Crude Oil Price Today 18 August 2026: Brent Climbs to $91.14 as US-Iran Ceasefire Collapses and Supply Fears Return
- August 18, 2026
- Posted by: Ankit Jaiswal
- Category: Market
Crude oil price today 18 Aug 2026: Brent $91.14/bbl (+0.3%), highest since Jul 30. WTI $85.04/bbl (+0.3%), highest since Jul 31. Iran shifts to offensive stance.
Quick Answer
The crude oil price today on 18 August 2026 moved higher as hopes for a lasting US-Iran peace deal faded significantly, with Iran announcing it will adopt a fully offensive military posture and Washington ruling out extending the temporary ceasefire. Brent crude futures rose 0.3% to $91.14 per barrel, their highest level since July 30, while WTI gained 0.3% to $85.04 per barrel. This move is being driven entirely by the geopolitical risk premium that returns whenever Strait of Hormuz supply routes face credible threats.
Global energy markets on 18 August reflect a sharp recalibration of geopolitical risk in energy markets. Brent crude futures climbed 27 cents, or 0.3%, to $91.14 per barrel in early Asian trading on 18 August 2026, the highest level since July 30. US West Texas Intermediate crude futures were up 42 cents to $85.04 per barrel, at their highest since July 31. Earlier in the session WTI had risen as high as $85.37, indicating that buyers are aggressive in pricing in the deteriorating Iran-US situation. This is therefore not a demand story but a supply-risk story.
The catalyst is clear. Iran has informed major powers that it will shift to a fully offensive military posture because efforts to negotiate a permanent end to its conflict with the US and Israel have stalled, a senior Iranian official confirmed to Reuters on Monday. Washington simultaneously ruled out extending the temporary ceasefire agreement that had briefly allowed diplomatic discussions to take place. With the ceasefire window closed and Iran taking a harder military line, the path to a peace-related resumption of oil tanker traffic through the Strait of Hormuz is now significantly less clear. This is why Brent and WTI have risen to multi-week highs despite no physical supply disruption having occurred yet.
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Crude Oil Price Today: Key Data for 18 August 2026
| Benchmark | Price (18 Aug 2026) | Change | Multi-Week High |
|---|---|---|---|
| Brent Crude (per barrel) | $91.14 | +0.3% (+$0.27) | Highest since July 30 |
| WTI Crude (per barrel) | $85.04 | +0.3% (+$0.42) | Highest since July 31 |
| WTI Session High | $85.37 | +1% intraday peak | Early session high |
All prices as of early Asian trading on 18 August 2026. Verify current prices from MCX (mcxindia.com) or official commodity exchanges.
Why Is the Crude Oil Price Today Rising? The Iran-US Geopolitical Trigger
Oil prices are rising on 18 August 2026 for a specific and serious reason. The Strait of Hormuz, through which a substantial share of global seaborne oil trade flows, is directly threatened whenever Iran-US tensions escalate. Even a partial disruption to tanker traffic through this chokepoint would reduce global oil supply by millions of barrels per day, a scenario that energy traders price into futures contracts rapidly. When Iran announces a shift to fully offensive military posture, as happened on 18 August 2026, the probability of Strait of Hormuz disruption rises sharply in the market’s assessment.
Iran Shifts to Fully Offensive Military Stance
A senior Iranian official confirmed to Reuters that Iran will adopt a fully offensive military posture because negotiations with the US and Israel toward a permanent end to the conflict have stalled. This is a significant escalation in language that oil markets take seriously. Iran has demonstrated in the past that it can threaten or disrupt oil shipping through the Strait of Hormuz, and any credible signal that it intends to activate this capability again pushes the crude oil price today higher.
US Rules Out Ceasefire Extension
Washington’s decision to rule out extending the temporary ceasefire agreement is the second key driver of the crude oil price today. A ceasefire extension would have kept open the diplomatic channel for negotiating a more permanent arrangement and allowed tanker traffic resumption discussions to continue. Without it, the risk of military confrontation near strategic oil supply routes is materially higher than it was a week ago. The crude oil price today is therefore incorporating a higher risk premium than it did during the brief ceasefire period.
Strait of Hormuz: The Chokepoint Driving Commodity Markets
Progress toward peace talks and resumption of oil tanker traffic through the Strait of Hormuz had ground to a halt even before today’s announcement, according to Reuters. The Strait is one of the world’s most critical oil supply arteries. Any extension of the conflict that makes the Strait unsafe for tanker navigation would force ships onto longer alternative routes, increasing costs and reducing effective supply. This structural vulnerability is the reason the crude oil price today is sensitive to every development in the Iran-US diplomatic track.
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Impact of Today’s Crude Oil Price on Indian Markets
Elevated oil prices on 18 August are relevant to Indian equity investors for several reasons. India imports approximately 85% of its crude oil requirement, making it one of the most oil-import-dependent large economies in the world. A sustained move higher in Brent toward and above $91 per barrel increases the oil import bill, pressures the current account deficit, and can contribute to inflation through higher fuel prices.
Oil marketing companies such as HPCL, BPCL, and IOCL face direct margin impact when crude costs rise faster than retail fuel price revisions. Upstream producers like ONGC and Oil India benefit from higher realisations. The rupee typically faces mild depreciation pressure when crude prices rise sharply, as dollar outflows for oil imports increase. The Sensex and broader equity markets can be indirectly affected if higher oil inflation raises expectations of tighter monetary policy.
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Conclusion
The crude oil price today on 18 August 2026 rose to multi-week highs, with Brent at $91.14 per barrel and WTI at $85.04, as the collapse of US-Iran ceasefire talks and Iran’s shift to a fully offensive military posture reintroduced a significant geopolitical risk premium into energy markets. Brent and WTI are not yet reflecting a physical supply disruption but are discounting the elevated probability of Strait of Hormuz-related supply risk. Monitor MCX crude oil futures for the India-specific crude oil price today and watch diplomatic developments in the US-Iran situation for the next directional move. Verify all commodity price data from official exchange sources before making investment or trading decisions.
Disclaimer: Data and figures in this article are sourced from publicly available information. These may or may not be accurate. Please verify all data with the official NSE (nseindia.com) and BSE (bseindia.com) websites before making any investment decision. Investments in securities are subject to market risk. This content is for educational purposes only and is not investment advice by Univest (SEBI RA INH000013776).
Frequently Asked Questions on Crude Oil Price Today
What is the crude oil price today on 18 August 2026?
Ans. The crude oil price today on 18 August 2026 shows Brent crude futures at $91.14 per barrel, up 0.3%, which is the highest level since July 30. WTI crude oil is at $85.04 per barrel, up 0.3% and at its highest since July 31. The rally is driven by fading hopes of a US-Iran peace deal, with Iran announcing it will adopt a fully offensive military posture, raising fears of supply disruptions in the Middle East.
Why is crude oil price rising today?
Ans. Crude oil price today is rising because ceasefire negotiations between the US and Iran have stalled and Iran has announced it will shift to a fully offensive military stance. This raises supply risk fears, particularly around the Strait of Hormuz through which a significant share of global oil trade flows. Any threat to tanker traffic through this chokepoint is taken seriously by commodity markets and drives a risk premium into crude oil prices.
What is the Brent crude oil price today?
Ans. Brent crude oil price today, on 18 August 2026, is $91.14 per barrel, up 0.3% from the previous session. Brent is the international benchmark for crude oil prices and this level represents the highest for Brent since July 30, 2026. The move reflects renewed geopolitical risk premium being priced into oil markets as US-Iran peace talks collapse and Iran moves to a more confrontational military stance.
What is WTI crude oil price today?
Ans. WTI crude oil price today on 18 August 2026 is $85.04 per barrel, up 0.3%. WTI, or West Texas Intermediate, is the US domestic crude oil benchmark. At $85.04, WTI is at its highest level since July 31, 2026, driven by the same US-Iran geopolitical risk premium that is lifting Brent crude prices. Earlier in the session WTI had risen as high as $85.37 per barrel.
How does US-Iran tension affect crude oil price today?
Ans. US-Iran tension affects crude oil price today because Iran controls or influences a significant portion of oil production and tanker traffic through the Strait of Hormuz. When Iran shifts to a more aggressive military posture and ceasefire talks stall, the risk of supply disruptions rises. Oil markets price this geopolitical risk into futures contracts immediately, pushing spot and forward prices higher, which is what is driving the crude oil price today.
How does the crude oil price today affect Indian markets?
Ans. Higher crude oil prices today affect Indian markets in several ways. India imports approximately 85% of its crude oil requirement, so rising prices increase the import bill, pressure the current account deficit, and can push inflation higher. Oil marketing companies like HPCL, BPCL, and IOCL face margin pressure when crude rises faster than retail fuel prices are revised. The rupee can also weaken as dollar outflows for oil imports increase.
Where can I track crude oil price today in India?
Ans. You can track the crude oil price today in India through MCX (Multi Commodity Exchange) crude oil futures, which are denominated in rupees per barrel and reflect global Brent and WTI moves adjusted for currency. MCX data is available at mcxindia.com. International Brent and WTI prices are available on Bloomberg, Reuters, and major financial news platforms. The Univest app also covers commodity market updates and their impact on Indian equities.
