The value of cross-border energy trade between the United States and Mexico reached a nine-year high of $42 billion in 2021, according to the U.S. Energy Information Administration (EIA).

Mexico

The figure is the highest ever recorded in U.S. Census Bureau data, which started in 1996, said EIA researchers led by Natalie Kempkey.

The immense flow of energy between the North American neighbors consists mainly of petroleum products and natural gas from the United States to Mexico, and crude oil from Mexico to the United States.

U.S. natural gas exports to Mexico averaged 5.9 Bcf/d in 2021, of which 99% was sent by pipeline, researchers said. This is up from 5.45 Bcf/d in 2020.

Petroleum products, including finished motor gasoline and distillate fuel oil, are “the largest component...