You are using an outdated browser. Please upgrade your browser to improve your experience.
Skip to content
Information for shareholders regarding Santos’ 2020 Annual General Meeting click here

Barrolka Field Complex: Coolah 1


Santos Ltd, as Operator for the Southwest Queensland Unit, announces a gas flow from Coolah 1, a gas exploration well in ATP 259P, Queensland. A gas flow of 58,050 cubic metres per day (2.05 million cubic feet per day) was recorded on an open hole flow test.

The flow test was conducted at a depth of 2586m and tested the open hole section from 2555m to 2586m in the Permian Toolachee Formation. The flow was recorded through a 13mm (1/2) surface choke.

Coolah 1 is located 12 km south east of Barrolka 1 and some 50 km north of the Queensland Gas Centre, Ballera.

Coolah 1 is the sixth well to be drilled to assess the size and deliverability of the Barrolka Field Complex.

Commenting, Rod McArdle, General Manager – Queensland & Northern Territory said:

The results of the successful Barrolka 3 and Beeree 1 wells, announced in October 1996 and July 1997 respectively, suggested a possible resource of several hundred billion cubic feet of gas associated with the Barrolka Field Complex. Coolah 1, which addresses a separate sub-structure, builds on these encouraging results. The Joint Venture will now drill a further sub-structure, Barrolka Northeast, in order to further assess the resource associated with the Barrolka Field Complex.

The participants in the Coolah 1 well are:

  • Santos Group 58.8625%
  • Delhi Petroleum Pty Ltd 23.2%
  • Boral Energy Resources Ltd 16.5%
  • Gulf Australian Hydrocarbons Ltd 1.2%
  • Oil Company of Australia Ltd 0.2375%