Sent_en: 2fil 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: Inamin ng Statoil, datapwat, ang mabigat na produksiyon ng langis, kagaya ng ibang kailangan sa mga buhangin ng langis, ay "matinding enerhiya at nakakapanghamon sa isang pananaw na pangkapaligiran."