Statistics Norway

Oil and gas, production and reserves

4   Fields in production. 1 January 2005
  Statfjord North Troll Vest(fase II)4 Heidrun Troll Øst(fase I)4 Gungne
Onstream 1995 1995 1995 1996 1996
Yearofdiscovery 1977 1979 1985 1983 1982
Operator Statoil ASA Norsk Hydro Produksjon Statoil ASA Statoil ASA Statoil ASA
           
Production facilities Subsea production Two floating concrete platform Tension Leg platform + seabed installation in northern segment Concrete platform Satellite to Sleipner East Subsea production.
           
Transport solution Pipeline to Statfjord C Gas piped to Troll East and then to Zeebrugge via Zeepipe. Oil piped to Mongstad Loading byous for oil. Associated Gas through Haltenpipe to Tjelbergodden. Gas for export to Kårstø. Gas piped via Kollsnes to Zeebrugge, Emden and Dunkerque. Condensate shiped to Mongstad. Pipeline to Sleipner East.
Waterdepth,metres 250-290 300-340  350  330 83
           
Initially recoverable reserves1          
Oil. Million Sm³ 39.3  233.2  175.0 - -
NGL. Million tonnes 0.9 - 2.9 30.8 1.3
Gas. Billion Sm³ 2.6 - 40.7 1 318.0 9.9
Condensate. Million Sm3 - - - 1.6 3.1
           
Remaining reserves1          
Oil. Million Sm³ 8.9 77.0 75.5 - -
NGL. Million tonnes 0.3 - 2.6 30.8 0.3
Gas. Billion Sm³ 0.9 - 33.2 1 128.6 9.9
Condensate. Million Sm3 - - - - -
           
Petoro. Per cent 30.00 56.00 58.16 56.00 -
           
Investments. Bill. NOK2, 3 7.4 66.8 61.5 70.0 1.0
1  As of 31 December 2003. Included in Initially recoverable reserves is reserves in resource classes 0, 1, 2 and 3. Included in remaining reserves is reserves in resource classes 1, 2 and 3.
2  As of 31 December 2004 in 2005-NOK.
3  Includes expected future investments.
4  Natural gas reserves and production on Troll Vest is included on Troll Øst(fase I).
Source: Royal Ministry of Petroleum and Energy, The Norwegian Petroleum Directorate.
More information:  http://www.npd.no  and  http://www.odin.dep.no/oed/engelsk/ .

Explanation of symbols