The Norwegian Experience

1. The Norwegian Experience 30+ Years of Oil Productionfrom the Norwegian Continental Shelf Eric MathiesenPrincipal EngineerResource Analysis GroupNorwegian Petroleum Directorate

2. Oil production from the NCS TOPICS Introduction Resource Classification Reserve and Resource Growth Exploration Results Increased Oil Recovery Future Oil Production

3. Well status: • 1022 exploration • 733 wildcats • 289 appraisal • 2017 production • Field Status: • 42 producing fields • 7 fields approved • 12 fields with ceased production

4. Resource Classification

5. SPE/WPC/AAPG 2000 NPD Resource class Category Description PRODUCTION Sold 0 Sold and delivered RESERVES 1 In production proved proved proved plus 2 F Approved for Reserves plus probable development A probable plus 3 F Decided for ( R ) possible development A CONTINGENT RESOURCES 4 F Planned for development Low Best High A estimate estimate estimate 5 F Development likely Contingent but undecided A 6 Development not resources very likely ( C ) 7 F Not yet evaluated Unrecoverable A PROSPECTIVE RESOURCES 8 Prospects Undiscovered Low Best High 9 Leads and plays resources estimate estimate estimate ( P ) Unrecoverable

6. Resource account per Dec. 31st, 2001

7. Original recoverable oil resources from the Norwegian Continental Shelf • 6,8 billion Sm3 • Produced: 1/3

8. Evolution of STOOIP 12000 12000 STOOIP Reserves 8000 8000 ) ) 3 3 Oil (million Sm Oil (million Sm 4000 4000 0 0 1967 1969 1971 1973 1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001

9. Evolution of STOOIP & resources 12000 12000 STOOIP Resources IOR 50 % 8000 8000 ) ) 3 3 Oil (million Sm Oil (million Sm 50 % 4000 4000 0 0 1967 1969 1971 1973 1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001

10. Oil Resource Growth - NCS Remaining oil volume 2001:30 % larger than same volume in 1990,despite production of 1,8 billion Sm3 oil from 1990 to 2001. New resource classification system

24. Norwegian Oil Production

25. Norwegian Oil Production