More on the Oklahoma Geysers
The mud / water / gas geysers in Oklahoma that I posted about here are now spreading into a two-county area.
Local authorities seem to be relatively certain it's not a leak in any gas pipelines. It's noted that the leaks seem to be following the path of Winter Camp Creek (nee Dead Indian Creek), which seems to indicate a natural origin.
The story mentions that the water bubbling up is "cold." That's good news, since it tends to discount the possibility of hot magma rising to the surface. In some comments attached to the story, other possible explanations are offered, most centering around natural gas deposits naturally shifting closer to the surface.