Petroleum Before It Is Refined
This page is the CodyCross answer for the clue below from Past and Present Tech, Group 1442, Puzzle 3 (Steam Engines).
Question is: Petroleum Before It Is Refined
and the answer is: CRUDEOIL
Word Meaning:
CRUDE OIL — Unrefined oil; as it is found underground, consisting mainly of hydrocarbons.
Definitions from Wiktionary.