The Tubridgi Pipeline System (TPS) is a transmission pipeline system located in north-west Western Australia. It is owned by the DBP Development Group (DDG), which is a subsidiary of the Australian Gas Infrastructure Group (AGIG).
The TPS consists of two pipelines: the Tubridgi Pipeline (TP) and the Griffin Pipeline (GP). Both pipelines (the TP and GP) are 87 km in length. They run parallel from the Tubridgi gas processing facility to Compressor Station 2 on the Dampier to Bunbury Natural Gas Pipeline (DBNGP). The pipelines have been refurbished and are used as part of the Ashburton to Onslow Gas Pipeline System.
The TP is currently a non-scheme pipeline system, and is subject to the access regime for non-scheme pipelines under Chapter 6A of the NGL and Part 23 of the NGR.
In May 1999, Boral Energy submitted an application to the NCC for the revocation of coverage under the Gas Code with respect to the TP. In August 1999, the WA Minister for Energy (being the relevant minister) revoked coverage of the pipeline following the NCC’s recommendation. In November 2005, BHPPAO submitted an application to the NCC for the revocation of coverage under the Gas Code with respect to both the TP and the GP. In April 2006, following a recommendation from the NCC, the relevant minister decided to revoke coverage of the TP and the GP (the entirety of the TPS).
The TPS was constructed in 1991 by the Tubridgi Joint Venture (TJV, consisting of Boral Energy, SAGASCO, Pan Pacific Petroleum and Tubridgi Petroleum) to transport gas from the Tubridgi gas field to the DBNGP. The GP was constructed in 1994 under an agreement between the TJV and the Griffin Joint Venture (GJV, consisting of BHP Billiton Petroleum (Australia), Mobil Exploration and Producing Australia and Inpex Alpha) to transport associated gas from the offshore Griffin oil field via the Griffin Gas Plant to the DBNGP. In 2001, the use of TP ceased as the TJV transported its gas along the GP. The TJV ceased producing gas from the Tubridgi gas field in 2004.