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wildcatter

American  
[wahyld-kat-er] / ˈwaɪldˌkæt ər /

noun

  1. an oil prospector.

  2. a person who promotes risky or unsound business ventures.

  3. a person who participates in a wildcat strike.


wildcatter British  
/ ˈwaɪldˌkætə /

noun

  1. informal a prospector for oil or ores in areas having no proved resources

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of wildcatter

An Americanism dating back to 1880–85; wildcat + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Presidio differs from most small-cap energy companies, which tend to have a wildcatter mentality—drill somewhere new and try to hit the big one.

From Barron's Mar. 5, 2026

To get ahead in the next cycle, they may need to bring back some of that wildcatter spirit.

From The Wall Street Journal Feb. 10, 2026

“That wildcatter ethos” — marked by willingness to invest millions of dollars in projects with uncertain outcomes — “is exactly what’s needed,” Cranberg said.

From MarketWatch Jan. 14, 2026

Endeavor, founded by the billionaire wildcatter Autry Stephens, had become the subject of takeover speculation in oil circles over the past several months.

From New York Times Feb. 12, 2024

One damp spring day in 1917, Frank Phillips—a wildcatter who’d previously sold a tonic to prevent baldness—was out with his workers on Lot 185, less than half a mile from Lot 50.

From "Killers of the Flower Moon" by David Grann

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