07 Borders & Southern Petroleum plc Annual Report & Accounts 2014 www.bordersandsouthern.com  STRATEGIC  REPORT DIRECTORS’  REPORT F INANCIAL  S T ATEMENTS Main Darwin reservoir Additional reservoir interval FLOW  LINES DARWIN WEST SUBSEA MANIFOLD (DWM) DARWIN EAST SUBSEA MANIFOLD (DEM) FLOW  LINES DARWIN FPSO PRODUCTION XTREE 1 GAS INJECTION XTREE  GAS INJECTION XTREE  GAS INJECTION XTREE  GAS INJECTION XTREE  PRODUCTION XTREE 2 PRODUCTION XTREE 3 PRODUCTION XTREE 1 PRODUCTION XTREE 2 PRODUCTION XTREE 3 Potential Development Concept Sub-surface developments PRODUCTION WELLS 6 GAS RE-INJECTION WELLS 4 INITIAL PRODUCTION RATE 56,000 BOPD The reprocessed 3D seismic data has  provided greater definition of the reservoir  interval, allowing increased confidence in  the resource estimates. A seismic  inversion study has identified additional  potential hydrocarbon bearing sands not  encountered in the discovery well.  West to east seismic line through the Darwin East  well location displaying VpVs ratio inversion data.  The Darwin reservoir interval penetrated by the well  is clearly highlighted along with a newly identified  additional potential reservoir interval.  Management unrisked P50 estimate of wet gas in-place Management unrisked P50 estimate of recoverable condensate 360 MMbbl 3.5 tcf A screening feasibility study has highlighted  that a development is technically feasible  using proven technology. The development  concept comprises subsea wells, FPSO with  processing and gas re-injection capability  along with condensate storage.