Is There Free Hydrogen on the Earth?

If there are pockets of hydrogen in the ground, then where did it come from and why is it still there? And there are potential answers to those questions. So we've known for years that there are these isolated pockets of hydrogen. There was one well in Mali, where I think a farmer, whatever, there was a gas coming out of the ground and it caught on fire. They eventually capped the well and it was producing 98% pure hydrogen. And they're using it to make electricity now. It hasn't reduced over time. Like it hasn't been diminishing over time. Maybe it's both. That's that's what may be the case. Right? We would pull hydrogen out