Sussex Police have begun to reduce their presence at the protests in Balcombe after four months of demonstrations.
Hundreds of activists protested in Balcombe against the drilling site opened by energy company Cuadrilla, who have now left the area.
No Dash for Gas, who organised the camp protests, said they would continue to support the people of Balcombe and return in the future.
Protesters believe the drilling could lead to fracking, which they claim imposes risks to the environment such as earthquakes.
Many officers and staff had worked longer shifts or cancelled days off and the force had called on mutual aid from the rest of the UK.
We have known this would be a long-running policing operation and, while we are scaling down, we still expect to need a presence at the site for a number of weeks."
More top news
More than 1,200 people have come together in Wiltshire to break the World Record for 'The World’s Largest Live Nativity'.
A protest has taken place against planned closures of libraries in Swindon. The council wants to save £1.5million from its libraries budget
Olympian Sam Quek has been voted out of 'I'm a Celebrity' narrowly missing out on the final which takes place tonight.