The maintenance worker smells gas before it explodes and kills him. However, methane gas seeping from a well has no smell. The "gas smell" is added as a safety precaution.
In the 53rd minute, the red SUV (fire services vehicle) has no identifying number nor agency name.
They were told there was no point in going out to their cars as the heat was stopping them from starting then much later they group went out, got in the pick up truck and it started with no problem.