Prospectus re Admission to the Official List - Heritage Oil

The Group’s net share of outstanding commitments at 30 September 2007 were estimated at:Less thanAfterPayments Due by Period Total 1 year 1 - 3 years 4 - 5 years 5 years$ Thousands $ Thousands $ Thousands $ Thousands $ ThousandsLong-term debt ................. 17,662 617 1,234 8,334 7,477Convertible bonds ............... 158,000 — — 158,000 —Operating leases ................ 9,642 229 458 458 8,497Other long term obligations ........ 140,000 40,000 100,000 — —Work programme obligations ....... 124,759 58,236 52,259 14,065 200Total contractual obligations ........ 450,063 99,082 153,951 180,857 16,174The Group’s net share of outstanding commitments at 31 December 2006 were estimated at:Less thanAfterPayments Due by Period Total 1 year 1 - 3 years 4 - 5 years 5 years$ Thousands $ Thousands $ Thousands $ Thousands $ ThousandsLong-term debt ................. 8,212 147 294 294 7,477Convertible bonds ............... 60,000 — — 60,000 —Operating leases ................ 9,642 229 458 458 8,497Work programme obligations ....... 16,750 10,000 4,875 1,875 —Total contractual obligations ........ 94,604 10,376 5,627 62,627 15,974The Group’s net share of outstanding commitments at 31 December 2005 were estimated at:Less thanAfterPayments Due by Period Total 1 year 1-3 years 4-5 years 5 years$ Thousands $ Thousands $ Thousands $ Thousands $ ThousandsLong-term debt ................. 7,768 248 246 246 7,028Capital lease obligations ........... — — — — —Operating leases ................ 2,659 217 434 434 1,574Purchase obligations .............. — — — — —Other long-term obligations ........ 875 588 287 —Work programme obligations ....... 19,350 16,950 2,400 —Total contractual obligations ........ 30,652 18,003 3,367 680 8,602The Group’s net share of outstanding commitments at 31 December 2004 were estimated at:LessthanAfterPayments Due by Period Total 1 year 1-3 years 4-5 years 5 years$ Million $ Million $ Million $ Million $ MillionWork programme obligations .................. 7 2 3 2 —At 31 December 2004, (save for exploration work commitments included in certain of its explorationpermits) the Group did not have any material contractual obligations, lease obligations or commercialcommitments outstanding.156