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

---

Etymology

Origin of wildcatter

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

Example Sentences

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

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

From MarketWatch • Jan. 14, 2026

Jones, a veteran wildcatter, has a long history of making bold bets.

From The Wall Street Journal • Oct. 29, 2025

Endeavor’s roots date to 1979, when a wildcatter, Autry Stephens, drilled his first well in West Texas.

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