Demand for road fuel is dropping in the UK, peaked about 2016 and has declined slightly year on year since.
The AA did some maths a while back, and for them the results seemed plausible for a change. They calculated that rises in fuel duty had gone past the break-even point, and any further rises would actually bring in less revenue, not more, as people tried to avoid it with ever more economical cars and simply driving less.
But the drop in demand is nowhere near 35%.
But one should also consider that a drop in forecourt numbers by 35% has not resulted in a drop in pump numbers by anywhere near that amount. The closures are usually smaller independent stations where the shop is less profitable, and new forecourts tend to be larger supermarket types with 2 or 3 times the number of pumps. As a consequence the number of available pumps has only dropped slightly (id tell you by precisely how much but i don't remember where I read all this, butnit was only a couple of percent) so the reality isn't quite doom and gloom for dino drinkers just yeat.