Hydraulic fracture stimulation (commonly referred to as “fraccing” or “fracking”) is a technique used to improve the flow of natural gas from a well. Water, sand and a small amount of chemicals are pumped into a well and down into the coal seam at high pressure to open up fractures in the coal. The sand remains in the fractures to hold them open, allowing more gas to flow, and the fluid is pumped back out of the well. The technique has been safely used throughout Australia for over 40 years.

Santos has no plans to use hydraulic fracture stimulation as part of the Narrabri Gas Project. We are not seeking approval for its use as part of the Narrabri Gas Project EIS.

Due to the geology of the coals in the Project area, we do not believe the technique will increase gas flows in the coal seams we are targeting.