Question:  The Bowland Shale Formation is a Carboniferous geological formation of Asbian (Visean) to Yeadonian (Bashkirian) age, it is an organic-rich shale which, according to which organization, and is the source rock where "oil and gas matured before migration to conventional fields in the East Midlands and the Irish Sea"?
Sentence (from "Oil shale"): A 2016 estimate of global deposits set the total world resources of oil shale equivalent of 6.05 Toilbbl of oil in place.
Relevant evidence: No