Mexico's 1938 Oil Nationalization: The Birth of Resource Nationalism

President Lázaro Cárdenas's 1938 expropriation of foreign-owned oil companies became the defining moment for Resource Nationalism—the principle that a nation's natural resources should primarily benefit its own people rather than foreign corporations.

Historical Context

• Foreign firms (mainly U.S./UK) controlled Mexico's oil, paying minimal royalties while repatriating profits.
• Labor disputes over wages/conditions were met with intransigence; Cárdenas supported workers.
• March 18, 1938: Decree nationalized 17 companies' assets, creating Petróleos Mexicanos (PEMEX).

Impact & Legacy

Domestic

• Symbolized sovereignty and social justice; remains a patriotic touchstone.
• PEMEX funded industrialization, infrastructure, and social programs for decades.
• Constitutionalized in Article 27: subsoil wealth belongs to the nation.

International Ripple Effect

• Inspired similar moves: Bolivia (1937, 2006), Iran (1951), Iraq (1972), Venezuela (1976), Chile (copper, 1971).
• Established precedent for renegotiating concession terms (50/50 profit splits, later production-sharing).
• Fueled OPEC formation (1960) and the 1970s resource sovereignty wave.

Modern Relevance

Resource nationalism persists in debates over lithium, rare earths, and water. Mexico's 2022 electricity reform and lithium nationalization echo Cárdenas's logic. The 1938 event remains the archetype: a Global South nation asserting control over its wealth against great-power interests.