Calgary-based Canadian Natural Resources International (CNRI) has received a Health and Safety Executive (HSE) notice after failing to issue a warning to the staff at the Ninian Southern platform during an emergency hydrocarbon leak. Although no staff was hurt, an uncontrolled release from an oil well put staff in danger on February 5th at the CNRI-operated platform. HSE regarded CNRI’s methods to caution staff of the emergency “ineffective”.