Tri Valley Corp.

Tri-Valley Corporation is a publicly traded oil, gas, and mineral exploration and production company. It also has subsidiaries with production rigs to service its wells, and a drilling company to drill new wells. As a deep drilling specialist, Tri-Valley holds the North American record for the longest, fastest single bit run (10,045 feet in 116 hours on its 19,085 foot Ekho No. 1 deep well in the year 2000).