Adelaide-based energy giant Santos is poised to relocate hundreds of staff interstate, 7NEWS can reveal.

Sources have confirmed that the state’s largest gas producer has offered positions in Brisbane to staff at the Cooper Basin Gasfields.

7NEWS understands that is where the company’s major operations will be run.

The decision will strengthen ties to the company’s liquefied natural gas export facility in Queensland.

Santos is South Australia’s largest gas producer. Credit: 7NEWS

Some workers have been reportedly asked to sign confidentiality agreements in a bid to prevent the news from leaking.

Up to 200 staff, many of which are based at Santos’ Flinders Street Headquarters, are expected to be relocated or made redundant.

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A final decision was initially expected to be made within a fortnight but could be made official in the coming days.

The company is one of the South Australia’s largest corporate citizens, but the state government says it was unaware of any movements as of Friday afternoon.

In a statement to 7NEWS, Santos confirmed some positions now based in Adelaide will move to Brisbane and others will move from Perth and Brisbane to Adelaide, but says there will be no reduction in the company’s net jobs in South Australia.