, with prices highly sensitive to geopolitical developments.
For oil marketers, the implications are immediate. With crude benchmarks holding above the $110 mark and freight and supply risks intensifying, the cost of refined product imports is expected to rise, increasing the likelihood of upward price reviews across downstream markets.
The combination of constrained supply routes, stalled diplomacy, and sustained geopolitical risk continues to underpin bullish sentiment in the oil market, positioning prices for further movement should disruptions persist.