Attached files

file filename
EX-32.2 - EX-32.2 - Northwest Natural Holding Coex322q42020_ceocfo.htm
EX-32.1 - EX-32.1 - Northwest Natural Holding Coex321q42020_ceocfo.htm
EX-31.4 - EX-31.4 - Northwest Natural Holding Coex314q42020_cfo.htm
EX-31.3 - EX-31.3 - Northwest Natural Holding Coex313q42020_ceo.htm
EX-31.2 - EX-31.2 - Northwest Natural Holding Coex312q42020_cfo.htm
EX-31.1 - EX-31.1 - Northwest Natural Holding Coex311q42020_ceo.htm
EX-23.B - EX-23.B - Northwest Natural Holding Coex23b2020consentofpublicac.htm
EX-23.A - EX-23.A - Northwest Natural Holding Coex23a2020consentofpublicac.htm
EX-21 - EX-21 - Northwest Natural Holding Coex2112312020.htm
EX-10.Z - EX-10.Z - Northwest Natural Holding Coex10z2021rsugrantagreement.htm
EX-10.W - EX-10.W - Northwest Natural Holding Coex10w2021-2023pspgrantagre.htm
EX-10.O - EX-10.O - Northwest Natural Holding Coex10oexecutiveannualincent.htm
EX-10.LL - EX-10.LL - Northwest Natural Holding Coex10ll_2021nwngsaipplan.htm
EX-3.B - EX-3.B - Northwest Natural Holding Coexhibit3brestatedarticleso.htm
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