Woodside Energy Group Ltd. and officials representing workers at some of its liquefied natural gas facilities failed to reach agreement on issues that could trigger strikes, increasing the threat of disruptions to global exports.

Discussions on Tuesday over demands around pay and other conditions by staff at the North West Shelf LNG operations in Western Australia failed to reach any consensus, the Offshore Alliance, which includes two key labor unions, said in a Facebook post on Wednesday.

“Woodside are well off the pace on key bargaining issues including job security and remuneration,” the alliance said. The producer’s “actions and bargaining position at yesterday’s meeting will determine the destiny of our bargaining campaign.”

A spokesperson for Woodside didn’t immediately respond to a request for comment. The Perth-based company has previously said it was aiming to “work constructively” with employees to resolve issues.

Woodside’s shares fell as much as 1.4% in Sydney trading, trimming an advance this year to about 8%.

Read More: European Gas Spikes on Market Jitters Over LNG Strike Risk

Benchmark European natural gas futures closed 13% higher Tuesday as traders weigh the prospect of disruptions against weak demand and high storage levels in the region. Outages at the Woodside operation and at Chevron Corp. sites, where workers are also considering industrial action, could put about 10% of global LNG supply in jeopardy, according to Goldman Sachs Group Inc.

While Europe rarely buys Australian LNG, it would need to compete with other countries in Asia for replacement shipments. The Dutch benchmark is still more than 80% below the records reached last year in the wake of Russia’s invasion of Ukraine.

Chevron will delay plans to sell some spot market cargoes from its Gorgon operation as a result of the strike risks, people familiar with the details said Tuesday. The producer declined to comment on the sales, and on details on any planned talks with union leaders.

About 150 Woodside workers voted for potential action that would include stoppages of between 30 minutes and fours hours, and actions such as refusing to unload cargo other than food, water or medical supplies. They would also stop restarting process gas compressors or generators, and wouldn’t facilitate helicopter landings.

Workers at Chevron’s Gorgon and Wheatstone downstream facilities must complete a separate vote on action by Aug. 24, while Australia’s Fair Work Commission on Monday authorized union officials to ballot members at the Wheatstone offshore platform. Votes need to be completed no later than 10 days after a ballot order is made.

Industrial action must start within 30 days of a completed ballot, unless the commission grants a request for an extension. A union needs to give seven days’ notice before that industrial action begins.