Answer:

naturalgas

Answer	Crossword Clue
NATURALGAS	Cooking aid
NATURALGAS	Eco-friendly energy source
NATURALGAS	It's at home in the range

NATURALGAS	Oil alternative
NATURALGAS	Blue flamer
NATURALGAS	Fuel.
NATURALGAS	Fuel from Texas, Oklahoma, etc.
NATURALGAS	Product of a chatterbox
NATURALGAS	It's used to make carbon black
NATURALGAS	Piped fuel

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.