Map of Carpentaria Gas Pipeline

APA owns and operates the Carpentaria Gas Pipeline, an important link in our East Coast Grid.


The Carpentaria Gas Pipeline (CGP) is a transmission pipeline system that includes:

  • An 840-kilometre scheme pipeline between Ballera in southwest Queensland and Mount Isa. It includes the Mica Creek metering facility and the 6-kilometre Mount Isa Lateral.
  • A 96-kilometre non-scheme pipeline connected to the CGP, called the Cannington Lateral.

The CGP is also an important link between Northern Territory gas fields and the east coast market via the Northern Gas Pipeline.

A diagram of the CGP and Cannington Lateral can be found here, showing:

  • Pipeline capacity.
  • Details of receipt and delivery points.
  • Key facilities connected to the pipeline.
  • Technical and physical characteristics of the pipeline.
APA Ownership


Regulatory Status

The CGP mainline is a scheme pipeline under the access regime of the National Gas Law and the National Gas Rules, and provides light regulation services.

The Cannington Lateral is a non-scheme pipeline and has been granted a category 3 exemption (average throughput less than 10TJ/day) from aspects of Part 23 information disclosure.


Australian Energy Regulator

Next Regulatory Review

Not applicable. Light access regulation has no explicit review dates.

Capacity and Services

The following standard services are offered on the CGP and Cannington Lateral, 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.

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

Non-standard services or alternative terms may be available by negotiation, subject to the service provider’s statutory obligations regarding price discrimination. 

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.

Service Availability Information

A 12-month outlook of available firm capacity for this pipeline is published on the Natural Gas Services Bulletin Board.

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 12-month outlook of available firm capacity.

Receipts off the SWQP into the CGP will require third party compression services at Ballera.

Policies, Procedures and Requirements

Metering and Measurement

Metering and Measurement obligations are outlined in APA’s SGTA (East and Central), and for this pipeline are set out here.

Gas Specification

APA requires the Gas Specification or any other quality to comply with the relevant Australian Standard (AS 4564). APA will measure and/or monitor gas quality in accordance with relevant obligations under contract. Quality obligations are outlined in APA’s SGTA (East and Central).

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 make an enquiry by emailing us at [email protected].

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

Potential customers do not have to submit a Formal Access Request to gain access to an APA pipeline. If you are interested in acquiring services for this pipeline, you can contact us at the contact details above to discuss your requirements.

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.

You can make a Formal Access Request by completing in full the relevant User Access Request Form for the Cannington Lateral and emailing it to [email protected].

APA Financial Information Disclosure – Part 7 National Gas Rules

APA is reporting financial information for its pipelines that are subject to light regulation according to AER’s Financial Reporting Guideline for Light Regulation Pipelines. The financial information for the years ending 30 June 2020 and 2021 includes pipeline financial information, the value of the capital base using the AER regulatory valuation methodology, and the weighted average price for services on each of these pipelines.

Interested parties should read APA’s Basis of Preparation together with the completed financial information template that was developed by the AER.

Basis of Preparation
CGP 2021 Part 7 Financial Reporting
Supporting Forward Roll Models:
CGP FY97–FY06 Roll Forward Model
CGP FY07–FY16 Roll Forward Model
CGP FY17–FY21 Roll Forward Model

CGP 2020 Part 7 Financial Reporting
Supporting Forward Roll Models:
CGP FY97–FY06 Roll Forward Model
CGP FY07–FY16 Roll Forward Model
CGP FY17–FY20 Roll Forward Model

Standard OTSA – Part 24 National Gas Rules 

Standard OTSA
CGP Specific Terms
Facility Details referred to in clause 2 of the Facility Specific Terms