Geopolitical news often seems remote until it reaches tangible assets. September offered several examples to the contrary. Ukraine's largest drone attack against Russia struck refineries and energy-related infrastructure. At the same time, oil and especially refined-product markets remained sensitive to tensions in the Middle East. The result is a risk premium that spills over from the military arena into prices, freight and inflation expectations.
The Associated Press reported that Ukraine launched more than one thousand drones against Russia over the weekend, including significant attacks in the Moscow region. When refineries come under fire, the potential economic impact extends beyond the headline: less processing capacity means lower diesel and gasoline supply, wider refining margins and greater sensitivity to any additional disruption.
This is one reason central banks remain cautious. Even when a shock originates on the supply side, more expensive energy spreads through the economy. Freight costs rise, agriculture feels the pressure, industry passes costs through and expectations deteriorate. In September, Brent returned to around US$100, while global diesel markets reached particularly stressed levels.
For Brazilian investors, the lesson cuts both ways. Higher oil prices can benefit parts of the equity market and the trade balance. Yet the same move makes the Central Bank's task more difficult and increases uncertainty around inflation and the currency. Geopolitics is therefore not merely an international issue: it returns to portfolios through commodities, interest rates and the risk premium.
Original AI-generated illustration for OTR Capital.
In summary
- Attacks on refineries turn military conflict into a direct economic problem.
- Oil connects geopolitics, inflation and a more cautious stance from central banks.
- The effect on Brazil is ambiguous: it helps some assets while complicating the domestic macro outlook.
Sources
- Associated Press — Ukraine fires over 1,000 drones at Russia, including largest attack on Moscow (20 Sep 2026). Access source
- Associated Press — Russia and Ukraine trade strikes; Russian oil refineries targeted (22 Sep 2026). Access source
- Reuters — oil near US$100 and geopolitics continue to support the risk premium (20–21 Sep 2026). Access source
- Reuters — global diesel prices hit record highs amid supply disruptions (21 Sep 2026). Access source
Visual note: charts were prepared for OTR Capital from the sources listed; illustrative images were generated with AI where a chart would not serve the editorial purpose.