For years, Puerto Rico has been unable to import natural gas from the US mainland. Thankfully, that has now changed. According to the International Gas Union’s recently-released 2026 World LNG Report, the United States last year became Puerto Rico’s largest liquified natural gas (LNG) supplier, accounting for roughly 35 percent of the island’s imports. And that actually understates matters, as the LNG Puerto Rico imports from Mexico — Puerto Rico’s third-largest supplier — is produced from US natural gas. Counting LNG shipped from Mexico but produced from American natural gas, 59 percent of Puerto Rico’s LNG ultimately originated in the United States.
That remarkable turnaround became possible only because market participants found two ways around the Jones Act, the 1920 law restricting shipments between US points to vessels that are built, flagged, owned, and crewed by Americans. For years, the complete absence of Jones Act-compliant LNG tankers effectively placed abundant American natural gas off-limits to Puerto Rico, forcing the island to import LNG from other countries, including Russia, Nigeria, Norway, Oman, and Egypt.