What Exxon and Shell sell (3)

I believe the answer is:

gas

(Other definitions for gas that I've seen before include "idle chit-chat" , "Oxygen maybe" , "Hydrogen or oxygen, say" , "natural resource" , "Piped fuel" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.