Since their formation billions of years ago, the oldest parts of the Earth’s continental rocks have generated natural hydrogen in massive amounts. Some of this hydrogen may have accumulated within accessible traps and reservoirs under the Earth’s surface. This store has the potential to contribute to the global hydrogen economy for hundreds of years.
This has been demonstrated by the production of near-pure hydrogen from a single gas field in Mali, attracting the attention of governments in the United States, Canada, Australia, the United Kingdom and Europe.
There is also interest from major venture capital investors and international resource companies. By the end of 2023, 40 companies were exploring natural hydrogen globally. That has likely doubled since 2024.