Map of Wallumbilla Gladstone Pipeline

APA owns the Wallumbilla Gladstone Pipeline.


The 543-kilometre (mainline) Wallumbilla Gladstone Pipeline (WGP) is a 42-inch (1.05-metre) diameter, high pressure transmission pipeline connecting gas fields in Queensland's Surat Basin and APA’s East Coast Grid to the Queensland Curtis LNG (QCLNG) export facility on Curtis Island, near Gladstone.

A diagram of the WGP can be found here, showing:

  • pipeline capacity,
  • details of receipt and delivery points,
  • key facilities connected to the pipeline, and
  • technical and physical characteristics of the pipeline.
APA Ownership



The WGP is a non-scheme pipeline

Capacity and Services

The following standard services are offered on the WGP, subject to available capacity:

  • Firm Transport
  • Interruptible Transport
  • Firm Park
  • Interruptible Park
  • Firm Loan
  • Interruptible Loan
  • Redirection
  • In Pipe Trade
  • Operational Capacity Transfer

A description of these services, including the Standard Gas Transportation Agreement (SGTA) can be found on the gas transmission services page. Further contract terms relevant to the WGP are contained in the Pipeline System Rules.

Relevant tariffs for these standard services can be found on the current tariffs and terms page.

Non-standard services or alternative terms may be available by negotiation. 

Notes on services
Firm services are available over varying terms as set out on the gas transmission services page.    

Interruptible services are only available while the pipeline is fully contracted in respect of the corresponding firm service.

APA is progressively rolling out in pipe trade and operational capacity transfer service capability on all key pipelines. APA will prioritise this service rollout in accordance with shipper demand.

Service Usage Information

Service usage information report

Service Availability Information 36-month uncontracted capacity outlook

12-month capacity outlook

Notes on available capacity

The amount of firm park or loan capacity available may be different to the amount of firm transport capacity on the pipeline that is reported in the 36-month uncontracted capacity outlook.

Policies, Procedures and Requirements

Metering and Measurement

Metering and Measurement obligations are outlined in APA’s SGTA and the Pipeline System Rules.

Gas Specification

The required Gas Specification for the WGP is available in the Pipeline System Rules. APA will measure and/or monitor gas quality in accordance with its relevant obligations under contract. Quality obligations are outlined in APA’s SGTA.

Credit support

APA has minimum credit support requirements that are a pre-condition to gaining access to pipeline services. APA’s credit support requirements are set out here.


If you are interested in acquiring services for this pipeline, you can contact us on 07 3323 6110 to discuss your requirements. Alternatively, you may wish to email us at

We encourage potential customers to contact APA early when considering their gas supply and transport needs. Early discussion of needs improves the likelihood that APA can tailor services to meet them.

Formal Access Request

For APA’s non-scheme pipelines, you have a right to make a Formal Access Request pursuant to Rule 559 of the National Gas Rules. Lodging a Formal Access Request triggers a formal process of Access Offer and information exchange between APA and the potential customer. Details are in APA’s User Access Guide.

Potential customers do not have to submit a Formal Access Request to gain access to an APA pipeline.

You may also make a Formal Access Request pursuant to Rule 559 of the National Gas Rules by completing in full the relevant User Access Request Form for this pipeline and emailing it to