The leaking hydrocarbons are believed to be coming in the well from a rock å which is above the producing reservoir of the Elgin field. The volume of this gas ingress is therefore difficult to estimate. Reports from Oil Spill Response (OSRL) surveillance flight indicate that the gas cloud is still stable and is heading away from Elgin facilities. Total confirms that the gas leak remains ongoing although the situation is currently stable. The precise cause of the gas leak is still being investigated and efforts continue to focus on bringing it under control.