Rainforest Destruction

What California's Brazilian oil actually is

The crude oil California imports from Brazil does not come from the Amazon rainforest. It comes primarily from Brazil's offshore pre-salt fields in the Santos Basin — deepwater wells drilled more than 200 km off the coast of São Paulo and Rio de Janeiro, far to the south of the Amazon.

Fields like Lula, Buzios, Iracema, Sapinhoa, and Frade sit beneath a thick layer of salt on the ocean floor, discovered in 2006 and developed over the years since. They are among the most technically sophisticated oil operations on earth — and they are the reason Brazil rocketed to become California's #1 foreign crude source, at 17.99% in 2025.

The Amazon deforestation shown on this map is driven primarily by cattle ranching and soy agriculture, not oil extraction. The deforestation and the oil are, geographically, separate stories.

Why the connection matters anyway

The connection between California's oil purchases and Amazon destruction is economic and political, not a direct pipe between a wellhead and a clearcut. But that does not make it trivial.

Brazil is simultaneously the world's largest tropical deforester and one of the world's fastest-growing oil producers. California, as Brazil's largest crude customer, is a significant source of the oil revenue that flows into the Brazilian economy. That economy, and its political decisions, determine how much forest is protected and how aggressively new extraction is pursued.

Most significantly: Brazil's national oil company has now received an environmental license to drill exploratory wells at the mouth of the Amazon River itself — Block 59 in the Foz do Amazonas Basin, approximately 160 km offshore Amapá. Twenty-eight additional blocks are awaiting licensing in the same basin, with Western and Chinese oil companies already awarded stakes. Researchers have calculated that burning the reserves expected from these wells would emit enough greenhouse gases to cancel out the entire benefit of reduced Amazon deforestation.