JERA warned that Australia was sending mixed messages on support for the sector while the US and the Middle East charged ahead as reliable suppliers with far shorter project approval times.
Ms Tomkinson said the government could not behave as if Australian had a monopoly on LNG exports.
“The six-plus years the NWS project extension has spent waiting for environmental approval is a flashing red light for investors and trading partners who are growing increasingly concerned about Australia’s future standing as a stable, affordable and reliable supplier of gas,” she said.
“After already delaying its determination, it is imperative the federal government hand down a decision by March 31 to provide certainty for the businesses involved.”
Woodside chief executive Meg O’Neill has said she is “beyond frustrated” with delays in approving an extension for the company’s NWS operations and has warned the dithering threatens drilling for much-needed domestic gas.
Opposition resources spokeswoman Susan McDonald said JERA’s comments confirmed that the government was squandering Australia’s hard-earned reputation as a reliable trading partner.
Ms King defended the government’s record on energy policy, saying it was taking “measured steps” to shore up gas supply.
“We have halved Environmental Protection and Biodiversity Conservation Act decision-making timeframes because we hired more public servants to assess the approvals backlog,” a spokesman for Ms King said.
Woodside last year secured WA approval to extend the NWS operations, a decision that took more than six years, but still requires a federal tick.
WA Premier Roger Cook last month took aim at “nerdy little bureaucrats in Canberra” after Ms Plibersek again delayed her decision on the extension.
Woodside shares closed down 2.1 per cent at $22.70.
The stock has tumbled 7.7 per cent since the start of the year.
By comparison, Santos, which rose 0.16 per cent to $6.17 on Wednesday, is off 7.6 per cent since the start of January.