If every car in America stayed parked for one day?

Question

How low would the price at the pumps fall

Answer 1

Interesting question. For gas prices to fall very far, I think we would have to see demand for gas drop off for a much longer time period than one day.

However, a big enough boycott would have an immediate effect on gasoline inventories and the entire supply chain if oil and gas companies were taken by surprise. They may lower prices for a short time to alleviate the supply bottleneck.

Answer 2

They wouldn't.

In fact, they'd go up. One day isn't enough to make the oil producers even blink. If they noticed it, they'd just say, "Gosh, our revenues are low this month, better raise prices".

It doesn't really have anything to do with supply & demand, except that it gives them the chance to manipulate prices in their favor.

Answer 3

Not at all, since they would all use/buy gas the next day.
You haven't changed demand one bit - just delayed it, while making sure that station operators lose a day's wages/profits, and not hurting the "big oil" companies one bit.