But it’s not that simple. 100 boiling is only true at sea level. At 530 (~1750 feet) it’s 98c. At 1500m (~5000ft) it’s down to 95c. At 3000m (10k feet) it’s just under 90c. Ocean water freezes at -2c. Fully saturated salt water freezes at -21c.

The reason West Coast states have expensive gas is that there are no pipelines connecting them to the rest of the countr, specifically Texas. Washington and Oregon produce zero crude oil. California can’t produce enough for the whole West Coast so a majority of oil has to be shipped by a more inefficient way, causing prices to go up. This is reflected by the fact the 4 most expensive states for gas are California, Washington, Hawaii and Oregon.