UPDATE 1-GeoPark says successfully drills new gas well in Chile

* Says Pampa Larga 15 well flowing at 4 mmcfpd * Says well to help co double output this year (Adds details)

Dec 4 (Reuters) - Latin American oil and gas company GeoPark Holdings Ltd (GPK.L) said on Friday it successfully drilled and tested a new development gas well in Chile.

The AIM-listed company said the Pampa Larga 15 well, located on the Fell block and drilled to a depth of 2,900 metres, is flowing at a rate of about 4.0 million cubic feet per day (mmcfpd) of gas.

"The successful Pampa Larga well will help GeoPark achieve its targeted doubling of production this year," Chairman Gerald O'Shaughnessy said in a statement.

Pampa Larga 15 represents the seventh successful well drilled by GeoPark in 2009, the company said, adding that it was carrying out a 10-well drilling program on the Fell block.

Geopark shares were indicated down 0.8 percent at 325 pence at 0749 GMT. (Reporting by Tresa Sherin Morera in Bangalore; Editing by Vinu

Source: reuters.com/