L1H permit, Carnarvon Basin, offshore Western Australia, approximately 140 kilometres west of Dampier and 88 kilometres north of Onslow.
Chevron – (operator)
Santos – 28.57%
The Barrow Island field was discovered in 1964 by the Barrow 1 exploration well.
Production commenced in 1967.
Santos has participated in the Barrow Island oil fields since 2000 when it acquired its interests from Shell Development (Australia) Pty Ltd.
Barrow Island is approximately 30 kilometres long and 10 kilometres wide and less than 75 metres above sea level.
Oil is produced from approximately 420 wells with a further 208 wells acting as water injectors. Oil is collected at eight gathering stations which is then stored in a one million barrel storage facility on the island and exported via an offshore tanker mooring.
Also within the Barrow Island lease is the undeveloped Biggada gas resource.