The gas pricing map of the United States would contradict that.

I don't know about where you're sourcing your info, and I don't know enough about it to check this source, lol.

Regardless, they seem confident?:

By contrast, the United States is supposedly relatively well-off since we are largely self-sufficient and in fact a net exporter of natural gas.

While the point about the US having large oil and gas production is important, it distorts the impact in important ways. The simplest way to think about the surge in oil and natural gas prices is as a big tax on consumers of these products.

When people pay $3.50 at the pumps, instead of the $2.80 we paid a month ago, this would be the same thing to consumers as if the government imposed a 70 cent a gallon gas tax. There would be a similar story with higher prices for home heating oil or natural gas. From the standpoint of consumers, the price increases are the same as if they just got hit with a big tax increase.

The difference is that instead of the money going to the government, as it would with a tax, it’s going to the oil and gas industry, Donald Trump’s campaign contributors. In principle, for a country like the United States, which is largely self-sufficient in oil and gas, if we could just rebate the money people paid in higher prices back to consumers, all would be fine.

https://cepr.net/publications/the-winning-and-losing-countries-from-high-oil-prices/

Some states have those taxes too. Not every state is evil about healthcare, but most are.