Liberals want more detail before revealing their position on a gigantic proposed park to protect koalas that coalition partner the Nationals have panned.
Uncertainty remains about the park's future, hinging on an approval to generate carbon credits, despite the NSW government's much-trumpeted announcement.
Two separate motions have passed NSW parliament in support of the mammoth conservation project, paving the way for legislation to establish the park.
The Great Koala National Park is slated to protect more than 12,000 koalas, about 36,000 greater gliders and more than 100 other threatened species.
It is also hoped to boost regional tourism and generate carbon credits.
Treasurer Daniel Mookhey has told parliament generating credits, if approved by the federal government, is a "potential long-term income source".
Credits would be of interest to "many major emitters" across the state and could generate between $200 million and $300 million, Premier Chris Minns said on Thursday.
"Why wouldn't we pursue it?" he said in parliamentary question time.
The federal climate change department has not responded to AAP's request for an update on the park's credits.
Opposition leader Mark Speakman on Thursday defended his party abstaining from voting on motions supporting the park.
The government had not provided enough detail and had not yet secured federal co-operation with its plans, he said.
"When we see legislation, when we get the detail, then we will form our position," Mr Speakman told reporters.
The party had an "in-principle position" to support expanding national parks to protect koalas.
But hundreds of timber jobs will be chopped, angering coalition partners in the Nationals.
Some 176,000 hectares of state forest will be connected to existing national parks to create a reserve - twice the size of the Blue Mountains National Park - on NSW's north coast in proposed outlines of the park released on Sunday.
The government has promised support for out-of-work timber workers but the announcement has been heavily criticised by the Nationals, the Shooters, Fishers and Farmers party and the timber industry.
Shooters MP Mark Banasiak slammed the government's Sunday announcement coinciding with Father's Day as "tone deaf ... obnoxious and insensitive".
"The cost for timber towns are immediate and measurable," he told parliament.
"That's not environmental stewardship, that's outsourcing your conscience."
Almost a quarter of the region's timber mills paused operations on Monday under a temporary moratorium following the announcement of the park's proposed boundaries.
Nationals leader Dugald Saunders said the government's 10-week financial support package to affected workers was "farcical" and not enough to stem the economic fallout from the moratorium.
"The government needs to do better to help the many other industries and workers who are at risk of losing their livelihoods," he told AAP.
Mr Minns said the debate around the park highlighted "massive divisions" in the coalition, which had split over koala policy several times since 2020.
"I can be critical about the National party, but at least they've turned up," Mr Minns told parliament.
