In recent days, the price of diesel has surged, raising the cost of soybean production in southern Maranhão, notably in the city of Balsas. Farmers report that the price of diesel, which was averaging R$ 5.95 per liter, has skyrocketed to R$ 7.96, marking a staggering increase of 33.78%. This spike in fuel prices is causing significant concern among local agricultural producers who depend on affordable diesel for their operations.

Balsas is a crucial hub for agribusiness in the Mapitoba region, which encompasses Maranhão, Piauí, Tocantins, and Bahia. Soybean cultivation in Balsas contributes to 10% of Brazil’s national production, alongside crops such as maize and cotton. The city’s economy is heavily reliant on agriculture, and with it being the third richest city in the state, any fluctuations in production costs can have widespread economic implications.

The increase in diesel prices is particularly problematic for the transportation of soybeans, as much of the crop is transported by truck to the Port of Itaqui in São Luís or to the grain shipping terminal of the Norte-Sul Railway in Porto Franco. With the escalation of geopolitical tensions, including the conflict in the Middle East since March 2026, diesel prices have continued to rise, putting additional pressure on the local agricultural economy and heightening concerns among farmers about future production costs and their sustainability.