What feline-sounding term is typically used to describe an exploratory gas or oil well? The term dates all the way back to newspaper articles from the 1870s. The term could also be used to describe a student at the University of Arizona.

Oil is measured in barrels, which is equal to 42 US gallons or 159 liters.

Venezuela leads the world with 300.9 billion barrels of oil reserves – a 17.8 per cent share of global reserves.