Oil is any of a number of nonpolar, hydrophobic, and viscous liquids.

Oil also often refers to:

• Cooking oil, any liquid fat used in food preparation

Lubricant, a substance that reduces friction between surfaces

• Lubrication, using a lubricant to reduce friction

• Motor oil, any lubricant used in internal combustion engines

Petroleum (crude oil), naturally occurring liquid found beneath the Earth's surface, or a derived product:

• Fuel oil, liquid fuel burned for heat or power

• Heating oil, liquid fuel

Oil or OIL may also refer to:

Arts, entertainment, and media

Art

• Oil paint, paint with pigments suspended in an oil

• Oil painting, the process of using paints based on oils

Music

• Oil (band), a group of Californian heavy metal musicians

• OiL, a band from Pennsylvania now called CKY

• Oil: Chicago Punk Refined, a compilation CD released by Thick Records

• Midnight Oil, also known as "The Oils", an Australian rock band

• "Oil," a Gorillaz track featuring Stevie Nicks, released on the 2023 album "Cracker Island."

Television

Series

• Oil, an early title of the U.S. TV series Blood & Oil

• Oil, the original title of 1980s soap opera Dynasty

Episodes

• "Oil" (Dynasty), the debut episode of Dynasty

• "Oil" (The Young Ones), a 1982 episode of The Young Ones

Other arts, entertainment, and media

• Oil (film), a 2009 Italian documentary

• Oil!, a novel by Upton Sinclair published in 1927

Organizations

• Big Oil, a name used to collectively describe major oil corporations

• OIL (incorporations and corporate services), a company

• Office of Infrastructure and Logistics (European Commission) in Luxembourg

• Oklahoma Intercollegiate Legislature, a collegiate political education organization

• Oil India Ltd

• Oil Insurance Limited, a mutual insurance company

• Oilexco (TSX: OIL, LON: OIL), an oil company

Technology

• Ontology Inference Layer or Ontology Interchange Language, an ontology infrastructure for the Semantic Web

• OSEK Implementation Language, a description language used in OSEK systems

See also

• Oil lamp

• Langues d'oïl (in Romance languages)

• OYL (disambiguation)