Vintage Petroleum Scores Sixth Success in Yemen

Vintage Petroleum says that the An Nagyah #18 well in the Republic of Yemen has tested light (43 degree API) oil from the sub-salt Upper Lam "B" formation. The well is the sixth horizontal well drilled in the company's An Nagyah field.

The An Nagyah #18 well was drilled horizontally to a total measured depth of 6,628 feet (2,020 meters) and was completed in 2,559 feet (780 meters) of gross oil bearing Lam "B" section. The interval was tested at a stabilized rate of 1,300 barrels per day of oil with less than one percent water cut, 838 thousand cubic feet per day of natural gas flowing at 220 pounds per square inch tubing pressure on a 48/64 inch choke.

The Lam "B" reservoir is located approximately 140 feet (43 meters) below the currently producing Lam "A" formation in the An Nagyah field. The An Nagyah #18 is the first commercial producing well in the Lam "B." Drilling of additional Lam "B" wells may be necessary to completely develop the reservoir.

With testing completed at the An Nagyah #18 well, the drilling rig is moving approximately 14 miles (22 km) to the northwest to drill the Hatat #1 prospect. This 6,560 foot (2,000 meters) exploration well will test a potentially fractured, granitic basement play.

Current daily production from the Block S-1 concession is approximately 11,300 gross barrels of oil per day (5,900 barrels net) and should exceed 12,000 gross barrels of oil (6,250 barrels net) by year-end 2005.