Endeavor Energy Resources
| Company type | Private |
|---|---|
| Industry | Oil and gas exploration and production |
| Founded | 1979 |
| Founder | Autry Stephens |
| Fate | Acquired by Diamondback Energy in 2024 |
| Headquarters | United States |
Area served | United States |
Key people | Autry Stephens (founder) |
| Products | Hydrocarbon exploration and production |
| Parent | Diamondback Energy (since 2024) |
Endeavor Energy Resources was a prominent independent oil producer operating within the contiguous United States, specializing in hydrocarbon exploration. Established in 1979 by Autry Stephens, the company started with an 80-acre property in the Spraberry Trend and expanded by taking on complex wells that others tended to avoid.
In 2005, Endeavor grew its portfolio through the acquisition of Perenco Energy, which was later renamed LCX Energy. By April 2017, it initiated a $300 million joint venture alongside a subsidiary of Ares Management to enhance its exploration and production efforts.
After Stephens was diagnosed with prostate cancer, he decided to sell the firm to provide financial security for his family. In September 2024, shortly after Stephens passed away, Diamondback Energy purchased Endeavor for $26 billion, representing a major consolidation within the Permian Basin oil industry.