Discovered in 1976, output from the offshore Cantarell field once supplied over 2 MMb/d, or more than half of Mexico's total crude production. But output at the field has fallen more than 80% since 2004 to hover around 340,000 b/d.
Reuters noted that Pemex’s investment will counteract the natural decline of Cantarell by squeezing out an additional 100,000 b/d per year via secondary recovery over the course of a decade. The plan includes stabilizing Akal, Cantarell's most productive sub-field, to keep its output steady at between 180,000 b/d and 200,000 b/d for a longer period of time. In May, Akal’s crude output stood at about 189,000 b/d.