Senior trustees from the Lancashire Wildlife Trust visited a Cuadrilla base to discuss concerns about fracking.
The trust has asked for answers from companies involved in extracting gas and oil from shale before more work goes ahead, due to worries over the impact on ecology and river estuaries.
Trustees attended a meeting with the firm at its permanent site in Elswick, near Preston.
A spokesman for Cuadrilla said: “We’re committed to working with the community and are keen to take on board the views of local people and organisations as we continue to assess the full potential of Lancashire’s shale.
“As part of this process we’re already speaking to the Lancashire Wildlife Trust and were delighted to welcome them on a site visit, where we had the opportunity to address their questions.
“More than 200 people and organisations, including the Lancashire Wildlife Trust, have already provided input into Arup’s environmental assessment work.
“We look forward to continuing these important discussions.”
The trust, which described the meeting as a “fact finding visit”, said it was taking evidence from a range of sources to advise its position on fracking and would be raising any unanswered questions with the Government.
Chief executive Anne Selby said: “The trust is taking a fact based, site-by-site approach.
“Communication is always critical in these matters and the meeting was an opportunity to discuss concerns and find out more about the plans for the future.”
Trustees also spoke to the independent consultancy firm Arup, which Cuadrilla appointed to prepare environmental impact assessments to accompany planning applications for fracking sites.
The Lancashire Wildlife Trust campaigns and opposes developments which harm local wildlife, but prides itself on taking a scientific and evidence based approach.
Mrs Selby said: “We feel keeping communications open with Cuadrilla and gaining as much information about the plans and processes as possible, we can best equip ourselves to ensure the environment is protected, and at the forefront of any future development plans.”