reVieWof reserVes In 2010, ARC added 108 mmboe of P+P reserves, replacing 502 per cent of its annual production of 27 mmboe, primarily  from internal development  activities. Our corporate  reserves increased by 29 per cent on a P+P basis to 487 mmboe and 25 per cent on a proved basis to 336 mmboe over 2009.  This growth was achieved at an all-in annual FD&A cost  of $9.21 per boe excluding  FDC for P+P reserves. This brings ARC’s three year  average FD&A cost excluding  FDC down to $8.60 per boe. ARC’s P+P F&D costs were  $6.47 per boe in 2010. ReseRves As oF DeCeMbeR 31, 2010  (MMboe) pRoveD pRoDuCInG  213 104 MMboe lIQuIDs  652 bCF GAs totAl pRoveD  336  124 MMboe lIQuIDs  1,274 bCF GAs pRoveD plus pRobAble  487  166 MMboe lIQuIDs  1,925 bCF GAs 15.2 YeAR ReseRve lIFe InDeX 22 10 ARC ResouRCes AnnuAl  report