Crosswordiee.com

% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Refinery product. 6 letters:

GREASE: Refinery product.
ETHANE: Refinery by-product
ETHYL: Refinery product
GASOLINES: Refinery products
SLAG: Refinery by-product
GAS: Product of a refinery.