The Sussex Wildlife Trust claims that insufficient consultation and surveys were carried out before oil drilling started at Balcombe.
The charity says the ancient woodland surrounding the site in West Sussex could be home to a number of species of woodland birds, bats and dormice and their habitat is potentially being disrupted while exploration takes place.
More top news
Friday morning's forecast for the west of the region
Friday morning's forecast for the east of the region
Surrey Heath MP Michael Gove has confirmed he will stand for leadership of the Conservative party - taking on Maidenhead MP Theresa May