Oil! is a novel by Upton Sinclair published in 1927. It is a third person narrative, with its main character being "Bunny" Arnold Ross Jr., son of an oil tycoon. Bunny's sympathetic feelings towards oilfield workers and socialists provoke arguments with his father throughout the story. The book was written in the context of the Harding administration's Teapot Dome Scandal and takes place in southern California.
On December 26, 2007, a film loosely based on the novel was released under the title There Will Be Blood, directed by Paul Thomas Anderson.
A printing of the novel released on December 18, 2007 carried the banner "the inspiration for There Will Be Blood".
An oil is a substance that is in a viscous liquid state ("oily") at ambient temperatures or slightly warmer, and is both hydrophobic (immiscible with water) and lipophilic (miscible with other oils, literally "fat loving"). This general definition includes compound classes with otherwise unrelated chemical structures, properties, and uses, including vegetable oils, petrochemical oils, and volatile essential oils. Oil is a nonpolar substance.