Simmons is among the most prominent oil and gas analysts, if not the most prominent. He says that the Russians have used small nuclear detonations inside wellbores to seal some major blowouts in the last 30 years.
He also mentions the second huge plume of oil that has been discovered deep underwater a few miles away from the well. Apparently the use of dispersant chemicals has only made things worse by increasing the density of the oil so that it doesn’t all float to the surface where it can be sucked into tankers.
Here’s the Bloomberg interview: