Dubbo Regional Council has reconfirmed its opposition to CSG in response to the defeat of a bill in NSW parliament calling for an end to CSG exploration in the state.

The councillors present at Monday night's meeting voted unanimously to say CSG was not welcome.

Cr Ryan said said he thought council's opposition to CSG should be at every council meeting to ensure it was in the forefront of community debate.

"It really is playing Russian roulette with your water supplies. If you've got a revolver with six chambers and a bullet in it, eventually at some stage that gun is going to fire," said Cr Ryan.

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"I think this is something we need to be resolute on, but we also need to be consistent in our opposition."

Dubbo MP Dugald Saunders was among those who voted against the bill in parliament.

Councillor Greg Mohr said it was "disgraceful". He said members of the community were "very upset and extremely annoyed" that Mr Saunders supported CSG.

But Mr Saunders said he would be happy to see all remaining Petroleum Exploration Licences extinguished, with the exception of the one at Narrabri.

"From the very start my statement has been that apart from the Narrabri coal seam gas project, which is in the planning, I would be happy to see all Petroleum Exploration Licences extinguished across the state," Mr Saunders said.

"That's what I have said from day one, and that is what I have maintained all the way through. I haven't changed from that, I haven't deviated at all."

The closest CSG exploration to Dubbo is in the Pilliga.

Deputy mayor Stephen Lawrence said the Santos project was going to last for 20 years and involve 850 CSG wells.

"Anyone who knows anything about CSG, regardless of what side of the debate they're on will tell you this has implications for our area," he said.

Cr Lawrence said if the Santos project was seen as acceptable than CSG exploration was going to expand to this region.

He also expressed his disappointment that Mr Saunders didn't "fight tooth and nail to oppose [CSG] within the National Party and within the government" as he promised before the election.

"I don't think anyone who followed the debate in the State Parliament recently thinks Dugald has fought tooth and nail on it at all," Cr Lawrence said.

The councillors first voted to state their opposition to CSG in 2018. Of the 661 responses to council's online poll at the time asking if CSG should be extracted in the region, 94 per cent said 'no'.