WTI Climbs as Iran Conflict Sharpens Supply Fears
Today’s Focus
Oil prices climbed on Thursday as renewed US-Iran fighting sharpened supply fears in an already tight market. WTI front-month futures settled near US$91.01 a barrel and Brent near US$95.63 a barrel.
The retail proxy United States Oil Fund closed at US$142.09, up 0.67%, tracking the WTI move. But Latin American producer shares diverged: Petrobras fell 1.68% to US$20.51, Ecopetrol lost 1.77% to US$17.20, and YPF dropped 2.78% to US$52.41.
The regional read was dominated by Venezuela’s post-sanctions restructuring, a US deal reassigning 17 oil fields, and Mexico’s Pemex output debate. Guyana’s Stabroek boom continued to add light-sweet crude to Atlantic Basin refiners.
Argentina’s Vaca Muerta shale stayed central to YPF’s story, even as higher global borrowing costs and oil-price volatility pressured the shares.
What matters today. The Iran-driven oil rally lifted crude proxies but hurt Latin American producer stocks, as country-specific risk returned to the fore.
01 The session in one read
Oil moved higher on Thursday, September 3, as renewed fighting between the United States and Iran tightened an already stretched supply picture. WTI front-month futures settled near US$91.01 a barrel, while Brent closed near US$95.63 a barrel.
The retail proxy United States Oil Fund rose 0.67% to US$142.09, tracking WTI futures. But Latin American oil shares slipped: YPF fell 2.78% to US$52.41, Ecopetrol 1.77% to US$17.20, Petrobras 1.68% to US$20.51.
Thursday’s session was a tale of two forces. A geopolitical supply shock lifted WTI and Brent, but producer equities fell as investors priced in country risk and higher funding costs.
The gap between USO’s gain and losses at YPF, Petrobras and Ecopetrol shows commodity strength alone did not lift equities.
Watch whether the Iran conflict escalates further, because another supply-driven spike in crude could deepen this divergence.
02 The board
The USO’s 0.67% gain to US$142.09 was the clearest expression of the Iran-driven crude rally. The fund tracks front-month WTI futures, making it a direct read on the short-term supply shock rather than on any single producer.
By contrast, the producer board showed losses across the region. Petrobras (US$20.51), Ecopetrol (US$17.20) and YPF (US$52.41) all fell, as investors priced commodity and equity risk differently.
| Asset | Level | Change |
|---|---|---|
| WTI crude (USO) | US$142.09 | +0.67% |
| Petrobras | US$20.51 | -1.68% |
| Ecopetrol | US$17.20 | -1.77% |
| YPF | US$52.41 | -2.78% |
Source: RT close, 2026-09-03. Where a commodity has no spot feed, an exchange-traded tracker or leading producer is shown as a labelled proxy.
Live Market IntelligenceThe live market board
Rio Times · Live Market Intelligence
Latin America — Cross-Market Board
| Instrument | Last | Change | YoY | Prev. | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| IBOV | 185,188.13 | -0.01% | +21.85% | 185,205.09 | 168,310 | 167,142 | — |
| IPSA | 11,315.26 | -1.14% | — | 11,445.90 | 11,210 | 10,984 | 1,513,213,483 |
| IPC MEX | 65,473.16 | +0.91% | +12.17% | 64,884.28 | 66,121 | 65,405 | 108,886,187 |
| MERVAL | 3,058,093 | -1.55% | +30.51% | 3,022,485 | 3,042,365 | 2,991,150 | — |
| COLCAP | 2,534.46 | +1.81% | — | 9.04 | 9.05 | 9.02 | 4,133 |
| BVL PERÚ | 59,719.97 | +0.43% | — | — | — | — | — |
| USD/BRL | 5.16 | +0.01% | -5.13% | 5.16 | 5.18 | 5.14 | — |
| EUR/BRL | 5.95 | +1.01% | -5.83% | 5.89 | 5.98 | 5.94 | — |
| USD/MXN | 17.06 | -0.24% | -8.58% | 17.10 | 17.08 | 17.01 | — |
| USD/CLP | 913.98 | +0.04% | -5.67% | 913.65 | 915.11 | 906.68 | — |
| USD/COP | 3,140 | +0.03% | -22.04% | 3,139 | 3,141 | 3,105 | — |
| USD/PEN | 3.36 | -0.66% | -4.82% | 3.38 | 3.38 | 3.35 | — |
| USD/ARS | 1,493 | +0.10% | +12.96% | 1,491 | 1,494 | 1,480 | — |
| USD/UYU | 40.27 | +1.24% | +1.80% | 39.77 | 40.27 | 40.23 | — |
| USD/PYG | 5,939 | +1.68% | -19.54% | 5,841 | 5,939 | 5,925 | — |
| USD/BOB | 11.64 | -0.76% | +72.04% | 11.73 | 11.72 | 11.64 | — |
| USD/DOP | 58.34 | +1.25% | -3.44% | 57.62 | 58.34 | 58.04 | — |
| USD/CRC | 445.92 | +0.89% | -9.71% | 441.97 | 448.50 | 445.92 | — |
03 What moved it
The trigger was renewed conflict between the United States and Iran, which sharpened fears of supply disruption in a market already tight. That lifted both WTI and Brent, and carried the USO proxy higher.
But the same oil shock fed into a global rise in borrowing costs, which pressured equity valuations. China’s 9% year-on-year drop in oil consumption in the second quarter also reminded investors that price spikes can speed demand destruction.
04 The Latin American read
Petrobras remained tied to Brazil’s pre-salt fields off Rio and São Paulo, one of the world’s largest offshore growth platforms. Yet with no fresh corporate news on Thursday, the shares followed broader risk-off moves rather than the crude rally.
In Mexico, Pemex’s Q2 output of 1.658 million barrels a day framed the debate over bringing in private partners. Guyana’s ExxonMobil-led Stabroek block continued to add light-sweet crude to Atlantic Basin refiners, though Thursday’s news flow centred on global price drivers.
Argentina’s YPF kept Vaca Muerta central to its story, targeting near 215,000 barrels of shale oil a day in 2026. It is also spending US$160 million to drill 12 horizontal wells for the Argentina LNG project.
Even so, the shares posted the region’s sharpest decline.
05 The names to watch
Petrobras is the clearest Latin American proxy for offshore crude strength, but its 1.68% drop showed that Brazil-specific risk still matters. Ecopetrol’s 1.77% decline pointed to similar pressures in Colombia.
YPF is the group’s highest-beta name, with its Vaca Muerta ramp and LNG pilot tied to oil and gas prices.
Venezuela’s US deal for 17 oil fields also reframes the region’s supply outlook. It displaces operators linked to Maduro allies and opens room for new investment.
06 The outlook
The core question is whether the Iran conflict escalates or cools. Further disruption would push crude higher and widen the gap between commodity and producer equities.
For Latin America, the outlook hinges on whether higher oil prices can overcome rising global borrowing costs and country-specific political risk. Watch Venezuela’s post-deal export trajectory and Pemex’s private-partner strategy as the next catalysts.
07 What to watch
- US-Iran escalation: Any further fighting would tighten supply and push WTI and Brent higher, testing the divergence between USO and producer shares.
- Venezuela export recovery: The US deal over 17 fields could lift output and exports to the US Gulf, reshaping Atlantic Basin light-sweet supply.
- YPF shale spending: Vaca Muerta’s 2026 target of about 215,000 shale barrels per day depends on YPF holding capital spending despite price swings.
- Pemex private partnerships: Mexico’s push to bring in private operators will determine whether Pemex can stabilise output near 1.658 million barrels per day.
Frequently Asked Questions
Why did oil prices rise on Thursday?
Renewed fighting between the United States and Iran sharpened supply fears in an already tight market. WTI settled around US$91.01 and Brent near US$95.63.
Why did Petrobras and YPF shares fall despite higher crude?
Investors sold producer equities on country-specific risk and rising global borrowing costs, even as the USO proxy tracked WTI higher.
What is the USO?
The United States Oil Fund is an exchange-traded fund tracking front-month WTI crude futures. It works as a direct retail proxy for the oil price.
What is driving Venezuela’s oil story?
A US deal reassigning 17 oil fields displaced sanctioned-linked operators, while Q2 output rose to about 1.2 million barrels per day.
Market data: RT
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error
LatAm Markets: Live Signals → — real-time movers, turnover leaders and FX across Latin America.
Read More from The Rio Times