Landowners in Papua New Guinea's Gulf province say they've begun an action to shut down the Papua LNG gas project.
Baimuru landowners are unhappy with the developer, French company Total, over non-renewal of landowner company contracts at the project site and other issues.
Baimuru is the location of the fledgling project's gas wellheads, which landowners say they will block access to as part of their protest.
The landowners are demanding the Department of Petroleum and Energy intervene as soon as possible to intervene.
They seek a recognition of their rights to engage in and benefit from spin-off benefits and contracts from the $US13 billion project.
The Landowners were expected to hold a press conference in Port Moresby on Wednesday afternoon to announce the shutdown and their demands.