The Combabula Spur Line is a transmission pipeline located in Central Queensland. The spur line is owned by Australia Pacific LNG (APLNG), which is a joint venture between Origin Energy, ConocoPhillips and Sinopec. The pipeline is one of four high pressure gas pipelines which would form the Western High Pressure Gas Network (Western HPGN).

The Combabula Spur is approximately 17 km in length, with a diameter of 450 mm, and a capacity of 236 TJ/day.

The Combabula Spur Pipeline connects the Combabula gas plant facility to the Reedy Hub.

The Combabula Spur Line is currently a non-scheme pipeline, and is subject to the access regime for non-scheme pipelines under Part 10 of the National Gas Rules (NGR). It was previously subject to the access regime for non-scheme pipelines under the former Part 23 of the NGR, which was replaced by Part 10.

The AER has granted the following exemptions for the Combabula Spur Line:

• On 26 February 2018, a five year Category 1 and Category 2 exemption under Part 23 of the NGR.
• On 30 November 2022, a five year Category 1 and Category 2 exemption under Part 23 of the NGR. Due to reforms to the NGR, the exemptions transitioned to a Category 1 exemption under Part 10 of the NGR.