Brent Edges Up 0.7% to US$101 as Petrobras Falls | Oil, Oct 6
Key Facts
- Brent crude rose about 0.7% to roughly US$101 a barrel and US crude (WTI) about 0.4% to US$89.8 on Tuesday 6 October, ahead of weekly US inventory data (reported by Investing.com and Infobae).
- The G7 agreed on 2 October to release up to 100 million barrels of emergency stocks over four months, coordinated by the International Energy Agency, which had pulled prices lower on Monday.
- The US Energy Information Administration (EIA) now sees Brent averaging US$105 a barrel in the fourth quarter, US$14 higher than in its previous outlook, and about US$96 for 2026 (October outlook).
- Petrobras fell 1.41% to US$23.80 in New York, Ecopetrol 1.68% to US$16.96 and YPF 0.16% to US$51.16, despite firmer crude.
- Prediction markets: Polymarket gives 9.5% to crude reaching a new all-time high by 31 December (US$4.7 million traded, as of 8:30 pm ET, 6 October). Bets, not forecasts.
Today’s Focus
Oil edged up on Tuesday 6 October after Monday’s drop. Brent crude, the global benchmark, rose about 0.7% to roughly US$101 a barrel. West Texas Intermediate (WTI), the US benchmark, rose about 0.4% to US$89.8.
Two forces pulled in opposite directions. The G7 plan to release up to 100 million barrels from emergency stocks weighed on prices, while Houthi claims of attacks on Saudi targets kept supply risk alive.
Latin American oil shares did not follow crude higher. Petrobras, Ecopetrol and YPF were all lower in New York.
What matters today. The G7 release is a one-off supply boost, but the Gulf risk has not gone away. The EIA’s higher forecast shows how tight the market still looks.
01 The session in one read
Crude oil rose slightly on Tuesday 6 October. Brent for December delivery gained about 0.7% to roughly US$101 a barrel, and WTI for November about 0.4% to US$89.8, according to Investing.com market reports and Infobae. Both had fallen on Monday.
On Friday 2 October the G7 said it would release up to 100 million barrels of strategic stocks, mostly diesel, over four months, with the International Energy Agency coordinating. Prices fell on that news.
The rebound on Tuesday came as the Houthis, an armed group in Yemen, claimed attacks on Saudi airports and an oil installation on Monday. The risk to Saudi supply limited the fall.
The evidence points to a market that is nervous both ways. The emergency stocks are a one-off, and analysts note that they do not solve the shortage in refining and Gulf shipping routes.
We cannot confirm the exact settlement prices from an exchange source. The variable to watch is Wednesday’s official US inventory data.
02 The board
Oil proxies showed a mixed picture. The United States Oil Fund (USO), which holds WTI futures, rose 0.64% to US$144.91.
Latin American producers were weaker. Petrobras ADRs fell 1.41% to US$23.80, Ecopetrol 1.68% to US$16.96 and YPF 0.16% to US$51.16.
| Asset | Level | Change |
|---|---|---|
| USO oil fund (WTI proxy) | US$144.91 | +0.64% |
| Petrobras (NYSE) | US$23.80 | -1.41% |
| Ecopetrol (NYSE) | US$16.96 | -1.68% |
| YPF (NYSE) | US$51.16 | -0.16% |
Source: EODHD, close of 2026-10-06. Brent and WTI: market reports.
Brent and WTI levels in this wrap come from market reports, because EODHD has no continuous futures series for them. Contract prices differ by month: Brent for November closed near US$100.6 in other reports. Rio Times · Live Market Intelligence
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Instrument Last Change YoY Prev. High Low Volume
IBOV
205,835.29
-0.52%
+21.85%
206,911.89
168,310
167,142
—
IPSA
11,164.13
+0.36%
—
11,123.80
11,210
10,984
1,513,213,483
IPC MEX
65,246.95
+0.42%
+12.17%
64,975.08
66,121
65,405
108,886,187
MERVAL
2,896,853
+0.95%
+30.51%
3,022,485
3,042,365
2,991,150
—
COLCAP
2,589.04
+0.25%
—
9.04
9.05
9.02
4,133
BVL PERÚ
60,220.93
+0.91%
—
—
—
—
—
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 G7 release, announced on 2 October, is for up to 100 million barrels over four months, with diesel first. Analysts quoted by Brazilian media note that it is small against global use.
The EIA’s October Short-Term Energy Outlook, published on Tuesday, raised its Brent forecast to US$105 a barrel for the fourth quarter, US$14 above the September outlook. It sees an average near US$96 for 2026 and US$84 for 2027.
Brent averaged US$114 in September, according to the EIA, and attacks on Saudi Arabia’s East-West pipeline remain a source of volatility.
04 The Latin American read
For Latin America, high oil prices help exporters such as Brazil, Colombia, Ecuador, Guyana and Argentina. Brazil’s trade ministry cut its 2026 trade surplus forecast to US$84.4 billion from US$90 billion on Tuesday.
Producer shares still fell on Tuesday in New York. In São Paulo, Petrobras preferred shares dropped 2.78%, after jumping 8.2% on Monday.
05 The names to watch
Petrobras is Latin America’s biggest listed oil company. Its fall came after Monday’s large rally, so profit-taking is the likeliest explanation, though we cannot confirm it.
Ecopetrol is Colombia’s state-controlled producer, and YPF is Argentina’s largest oil company. Both depend on prices near current levels for investment plans.
06 The outlook
The next move depends on how the market absorbs the emergency barrels and on whether Saudi supply stays safe. The EIA expects Brent to fall to about US$84 next year.
For Latin American producers, a Brent price above US$90 keeps deepwater and shale projects attractive.
What Prediction Markets Say
Polymarket’s market on whether crude reaches a new all-time high by 31 December gave 9.5%, with US$4.7 million traded (read at 8:35 pm ET on 6 October).
That is a bet on a record price, far above current levels, not a forecast for the next weeks.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
07 What to watch
- US inventory data, Wednesday 7 October: The weekly report from the US Energy Information Administration; the private American Petroleum Institute report came out on Tuesday evening.
- G7 release details: How fast the 100 million barrels reach refiners will set the physical market tone.
- Saudi security: Further attacks on Saudi facilities would push prices up.
- Latin American producers: Petrobras and Ecopetrol shares will show whether investors see lower prices as temporary.
Frequently Asked Questions
Did oil rise or fall on 6 October?
Brent rose about 0.7% to roughly US$101 a barrel and WTI about 0.4% to US$89.8, after a fall on Monday, according to market reports.
What is the G7 oil release?
The G7 said on 2 October that it will release up to 100 million barrels, mostly diesel, from strategic stocks over four months, coordinated by the International Energy Agency.
What does the EIA forecast for Brent?
In its October outlook the EIA forecast Brent at US$105 a barrel in the fourth quarter, about US$96 for 2026 and US$84 for 2027.
Why did Petrobras fall when oil rose?
Petrobras shares fell 1.41% in New York after a large rally on Monday. Profit-taking is a likely reason, but the company gave no news.
Market data: EODHD; oil prices: Investing.com, Infobae; outlook: US Energy Information Administration; prediction markets: Polymarket (as of 8:30 pm ET, 6 October 2026)
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
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