Sent_en: 2ms Statoil admits, however, that heavy oil production, such as is required in the oil sands, is "energy intensive and challenging in an environmental perspective."
Sent_yy: Statoil mengakui, walaubagaimanapun, penghasilan minyak berat, yang diperlukan dalam minyak pasir, adalah "tenaga intensif dan mencabar dari perspektif alam sekitar."