Dunkleosteus was a massive armored fish that ruled the Devonian seas over 358 million years ago. With powerful, self-sharpening jaws and an immense bite force, it was one of the most fearsome ...

Exposure to the Barnett and Devonian zones “present really nice optionality” for Ring—especially with WTI prices at $75/bbl or higher, he said. “But they are not as economically attractive as the San ...