Tri-Valley said that the Pleasant Valley No-1 well successfully completed its Vaca production test and is on a full steam cycle to begin steady production. The second and third Vaca horizontal wells will be steamed when the rig moves out of the way to drill the fourth and fifth wells.

Tri-Valley is working on expansion plans including another drill site to accommodate its accelerated drill program for early production increases. The company believes it can add hundreds of barrels per day of new production per quarter in 2008 with this approach at Pleasant Valley.

On its other main properties, Tri-Valley is completing right of way arrangements to hook up its 48X-7 gas well on the Moffat Ranch west of Madera, California. The company is also evaluating two dozen additional locations on the Ranch for its next drilling.

At Temblor Valley West adjoining the South Belridge oil field west of Bakersfield, Tri-Valley is conducting its first complete steam stimulation on its Lundin-Weber No-352 Diatomite well.