TD Reached at Premier's Ca Rong Do Appraisal

TD Reached at Premier's Ca Rong Do Appraisal

Monday, April 11, 2011
Premier Oil plc

Premier announced that the CRD-2X appraisal well in block 07/03 Vietnam has been drilled to a TD of 3785 meters MDRT, appraising the Miocene sands discovered in 2009 with the CRD-1X well.

The well was deepened from the preliminary TD of 3109 meters MDRT to evaluate the Oligocene which was not tested by the CRD-1X well. Two drill stem tests of the hydrocarbon bearing sands in the Oligocene section have been conducted. The first zone tested flowed gas and condensate at rates of 9.7 mmscfd and 870 bopd respectively through a 40/64 inch choke. The second zone tested flowed gas and condensate at rates of 17 mmscfd and 1730 bopd respectively through a 56/64 inch choke.

The well will now be sidetracked to further evaluate the distribution of hydrocarbons in the Miocene sands.

Simon Lockett, Chief Executive Officer, commented, "We are encouraged by the hydrocarbon flow rates from the Oligocene section in Ca Rong Do, which in addition to the previously proven Miocene reservoirs, provide further exploration upside across the area. We look forward to the result of the sidetrack well which will provide additional data to determine the hydrocarbon distribution in this part of the Ca Rong Do structure."