A high pressure gas flow coming from a blowout seems very likely.
Might be — according to the company they weren’t drilling at the time, they were completing a cementing operation. But if it were gas, why is the control house burning and not the drill platform ... And wouldn’t the gas just be flaring ...
You would think the control house would be protected from this kind of common failure, a blow out, not the first to burn. You lose control you are going to have small problems get big real fast.