Origin said the Spring Gully field, near Roma, Queensland, was now supplying one quarter of Queensland's natural gas needs.

The plant is the third to be commissioned at the Spring Gully field and the company said the plant would allow further development of the gas resource in the southern end of the Spring Gully field.

"By bringing the Taloona plant onstream we are delivering a further 36 terajoules per day in production capacity, bringing our total daily production capacity to about 150 terajoules," Origin Upstream executive general manager Paul Zealand said.

Taloona was constructed as part of the $250 million phase five Spring Gully development carried out by Origin, and is the first plant to be built on land not owned by APLNG.

"This plant is a great example of what can be achieved when energy companies and landowners work together," Zealand said.

He also said the connection of the plant to the Spring Gully to Wallumbilla gas pipeline without having to interrupt gas flow through the main pipeline was a major achievement for the project team.

Taloona was officially opened by Queensland Energy Minister Stephen Robertson on Wednesday.

The first phase of the Spring Gully development began in June 2005. There are now more than 400 kilometres of gas and water-gathering pipelines, and about 160 field wells feeding gas to the three processing plants.

Gas from Spring Gully is supplied to customers in Queensland and New South Wales via the Wallumbilla gas hub east of Roma.