GASNF - Naturgy Energy Group S.A. 2021 Q1 - Results - Earnings Call Presentation April, 28 2021 08:15 PM Naturgy Energy Group S.A. The following slide deck was published by Naturgy Energy Group, S.A. in conjunction with their 2021 Q1 earnings call. For further details see: Naturgy Energy Group, S.A. 2021 Q1 - Results - Earnings Call Presentation