The East Flour Bluff currently contains a 3P reserve of 23 billion cubic feet of recoverable gas, but has a further 44BCF potential in Frio Massive, J and K sands following exploration at two wells, said the companies.

Currently targeting a total 31BCF of recoverable gas in the lower Frio J and K sands, the EFB D-24 has indicated untapped potential in the Miocene and upper Frio sands to be followed up in another drilling phase.

The Frio J99 and J90 intervals were perforated and joined to flow a combined rate of 1.8 million cubic feet of gas per day, with 29 barrels of condensate oil.

Joint venture operator, Texas Crude Energy, will carry out further testing to improve flow before testing sands up hole Frio J177, which has strong water drive and would not be joined with the previous flows, said Sun Resources.

Meanwhile, the EFB E-10 well, which tested the remaining 36BCF potential of recoverable gas in the shallow Frio Massives sands, has targeted and successfully intersected the primary sands. It has also indicated further untapped potential in Miocene age sands, which will be followed up in another phase of drilling.

EFB E-10 will replace the EFB E-9 well, which was junked and abandoned before it came onto full production.

To complete phase one of the redevelopment program, re-completions to follow on from EFB E-10 are planned on the EFB D-9, D-13, D-17 and D-19 wells.

Participants in the project are: US Private Investor Companies (50%); Sun Resources (16.67%); Victoria Petroleum (16.67%) and Aurora Oil & Gas Limited (16.67%).