Running just to stand still

摘要

Cantarell, in the Gulf of Mexico, was once the world's biggest offshore oilfield, holding over 35 billion barrels of the black stuff. Now, after nearly three decades, it is running out. At its peak in 2004 it produced 2.1m barrels of oil per day (b/d), making up 60% of Mexico's total output. That figure has already fallen by more than 500,000 b/d and could fall by another 200,000 b/d by the spring. This is a worry for both Mexico and the world. Although Mexico contains less than 1% of the world's proven oil reserves, it is the sixth-largest producer. Its output of 3.1m b/d is well above that of Venezuela or Kuwait. And although oil no longer dominates the Mexican economy-even at recent high prices it provided 16% of exports in 2006, down from 68% in 1982-it lubricates the public finances, contributing nearly 40% of federal revenues.