105

Vega SørBlocks and production licences

Block 35/11 - production licence 090 C, awarded 2005

Development approval 14.06.2007 by the StortingOn stream 02.12.2010 Discovered 1987Operator Statoil Petroleum ASLicensees Bayerngas Norge AS 25.00 %

GDF SUEZ E&P Norge AS 15.00 %Idemitsu Petroleum Norge AS 15.00 %Statoil Petroleum AS 45.00 %

Recoverable reserves Original Remaining as of 31.12.20103.6 million scm oil 3.6 million scm oil8.7 billion scm gas 8.7 billion scm gas0.4 million tonnes NGL 0.4 million tonnes NGL

Estimated prod. in 2011 Oil: 7 000 barrels/day, Gas: 0.65 billion scm, NGL: 0.04 million tonnes

Expected investment Total NOK 3.1 billion (2011 values)As of 31.12.2010 NOK 3.1 billion have been invested (2011 values)Main supply base Florø

Development: Vega Sør is located near the Fram field. The water depth in the area is about 370 metres. A combined PDO for Vega and Vega Sør was approved by the authorities in June 2007. The development concept is a subsea template tied to Vega. A PDO exemption for the oil zone was approved autumn 2009.

Reservoir: The reservoir contains gas and condensate with an oil zone in the upper part of the Brent Group of Middle Jurassic age. The reser-voir depth is approximately 3 500 metres.

Recovery strategy: The field will be produced by pressure depletion.

Transport: The wellstream is sent in a pipeline from Vega Sør via the subsea templates on Vega to Gjøa for processing. Oil and condensate is transported from Gjøa in a new pipeline tied to Troll Oljerør II for further transport to Mongstad. The rich gas is exported by a new pipe-line to the Far North Liquids and Associated Gas System (FLAGS) on the British continental shelf for further transport to St. Fergus.

Status: Production started in December 2010.

VeslefrikkBlocks and production licences

Block 30/3 - production licence 052, awarded 1979Block 30/6 - production licence 053, awarded 1979

Development approval 02.06.1987 by the StortingOn stream 26.12.1989 Discovered 1981Operator Statoil Petroleum ASLicensees Petoro AS 37.00 %

RWE Dea Norge AS 13.50 %Statoil Petroleum AS 18.00 %Talisman Resources Norge AS 27.00 %Wintershall Norge ASA 4.50 %

Recoverable reserves Original Remaining as of 31.12.201054.8 million scm oil 3.9 million scm oil5.6 billion scm gas 3.4 billion scm gas2.0 million tonnes NGL 0.8 million tonnes NGL

Estimated prod. in 2011 Oil: 13 000 barrels/dayExpected investment Total NOK 25.9 billion (2011 values)As of 31.12.2010 NOK 22.2 billion have been invested (2011 values)Main supply base Sotra and Florø

Development: Veslefrikk is an oil field located about 30 kilometres north of Oseberg in the northern part of the North Sea. The water depth is about 185 metres. The field is developed with two facilities, Veslefrikk A and Veslefrikk B. Veslefrikk A is a fixed steel wellhead facility with bridge connection to Veslefrikk B. Veslefrikk B is a semi-submersible facility for processing and accommodation. Veslefrikk B was upgraded in 1999 to handle condensate from the Huldra field. The PDO for the Statfjord Formation was approved on 11.06.1994. The PDO for the reservoirs in the Upper Brent and I-areas was approved on 16.12.1994.

Reservoir: The reservoirs consist of Jurassic sandstones of the Brent and Dunlin Groups and the Statfjord Formation. The main reservoir is in the Brent Group and contains about 80 per cent of the reserves. The reservoir depths are between 2 800 – 3 200 metres. The reservoir qua-lity varies from moderate to excellent.

Recovery strategy: Production takes place with pressure support from water injection, and water alternating gas injection (WAG) in the Brent and Dunlin reservoirs, and with gas circulation in the Statfjord Forma-tion. Remotely controlled completions (DIACS) are used in WAG wells.

Transport: An oil pipeline is connected to the Oseberg Transport Sys-tem (OTS) for transport to the Sture terminal. All gas is reinjected, but may be exported through the Statpipe system to Kårstø and Emden.

Status: Veslefrikk is in tail production phase. The drilling facilities will be upgraded to secure possibility for operation throughout the economical lifetime of the field. The licensees are currently working to establish a gas strategy for the field to optimise the development of the remaining oil and gas resources.

Gjøa

Vega

VegaSør

D EC

B

Oil to TrollTroll Oil Pipeline II

Olje ti l TrollOljerør ll

0

0,1

0

0,1

1995 2000 2005 2010

Vega Sør

GasOil,condensate,NGL

Mill.

scm

o.e

.

0

5

10

0

5

10

1990 1995 2000 2005 2010

Veslefrikk

GasOil,condensate,NGL

Mill.

scm

o.e

.