KPIs

Centrica plcCentrica - Key Performance Indicators199920002001200220032004Turnover (m)7,2179,93312,61114,34517,93118,303Operating profit/(loss) before exceptional charges and goodwill amortisation, including share of joint ventures and associates m4245266799321,0581,227Earnings/(loss) per ordinary share (pence)4.38.48.111.411.833.0Adjusted earnings/(loss) per ordinary share (pence)7.910.212.115.216.820.0Cash inflow from continuing operations before exceptional payments (m)1,4531,1398697381,2161,234Cash (outflow)/inflow before use of liquid resources and financing (m)-69055-342-918652482

British Gas ResBritish Gas Residential- Key Performance IndicatorsH1 2001FY 2001H1 2002FY 2002H1 2003FY 2003H1 2004FY 2004Customer numbers gas (000)13,59813,45113,02512,83912,76112,59012,29411,771Customer numbers electricity (000)4,3265,3745,5925,7956,0426,1896,1915,950Customer product holdings1.421.501.501.531.601.621.641.66Turnover gas ()2,3704,0292,1763,8052,1293,7422,3374,170Turnover electricity (m)4911,1216741,3807391,5478461,731Turnover total (m)2,8615,1502,8505,1852,8685,2893,1835,901Operating profit energy (m)6919197218169136228249Operating margin energy (%)3.00.47.04.26.02.67.04.2

British Gas home servicesBritish Gas home services - Key Performance IndicatorsH1 2001FY 2001H1 2002FY 2002H1 2003FY 2003H1 2004FY 2004Customer product holdings4,4764,7905,5766,1136,4246,9067,182Customer product holdings (contracts)6,1796,592Turnover total (m)339722388810411847452943Engineering staff employed5,2115,3566,0936,2056,9817,1607,7868,033Operating profit (m)1136226141845195Operating margin (%)3.05.06.08.010.010.011.010.0

British Gas CommunicationsBritish Gas communications - Key Performance IndicatorsH1 2001FY 2001H1 2002FY 2002H1 2003FY 2003H1 2004FY 2004Customer numbers (fixed line) (000)273400371367378376390384Average minutes used per month (fixed line)357347344340366374420417ARPU (fixed line) ()11.4010.8710.4910.5211.2311.8613.0312.97Turnover (m)1437265226563162Operating profit/(loss) (m)-52-101-26-35-10-14-5-7

British Gas BusinessBritish Gas Business - Key Performance IndicatorsH1 2001FY 2001H1 2002FY 2002H1 2003FY 2003H1 2004FY 2004Customer supply points455726760899916905890883Turnover total (m)3005814749715751,1256151,200Operating profit (m)1944406543514764Operating margin (%)6.08.08.07.08.04.58.05.0

Centrica EnergyCentrica Energy - Key Performance IndicatorsH1 2001FY 2001H1 2002FY 2002H1 2003FY 2003H1 2004FY 2004Gas production volume (m therms)2,6434,2872,3444,0562,3373,8862,2113,938Gas production turnover ()6321,0335649325289195551,150Gas production operating profit ()336552290447282480284573Power generated (GWh)n/an/a3,4347,6623,7218,6684,64911,554Industrial & wholesale volumes (m therms)3,2246,2152,7255,6943,5916,0931,7783,601Industrial & wholesale turnover (m)n/a921401784460809384805Industrial & wholesale operating profit (m)5531726264-8-75Accord traded volumes gas (m therms)9,58518,5129,71320,39913,09024,5467,987Accord traded volumes electricity (TWh)n/a2937957013953Accord turnover (m)n/a3,5701,9514,3043,1216,2182,8765,909Accord operating profit (m)101615013171114Centrica Energy operating profit (m)351.0573.0336.0519.0373.0561.0287.0512.0

OnetelOnetel - Key Performance IndicatorsH1 2001FY 2001H1 2002FY 2002H1 2003FY 2003H1 2004FY 2004Customer numbers fixed line (000)n/a6687197467647937951,053Customer numbers mobile (000)n/an/an/a3662736981Customer numbers other services (000)n/a117151180203218208212Customer numbers total (000)7857858709621,0301,0841,0721,346Average minutes used per month (fixed line)277277282284309345415437ARPU fixed line ()15.9015.8516.4016.2015.6316.1816.8316.74ARPU mobile ()n/an/an/a12.7713.5814.4416.6317.90Turnover (m)65657515384178100218Operating profit/loss (m)*3.54.04.72.00.04.06.016.0Operating margin (%)5.06.06.01.30.02.26.07.0

Centrica North AmericaCentrica North America - Key Performance IndicatorsH1 2001FY 2001H1 2002FY 2002H1 2003FY 2003Customer numbers residential and small commercial gas (000)1,2501,2301,3941,3391,2521,116Customer numbers residential and small commercial electricity (000)n/an/a5751,4161,3661,318Customer numbers home and business services (000)n/an/a1,6361,6271,6541,690Turnover residential and small commercial gas (m)232433297486347531Turnover residential and small commercial electricity (m)n/an/a311895741,144Turnover home and business services (m)n/an/a3915994193Turnover gas and production energy trading (m)n/a105132284260501Turnover ()4327684991,1181,2752,369Operating profit residential and small commercial gas (m)5202116121Operating profit residential and small commercial electricity (m)-9-15-20-104087Operating profit home and business services (m)n/a06.023.010.029.0Operating profit gas and production energy trading (m)n/a6218341113Operating profit (m)2968256373130Operating margin (%)795665FY 2003FY 2004Customer numbers (year end) (000)Canada energy1,1612,129Texas energy859829Other USA energy414305Home Services1,6901,800VolumesGas production (m thms)362334Electricity generation (GWh)1,176TurnoverCanada residential energy423819Texas residential energy933744Other USA energy245191Home Services172185Business Markets126204Energy trading and wholesale470232Total2,3692,375Operating profit/(loss) (m)Canada residential energy3330Texas residential energy6060Other USA energy-21Home Services2736Business Markets34Energy trading and wholesale93Total130134Operating margin %Total North America5.55.6