Our Low-Carbon Pathway
53
MIST STORAGE FACILITY
Overview
• In operation since 1989
Storage capacity at Mist 17 Bcf
- 11.3 Bcf Core Utility
-
5.7 Bcf Interstate Storage Services
Unique, Valuable Asset
⚫ Limited storage options in Pacific Northwest
• Part of utility's diverse, reliable gas supply strategy
Utility can recall Interstate portion for Core Utility demand
Optimize non-utility portion and share revenues with utility
customers
⚫ 5.7 Bcf under long-term high-value contracts
BCF
18
15
12
9
52063
30
BCF / Day
0.60
0.50
0.40
0.30
0.20
0.10
0.00
Mist Storage Capacity
1998
2000
2002
T
T
T
T
T
2004
2006
2008
2010
Mist Storage Deliverability
2012
T
T
2014
1998
2000
2002
2004
2006
2008
2010
■ Utility
■ Utility Recall
■Interstate
2012
2014
2016
T
T
2016
2018
T
2020
2018
2020
NW NaturalⓇView entire presentation