Brae Central

(Marathon)

Offshore oil field in production.

Block and licence number:

16/07, P.108

Map reference:

Plate 8

Grid reference:

1° 18’ E 58° 45’ N

Licensees and company interest in block (%) at end of 2001:

Marathon Oil (UK) Ltd.

38.00

BP Exploration Operating Co. Ltd.

20.00

Talisman Energy (UK) Ltd.

14.00

Kerr- McGee Oil (UK) plc

8.00

BG International Ltd.

7.70

Burlington Resources (UK) Inc.

6.30

Lundin North Sea Limited.

4.00

Agip (UKCS) Ltd.

2.00

Date of discovery:

South accumulation: July 1977
North accumulation: May 1975
Central accumulation: March 1976

Production start:

South accumulation: July 1983
North accumulation: April 1988
Central accumulation: September 1989

Operator’s estimate of:

Recoverable reserves originally present:

South accumulation: (million tonnes) 40.00
Central accumulation: (million tonnes) 9.00
North accumulation: Condensate/NGLs: (million tonnes) 21.00
Gas: (billion cubic metres) 22.00

First year of peak production:

South accumulation: 1985
North & Central accumulations: 1990

Peak production (million tonnes per year):

South accumulation: 5.00
North accumulation: 3.60
Central accumulation: 1.20

Water depth:

South accumulation: 112m
North accumulation: 99m
Central accumulation: 107m

Gravity:

South accumulation: 33/35º API
North accumulation: 41/45º API
Central accumulation: 33º API

Sulphur content:

South accumulation: 0.64%
Central accumulation: 0.64%

Transport system:

Oil and NGLs piped to Cruden Bay via Forties. Gas exported via SAGE System to St Fergus.

Extension into other UK blocks:

16/7b, P.340

Companies as above