Santos (45%) and Quadrant (operator).
Gas and condensate production commenced from John Brookes in 2005. Production from the Halyard well in the Spar field commenced in June 2011.
Gas and condensate from John Brookes and Spar is sent by pipeline to the Varanus Island processing facility where the condensate is removed and stored and the raw gas is processed. The sales gas is then sent to mainland Western Australia via two 100-kilometre sales gas pipelines where it is then supplied to customers. Varanus Island has a gross processing capacity of approximately 400 terajoules of gas per day.
In 2015, Santos’ share of John Brookes / Spar production was 6.7 million barrels of oil.