Whale oil, also referred to as train oil, is oil produced from whales. It was a major food of the aboriginal peoples of the Pacific northwest, such as the Nootka but it was also used for many purposes. * The first principal use of whale oil was as an illuminant in lamps. * Whale oil was also used as candle wax. * It was used for producing soap. * Whale oil later came to be used in oiling wools f..