WBI Energy Transmission, Inc.

Capacity Constraint, 4/21/2019

4/21/2019 - 4/22/2019

Critical - Capacity Constraint
Gas Day: 4/21/2019, Cycle: Timely. The following locations and/or line sections are in a critical situation. Penalties will be imposed at the following locations and/or all locations within the line sections: Line Section(s): 024 Cleveland - Mapleton; Capacity Constraint 031 Felton-Mapleton; Capacity Constraint 016 Cabin Creek - Hathaway; Capacity Constraint 017 Hathaway - Hardin; Capacity Constraint 018 Hardin - Lovell; Capacity Constraint 019 Madden - Worland; Capacity Constraint 020 Worland - Lovell; Capacity Constraint 021 Lovell - Elk Basin; Capacity Constraint 022 Elk Basin - Billings; Capacity Constraint

Capacity Constraint, 4/20/2019

4/20/2019 - 4/21/2019

Critical - Capacity Constraint
Gas Day: 4/20/2019, Cycle: Timely. The following locations and/or line sections are in a critical situation. Penalties will be imposed at the following locations and/or all locations within the line sections: Line Section(s): 024 Cleveland - Mapleton; Capacity Constraint 031 Felton-Mapleton; Capacity Constraint 016 Cabin Creek - Hathaway; Capacity Constraint 017 Hathaway - Hardin; Capacity Constraint 018 Hardin - Lovell; Capacity Constraint 019 Madden - Worland; Capacity Constraint 020 Worland - Lovell; Capacity Constraint 021 Lovell - Elk Basin; Capacity Constraint 022 Elk Basin - Billings; Capacity Constraint

2019 Summer Storage	3/4/2019 - 3/31/2020
Rates and Charges WBI Energy Transmission, Inc. announces its 2019 Summer Storage Program to be effective April 1, 2019. For more information refer to the "Other/Reference" link under Informational Postings, file name "2019 Summer Storage Letter".

WBI Energy Transmission Holiday Office Hours

1/1/2019 - 1/1/2020

Customer Services Update
WBI Energy Transmissions office will be closed the following holidays: January 1, 2019 New Year s Day February 18, 2019 Presidents Day May 27, 2019 Memorial Day July 4, 2019 Independence Day September 2, 2019 Labor Day November 11, 2019 Veterans Day November 28 & 29, 2019 Thanksgiving December 24 & 25, 2019 Christmas Nominations staff will continue to be available for all nomination cycles. For scheduling questions, please contact the nominations staff at 701-530-1630

Weekly Computer system Maintenance	1/1/2019 - 1/1/2020
Computer System Status Scheduled computer maintenance will interrupt the Companys Gas Management Computer system for approximately 4 hours every Friday beginning at 1 a.m. and ending Friday at approximately 5 a.m. Most interactive EBB functions, including nominations will be affected. For further information, please call 701-530-1630.

Gas Day	Cycle	Description	Location	Line Section
4/21/2019	Timely	Cabin Creek - Hathaway		016
4/21/2019	Timely	Hathaway - Hardin		017
4/21/2019	Timely	Hardin - Lovell		018
4/21/2019	Timely	Madden - Worland		019
4/21/2019	Timely	Worland - Lovell		020
4/21/2019	Timely	Lovell - Elk Basin		021
4/21/2019	Timely	Elk Basin - Billings		022
4/21/2019	Timely	Cleveland - Mapleton		024
4/21/2019	Timely	Felton-Mapleton		031