The government was forced to publish the unredacted report after a decision by data watchdog the Information Commissioner's Office.
Defra said the report was incomplete and "not analytically robust".
It added that the conclusions of the draft report "amount to unsubstantiated conjecture".
United
Kingdom Onshore Oil and Gas (UKOOG), the industry lobby for the UK
onshore oil and gas industry, said the report was "in danger of
extrapolating the experiences of other jurisdictions that have different
regulation, planning regimes and geologies."
The internal document - called 'Shale Gas: Rural Economy Impacts'
- had several key sections obscured when it was published by the
Department for Environment, Food and Rural Affairs (Defra) last summer
in response to a request under freedom of information laws.
