Latin America’s Oil Boom

Foreign Policy's new dispatch, "Latin America's Oil Boom," ties together a story that's been building in pieces for years: Guyana's offshore discoveries, Brazil's pre-salt fields, and Argentina's Vaca Muerta shale are turning the region into a genuine swing producer in global energy markets — and the piece frames that rise against Iran's shifting position in the same trade.

This is the pattern that keeps repeating in commodity geopolitics: when a resource-rich region finally gets the capital and technology to unlock reserves that sat undeveloped for decades, the shift doesn't just move barrels — it moves leverage. OPEC+ discipline gets harder to enforce when non-cartel supply grows. Sanctioned exporters like Iran lose pricing power as buyers get more options. And the countries doing the unlocking — Guyana with a fraction of its old GDP, Argentina mid-cr