There is no fuel shortage.
If you refer to the post below that I made the other day, you will see that I warned that on Wednesday of this week the normal fuel trucks were not able to be dispatched that day due to a strike by the LPG drivers. That was only one day and as I mentioned, the ripple effect of that day may affect your local distribuidor. The strike has (so far) not been repeated and there is no shortage of fuel at the refinery. The shortage your delivery guy mentioned has to do with his companies distribution, not a reflection of the fuel supply at the refinery level (I just spoke our man at the refinery to confirm this, 4:40 pm Friday). However, given the current situation with the electricity, I would consider it a wise move to keep your tanks filled.
I will keep you posted if I here of any changes.
Greg