AGL has wound up hydraulic fracturing at its Waukivory site near Gloucester after a five week exploration program.

Four wells were fracked at depths ranging from 371 metres to 965 metres during the pilot.

The company says preliminary analysis of groundwater and surface water on the site shows no environmental impact from the program.

There have been numerous arrests at the site as protesters sought to highlight the risk to the environment.

But AGL's Mike Moraza said the company also received a lot of support from the community.

"We probably had just as many supporters if not more than some of the people who were opposed to some of the things we were doing," he said.

"Just going to the motels there's a no-vacancy sign up at every motel in Gloucester.

"Businesses are doing very well.

"So yes, there is a swell of support but i will say there are still some people who are opposed to our activities."