Queensland's LNG plants are never likely to be fully utilised and two trains may shut down by 2025 due to failing coal seam gas reserves, EnergyQuest has warned.

Barossa would produce Australia's dirtiest LNG and if other companies will not back it Santos has a very expensive problem.

WA workers at the $63b Ichthys project off the Kimberley are in danger because of serious electrical faults that could ignite any gas that escapes, damning internal papers show.

Shell's giant $US17B Prelude floating LNG is late, expensive, dirty and so far unreliable. A failed investment for Shell, a terrible deal for Australia.

Cost, climate concerns & delay killed Woodside's Browse LNG project and now it must negotiate with the North West Shelf partners to develop Scarborough.

Chevron's slice of the North West Shelf LNG project is touted as ideal for infrastructure investors. It is the opposite: risky, complex & dysfunctional.

If Scarborough, considered the most economic of Woodside's two projects, was uncompetitive before LNG prices crashed then plans will have to change.

Chevron's problems at Gorgon LNG from faulty welds years ago in a South Korean factory continue with delays to repairing the first of three trains.

Chevron has been denied a two-year free pass on Gorgon greenhouse gas emissions by the WA Government that could cost it more than $80 million.