What do Americans call gas used for cooking?

If it is piped into the house it is called gas, And yes, that can be confusing because you have to rely on context to know if they are talking about natural gas on petrol gas. If it is bottled natural gas in more rural areas it is called propane, which often is used for barbeques as well.

Natural gas.

Natural gas or propane

Gas

Gas is also something that accumulates in our lower intestines only to be released in elevators

There is also swamp gas

There are lots of gasses for other things, but we use them by name: such as butane or propane for grills, camp torches and cigarette lighters.

There is also diesel, which is not gas. This is how we distinguish what goes in what vehicles.

Standard vehicles get gasoline, which is called gas for short.
Diesel only goes in diesel engines. Getting that wrong makes foe a very bad day.

Considering that both gasoline and diesel are both petroleum and petrol is short for petroleum, do you get confused at the petrol station?

I worked in HVAC recently and all of them just called natural gas "gas". Propane was "gas", too. If no one asks what kind of fuel we're using, it's just "gas". If someone asks, then we specify.

In the US we call it gas, but sometimes natural gas so as not to confuse it with gasoline (which we also just call gas, mostly).

Silly Americans.

It's just gas, which could be natural gas or propane

Gas

In America we have aluminum. Across the pond in Great Britain, they use a Wolverine metal called allymininum. Our car hood is called a bonnet. Our car trunk is called a boot. We say Prius (Pree-us), they say Prius (Pry-us). We call it dentistry, they call it maybe next year…

Same word, "gas".

We figure out which one the person is referring to by listening to the rest of the sentence. If someone says "We need gas for the car" we assume they're talking about petrol/gasoline. If they say "We need gas for the stove", we assume they're talking about natural gas.

We call it "natural gas", my sister could give you the ins and outs, but she has only began to understand how California effects the economy, being deeply involved like she is.

A fart

They just pour some petrol into the pan before they throw on the ham and eggs.

Natural gas, gas or LP

Or propane and propane accessories

Propane - or LP for Liquid Propane....

Propane

Farts

gas