The meeting, attended by between 40 and 50 people, endorsed the blockade which began on Monday to stop AGL from drilling a further four pilot wells on a local dairy farm.

It also called on the NSW government to immediately implement a moratorium on all coal seam gas exploration until an independent scientific investigation into the environmental, economic and social impacts of coal seam gas is completed.

Barrington-Glo ucester-Stroud Preservation Alliance spokesman, Graeme Healy described the meeting as enthusiastic. "People were clamouring to add their names to the blockade roster."

Mr Healy said he acknowledged there may be people in the Gloucester area who wanted the gas but there were no dissenting voices at Wednesday night's meeting at the CWA Rooms, which was advertised and open to anyone.

"Expressions of support and offers of assistance are coming from far and wide. Many communities are now facing the prospect of having a coal seam gas field developed in their midst and they are watching events here in Gloucester with great interest."

Mr Healy said there was a common thread in the conversations.

"Ordinary, law-abiding people across the State are saying governments have failed us and we have no recourse but to take direct action to protect our water resources and farmland."

At the blockade site, AGL gave an undertaking that no attempt would be made to move gravel onto the site on Thursday and moved to commence negotiations.

"We welcome AGL's approach and we will negotiate in good faith to achieve a satisfactory outcome", said Mr Healy.

Protesters at the blockade, near the corner of Jack Road and Maslens Lane, south of Gloucester, have set up amenities tents and have a roster system in place.

Mr Healy said at any one time during the day there are 20 to 30 people there, with more dropping by to chat or bring supplies or wood for the fire. Overnight a skeleton crew of between six to eight are rostered.