rock oil

• Terme historique désignant le pétrole ou le pétrole brut, utilisé avant que l'industrie pétrolière moderne ne standardise les termes « pétrole » ou « pétrole brut ».

An obsolete term for petroleum or crude oil, historically used before the modern petroleum industry standardized the term 'petroleum' or 'crude oil'.

1. PetroleumB2formal

   A naturally occurring, flammable liquid found in geological formations beneath the Earth's surface, composed of hydrocarbons.

   Pétrole brut

   • Rock oil, also known as petroleum, is a key energy resource.
   • The discovery of rock oil transformed the region's economy.
   • Refining rock oil produces gasoline, diesel, and other fuels.