Look up original licences and licence reports for UK onshore, offshore and gas storage by block, company or licence number.
You can go to the UK Oil Portal to apply online for onshore and offshore petroleum licences - and for changes to licences eg assignments and relinquishments (login required).
All the offshore licences have been migrated to the new portal licensing system
10 June 2013
Department of Energy & Climate Change
Don’t include personal or financial information like your National Insurance number or credit card details.