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.
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Sunny this evening, then dry overnight. There is the risk of thundery showers for Kent tomorrow morning, then sunny spells by the afternoon
Sunshine to end the day then dry tonight. Tomorrow will be mostly dry and feeling fresher with the risk of a heavy shower in the afternoon
The video, obtained by ITV News, shows scores of migrants desperately trying to board lorries in a restricted area within the tunnel.