Fact sheet: Mexico’s 4 crude oil grades, API gravities and sulfur content

MEXICO CITY, MEXICO (By Fidencio Casillas, Energy Analytics Institute, 19.Jul.2025. Words: 175) — Mexico has 4 primary crude oil grades — Isthmus, Maya, Olmeca (the lightest) and Altamira (the heaviest) — according to state-owned Petróleos Mexicanos (Pemex).

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