Oil Wrap: Guyana Boom, Petrobras Pre-Salt Rise on Monday
Key Facts
- Petrobras rose US$19.35, up 4.43%, as investors focused on the P-80 and P-82 platforms nearing deployment in the Búzios pre-salt field.
- WTI proxy USO jumped 3.08% to US$133.70, reflecting a stronger late-session bid for US crude exposure.
- YPF gained 2.75% to US$51.58, tracking the broader rally in Latin American energy stocks.
- Ecopetrol edged up 1.03% to US$16.67, a modest move against the region’s oil-linked board.
- Guyana’s consortium keeps attracting attention with its 45/30/25 structure and a government take of 39.8% after royalties.
- Venezuela deals are in focus as Chevron, ONGC, GE Vernova, Eni and GeoPark prepare final energy agreements.
Today’s Focus
Oil stocks across Latin America closed firmer on Monday, August 31, 2026, with Brazil’s Petrobras leading the charge. The company’s New York shares finished at US$19.35, up 4.43%, as investors priced in the nearing deployment of the P-80 and P-82 floating platforms in the Búzios pre-salt field. Those two units carry about 450,000 barrels per day of combined capacity, a concrete supply boost for the Brazilian upstream story.
The WTI-tracking fund USO ended at US$133.70, up 3.08%, signalling a strong late-session bid for crude exposure. Argentina’s YPF rose 2.75% to US$51.58, while Colombia’s Ecopetrol added 1.03% to US$16.67. The moves suggest that investors were leaning into Latin American oil stocks even as global crude headlines remained volatile.
Guyana’s offshore boom remained a central narrative. The consortium structure of 45% ExxonMobil, 30% Hess and 25% CNOOC continues to draw foreign capital, with the government taking 39.8% of output including royalties once cost-recovery milestones are met. Venezuela also stayed in the headlines as Chevron, India’s ONGC, GE Vernova, Eni and GeoPark prepared to sign final energy agreements.
What matters today. Latin American oil stocks rose more than crude itself, with pre-salt execution in Brazil and Guyana’s development driving the region’s premium.
01 The session in one read
Latin American oil stocks finished the session of Monday, August 31, 2026, with a distinctly bullish tint. Petrobras led the board with a 4.43% gain to US$19.35, while the WTI-tracking USO rose 3.08% to US$133.70.
The strength was not uniform, but the direction was clear. YPF added 2.75% to US$51.58 and Ecopetrol gained 1.03% to US$16.67, confirming that investors were buying Latin American energy exposure across the region.
Behind the move sat two different engines: Brazil’s pre-salt execution and Guyana’s offshore boom. Both are long-cycle supply stories that investors treat as more durable than a single day’s crude print.
Petrobras and YPF outperformed the underlying oil price on Monday, showing that investors are rewarding project execution and reserve exposure over day-to-day crude moves. The Búzios platforms and Guyana’s offshore ramp are tangible supply stories that can compound even if Brent and WTI stall. Watch whether Venezuela’s final agreements with Chevron and partners materialise, as that would add another layer of Latin American supply growth to the global balance.
02 The board
The WTI proxy USO settled at US$133.70, up 3.08%, showing that the late-session bid for crude was firm. Petrobras at US$19.35 delivered the strongest percentage gain among the Latin American names, while YPF’s rise to US$51.58 kept Argentine energy in the mix.
Ecopetrol’s move to US$16.67 was the most conservative of the group, up 1.03%. The spread between Petrobras and Ecopetrol reflects the market’s preference for pre-salt growth over more mature Colombian production.
| Asset | Level | Change |
|---|---|---|
| WTI crude (USO) | US$133.70 | +3.08% |
| Petrobras | US$19.35 | +4.43% |
| Ecopetrol | US$16.67 | +1.03% |
| YPF | US$51.58 | +2.75% |
Source: RT close, 2026-08-31. Where a commodity has no spot feed, an exchange-traded tracker or leading producer is shown as a labelled proxy.
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Latin America — Cross-Market Board
| Instrument | Last | Change | YoY | Prev. | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| IBOV | 179,722.48 | +1.30% | +21.85% | 177,418.78 | 168,310 | 167,142 | — |
| IPSA | 11,315.26 | -1.14% | — | 11,445.90 | 11,210 | 10,984 | 1,513,213,483 |
| IPC MEX | 65,314.78 | -0.18% | +12.17% | 65,430.32 | 66,121 | 65,405 | 108,886,187 |
| MERVAL | 3,049,455 | +0.51% | +30.51% | 3,022,485 | 3,042,365 | 2,991,150 | — |
| COLCAP | 2,470.26 | +1.86% | — | 9.04 | 9.05 | 9.02 | 4,133 |
| BVL PERÚ | 59,450.29 | +0.11% | — | — | — | — | — |
| 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 | — |
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03 What moved it
The session’s clearest driver was Petrobras’s progress on the P-80 and P-82 platforms in the Búzios pre-salt field. With about 450,000 barrels per day of combined capacity approaching deployment, investors saw a concrete addition to Brazil’s exportable volumes.
Guyana’s offshore development added a second layer of confidence. The consortium’s 45/30/25 split between ExxonMobil, Hess and CNOOC, with the government taking 39.8% of output after royalties, has become a benchmark for how foreign capital can work in Latin America.
Venezuela also featured, though less as a price driver and more as a geopolitical narrative. Chevron, ONGC, GE Vernova, Eni and GeoPark were reported close to signing final energy agreements, keeping the country’s vast reserves in the conversation.
04 The Latin American read
Brazil remains the region’s most investable oil story, because the pre-salt offers scale, technical certainty and a clear path to exports. The P-80 and P-82 platforms are tangible milestones that markets can price, unlike political promises.
Argentina’s Vaca Muerta and YPF continue to ride the same wave, though the shale play’s growth is more dependent on infrastructure and capital controls than Brazil’s offshore. Guyana is the purest growth story, with a government take structure that has so far survived political scrutiny.
Venezuela is the wildcard. Any final agreements with Chevron and partners would bring fresh investment, but the reported ownership confusion around the fields means investors are treating those headlines with caution.
05 The names to watch
Petrobras is the clearest beneficiary of the pre-salt ramp, with the Búzios platforms offering a near-term catalyst. YPF gives exposure to Vaca Muerta’s long-term promise, while Ecopetrol offers a steadier, lower-beta play on Andean crude.
Guyana’s listed proxies, particularly Hess, remain the way many foreign investors access the offshore boom. Venezuela’s potential deal with Chevron and ONGC could re-rate the country’s risk profile, but only once signatures are final and the operating structure is clarified.
06 The outlook
The Latin American oil premium should persist as long as project execution stays on schedule. Brazil’s P-80 and P-82 platforms, Guyana’s ramp and any Venezuelan agreements all point to rising supply from the region, which matters more to these stocks than a single day’s crude move.
07 What to watch
- Petrobras platform timing: Any update on P-80 and P-82 start-up dates will move the stock, since the combined 450,000 barrels per day is a major earnings lever.
- Venezuela deal closure: Signatures from Chevron, ONGC, GE Vernova, Eni and GeoPark would signal a new phase for the country’s oil sector and could lift risk appetite.
- Guyana output milestones: Progress on the next floating production units will confirm the 39.8% government take and keep Hess and partners in focus.
- YPF and Vaca Muerta news: Argentine infrastructure or capital-control headlines remain the swing factor for YPF’s ability to monetise shale output.
Frequently Asked Questions
Why did Petrobras rise on Monday?
Petrobras gained 4.43% to US$19.35 because investors focused on the P-80 and P-82 platforms nearing deployment in the Búzios pre-salt field, with about 450,000 barrels per day of combined capacity.
How did the WTI proxy move?
The WTI-tracking fund USO rose 3.08% to US$133.70, signalling a firm late-session bid for US crude exposure on Monday, August 31, 2026.
What is Guyana’s government take?
Guyana’s government takes 39.8% of output including royalties after cost-recovery milestones, with the offshore consortium split 45% ExxonMobil, 30% Hess and 25% CNOOC.
Which companies are close to Venezuela energy deals?
Chevron, India’s ONGC, GE Vernova, Eni and GeoPark are preparing to sign final energy agreements in Venezuela, covering oilfields and power infrastructure.
Market data: RT
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