Exclusive: Future of further projects uncertain after Rosebank and Jackdaw licences were found to have been unlawfully granted

Thirteen more oil and gas licences could be cancelled as ministers decide new guidance for fossil fuel extraction after a landmark court case, the Guardian has learned.

The admission that many more licences may ultimately be unlawful comes on the back of cabinet tensions over the future of two major oil and gas fields – Rosebank and Jackdaw – whose licences were last month found to have been unlawfully granted.