From the article: Their most stunning find was a deep fault at a bottom corner of the computer scan that showed oil literally gushing in. "We could see the stream," says Andersen. "It wasn’t even debated that it was happening."
Pretty good evidence that this is happening.
Out of the thousands of oil wells, one has oil gushing in from an unknown source. It is quite possible that there is simply a strange geological formation there, and not that the oil is gushing up from the center of the earth.