Oil slump yet to hit US shale production.

Oil slump yet to hit US shale production. The vast majority of shale oil in the US is produced at costs far below the current price of crude, the head of the west's energy watchdog said, which means US projects can withstand the market slump squeezing other producers.Brent oil stands at around $88 per barrel, down more than 23 per cent from the year's peak above $115 in June, raising concern that some shale oil projects will become...