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Exploration Co. Success Rate: Nine for Nine

Exploration Co. Success Rate: Nine for Nine

The Exploration Company (TXCO) is on a roll in Southwest Texas with another high producer, its ninth consecutive successful natural gas well in the Prickly Pear (Glen Rose) Field west of San Antonio, near the Mexican border.

The Paloma "E" No. 1-52 tested at up to 2.1 MMcf/d and 47 barrels of condensate with a flowing tubing pressure of 1,825 psi. Estimated absolute open flow was 34 MMcf/d. "The well encountered 80 feet of Glen Rose reef that appear to be gas productive," said Exploration Company President James E. Sigmon. Previous wells tapped between 40 and 80 feet of gas-producing reef and individual wells are producing up to 3 MMcf/d.

"We're being conservative in how we produce these wells," said spokesman Roberto R. Thomae. "We're careful how we pull them so that we don't get water. Water is a problem here and we don't want to damage the reservoir." He estimated the wells would produce over five to seven years, although he pointed out the company has only three to four years experience with the formation and is "on a continuing learning curve."

The wells are coming in at around 5,000 feet. "I would say they're intermediate zone. This formation is coming in deeper in East Texas, but we seem to be in an upthrown area." He said the wells cost only $400,000 to drill "which makes payback pretty quick at 2 MMcf/d."

TXCO has used new 3-D seismic data to pinpoint the reservoir and tap in without hitting water. The Field is located in Maverick County and is served by Aquila Pipeline on one side and West Texas Gas on the other.

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