title: Oil shale economics
context: The production cost of a barrel of shale oil ranges from as high as US$95 per barrel to as low US$25 per barrel, although there is no recent confirmation of the latter figure.[4]  The industry is proceeding cautiously, due to the losses incurred during the last major investment into oil shale in the early 1980s, when a subsequent collapse in the oil price left the projects uneconomical.[5]
question: How much does oil shale sell for?
answers: as high as US$95 per barrel to as low US$25 per barrel