Tri-Valley Corporation has published a report saying that the company has promoted …  petroleum and mineral exploration and production projects. Joseph R. Kandle, former president and chief operating officer of Tri-Valley Oil & …

Tri-Valley Corporation has exceeded 2,000 barrels of oil equivalent per day (BOED) …  period of record high oil and natural gas prices,” said Joseph R. Kandle, Tri-Valley Oil and Gas Co. president. Significantly, Kandle noted that …

-Tri-Valley Corporation announced that it has established an alliance with Excalibur …  share value and reward for our drilling partners,” said Joseph R. Kandle, president of Great Valley Production Services LLP. Tri-Valley …