COMPOSITIONAL DATA : GAS : GAS PROPERTIES Puffin Fm RFT ...

APPRAISAL AND DEVELOPMENT DRILLING :Cassini-2 was drilled below the oil/water contact and outside structural closure due to inaccuratevelocity modeling. Minor residual hydrocarbons were noted over the interval 1,462 – 1,527 mKB withinthe Triassic in Cassini-2.RESERVES:Initial Oil: 56.6 MMbbls (includes Challis)Remaining Oil: 2.6 MMbbls (at end 2001)Source: Northern Territory Department of Business Industry and ResourceDevelopment, 2002.REMARKS:At date of publication, the Cassini accumulation was held under Production License AC/L3.Cassini forms part of a joint development with the nearby Challis oil field. Production is via sub-seacompletions connected to an FPSO.STRATIGRAPHY (Cassini-1) :AGE UNIT FORMATION TOP(mKB)TERTIARY WOODBINE Undifferentiated 116.0GROUP Hibernia Formation 422.0CRETACEOUS BATHURST ISLAND GP Undifferentiated 1070.5TRIASSIC SAHUL GROUP Undifferentiated 1405.0