Either a plane or a gas pipeline.
Lots of fuel in the center of it all.
Odd they claim a gas pipeline when the fuel is liquid ...
Gas line burns are a long, high pressure jet of flame coming out horizontally, with a larger area-sized explosion first as the fuel-air mixture blows up.
This is more likely a pressurized liquid.
I can't help but think plane because it's so close to an airport. It's just a guess, though.