i think there will be gas available, but critical dependence on it will jack up the price beyond what many may be willing or able to pay.
if it were a normal country there would be a crash program for supporting transitions to remote work where possible and some major public investments in transportation/electrification infrastructure where remote work is not possible to try and soften the blow by shifting as much low hanging fruit from petroleum dependency. it would still be a total shit show, but the foundation for a transition would be there and maybe the underlying infrastructure of society (schools, hospitals, logistics) could be kept above water as things are reoriented.
but i am fairly sure there will be none of that and the decision makers are going to ride the dragon directly into the wall at top speed to ensure a crisis allowing the largest capital formations yo hoover up more critical assets for pennies on the dollar.
some guys at a government agency called NOAA, what do these guys even do, NOAA? anyway they told me there's a bad hombre headed our way and you know i don't like the sound of that, so you know what happened? i cut their funding by 10 billion dollars and gave it straight to ICE, that'll show the eggheads what happens when you let bad hombres into our big beautiful country

and probably some water crises in the southwestern states.