Planned Service Outage  Saturday, May 30, 2026 Download this information as a PDF report
Date Range:   By default, PSO's are posted for 90 days past Notice End Date. Select date range and click Retrieve to select all PSO's effective, at some point, within the selected date range.
Notice TypePosted D/TNotice Eff D/TNotice End D/TNotice IdentifierSubjectResponse D/TActionMap
Maint5/29/2026
10:22 AM		8/4/2026
9:00 AM		8/4/2026
9:00 PM		3838Tioga Compressor Station Annual ESD & Maintenance DownloadView Map
Maint5/29/2026
9:36 AM		6/15/2026
9:00 AM		7/31/2026
5:00 PM		3837Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint5/29/2026
8:58 AM		4/15/2026
9:00 AM		5/30/2026
5:00 PM		3836Golva Compressor Station (Line Section 26) DownloadView Map
Maint5/28/2026
10:01 AM		6/4/2026
9:00 AM		6/4/2026
5:00 PM		3835Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint5/28/2026
9:51 AM		6/8/2026
9:00 AM		6/9/2026
7:00 PM		3834Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint5/26/2026
4:20 PM		5/18/2026
9:00 AM		5/26/2026
5:00 PM		3833Saco Compressor Station DownloadView Map
Maint5/22/2026
12:55 PM		5/18/2026
9:00 AM		5/26/2026
5:00 PM		3832Saco Compressor Station DownloadView Map
Maint5/21/2026
8:01 PM		5/21/2026
8:40 AM		5/21/2026
11:59 PM		3831Line Section 12 Bowman Lateral DownloadView Map
Maint5/21/2026
10:07 AM		5/22/2026
9:00 AM		6/12/2026
5:00 PM		3830Hardin Compressor Station DownloadView Map
Maint5/21/2026
8:36 AM		5/21/2026
8:40 AM		5/21/2026
11:59 PM		3829Line Section 12 Bowman Lateral DownloadView Map
Maint5/18/2026
1:48 PM		6/10/2026
9:00 AM		6/10/2026
5:00 PM		3828ElkHorn Creek Compressor Station - ESD Test DownloadView Map
Maint5/18/2026
1:26 PM		6/2/2026
9:00 AM		6/2/2026
5:00 PM		3827Spring Creek Compressor Station - ESD Test DownloadView Map
Maint5/14/2026
11:18 AM		5/21/2026
9:00 AM		5/21/2026
5:00 PM		3826Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint5/14/2026
10:51 AM		5/19/2026
9:00 AM		5/19/2026
5:00 PM		3825Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint5/14/2026
10:33 AM		6/16/2026
9:00 AM		6/17/2026
5:00 PM		3824Sandstone Creek Compressor Station DownloadView Map
Maint5/12/2026
1:53 PM		5/14/2026
9:00 AM		5/14/2026
5:00 PM		3823Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint5/12/2026
1:47 PM		5/18/2026
9:00 AM		5/19/2026
5:00 PM		3822Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint5/8/2026
9:54 AM		6/1/2026
9:00 AM		6/5/2026
5:00 PM		3821Line Section 2 (Dickinson - Bismarck) Hydrotest DownloadView Map
Maint5/7/2026
1:46 PM		6/8/2026
9:00 AM		7/10/2026
5:00 PM		3820Line Section 22 Elk Basin - Billings DownloadView Map
Maint5/7/2026
10:59 AM		5/19/2026
9:00 AM		5/19/2026
5:00 PM		3819Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint5/7/2026
10:44 AM		5/11/2026
9:00 AM		5/11/2026
1:00 PM		3818Cleveland Compressor Station DownloadView Map
Maint5/1/2026
2:54 PM		5/1/2026
3:00 PM		5/8/2026
5:00 PM		3817Line Section 11 (Cabin Creek - Monarch) Line Leak DownloadView Map
Maint4/24/2026
11:38 AM		6/1/2026
9:00 AM		6/5/2026
5:00 PM		3816Line Section 16 (Cabin Creek - Hathaway) Hydrotest DownloadView Map
Maint4/23/2026
11:46 AM		5/27/2026
9:00 AM		5/27/2026
5:00 PM		3815Charbonneau Compressor Station ESD and Maintenance DownloadView Map
Maint4/21/2026
2:00 PM		5/13/2026
9:00 AM		5/15/2026
5:00 PM		3814Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint4/21/2026
1:50 PM		4/17/2026
9:00 AM		5/6/2026
5:00 PM		3813Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint4/17/2026
3:18 PM		4/13/2026
9:00 AM		4/18/2026
9:00 AM		3812Line Section 30 Williston - Tioga DownloadView Map
Maint4/16/2026
1:49 PM		4/13/2026
9:00 AM		4/18/2026
9:00 AM		3811Line Section 30 Williston - Tioga DownloadView Map
Maint4/14/2026
3:47 PM		4/15/2026
9:00 AM		5/30/2026
5:00 PM		3810Golva Compressor Station (Line Section 26) DownloadView Map
Maint4/14/2026
11:06 AM		5/20/2026
6:30 AM		5/21/2026
5:00 PM		3809Line Section 22 (Elk Basin - Billings Red Line) DownloadView Map
Maint4/14/2026
9:32 AM		6/1/2026
9:00 AM		6/5/2026
5:00 PM		3808Worland Compressor Station DownloadView Map
Maint4/6/2026
2:56 PM		4/29/2026
9:00 AM		4/29/2026
5:00 PM		3807Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint4/3/2026
10:59 AM		4/9/2026
9:00 AM		4/9/2026
5:00 PM		3806ElkHorn Creek Compressor Station DownloadView Map
Maint3/31/2026
9:40 AM		4/1/2026
9:00 AM		4/1/2026
5:00 PM		3805Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint3/30/2026
2:12 PM		4/22/2026
9:00 AM		4/22/2026
11:00 PM		3804Line Section 01 - Little Knife Lateral DownloadView Map
Maint3/30/2026
9:33 AM		4/2/2026
9:00 AM		4/2/2026
5:00 PM		3803Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint3/27/2026
9:55 AM		4/1/2026
9:00 AM		4/1/2026
5:00 PM		3802Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint3/26/2026
2:29 PM		3/13/2026
9:00 AM		4/2/2026
5:00 PM		3801Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint3/26/2026
2:24 PM		3/26/2026
9:00 AM		3/27/2026
5:00 PM		3800Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint3/24/2026
10:12 AM		3/26/2026
9:00 AM		3/26/2026
5:00 PM		3799Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint3/23/2026
8:44 AM		3/5/2026
9:00 AM		3/24/2026
5:00 PM		3798Belle Fourche Compressor Station DownloadView Map
Maint3/19/2026
2:38 PM		4/22/2026
9:00 AM		4/22/2026
5:00 PM		3797Cleveland Compressor Station DownloadView Map
Maint3/19/2026
11:39 AM		3/26/2026
9:00 AM		3/26/2026
5:00 PM		3796Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint3/16/2026
10:23 AM		5/18/2026
9:00 AM		5/22/2026
5:00 PM		3795Saco Compressor Station DownloadView Map
Maint3/13/2026
2:02 PM		4/13/2026
9:00 AM		4/18/2026
9:00 AM		3794Line Section 30 Williston - Tioga DownloadView Map
Maint3/13/2026
9:51 AM		3/5/2026
9:00 AM		3/20/2026
5:00 PM		3793Belle Fourche Compressor Station DownloadView Map
Maint3/11/2026
4:49 PM		3/13/2026
9:00 AM		3/13/2026
5:00 PM		3792Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint3/11/2026
10:47 AM		3/5/2026
9:00 AM		3/13/2026
5:00 PM		3791Belle Fourche Compressor Station DownloadView Map
Maint3/5/2026
11:31 AM		4/1/2026
9:00 AM		4/2/2026
5:00 PM		3790Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint3/5/2026
10:54 AM		3/12/2026
9:00 AM		3/12/2026
5:00 PM		3789ElkHorn Creek Compressor Station DownloadView Map
Maint3/5/2026
10:38 AM		3/5/2026
9:00 AM		3/11/2026
5:00 PM		3788Belle Fourche Compressor Station DownloadView Map
Maint3/5/2026
9:43 AM		3/23/2026
9:00 AM		3/27/2026
5:00 PM		3787Baker Storage Field DownloadView Map
Maint3/3/2026
2:03 PM		4/17/2026
9:00 AM		5/1/2026
5:00 PM		3786Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint3/2/2026
10:00 AM		3/5/2026
9:00 AM		3/6/2026
5:00 PM		3785Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint3/2/2026
9:57 AM		3/3/2026
9:00 AM		3/4/2026
5:00 PM		3784Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint2/27/2026
10:31 AM		1/12/2026
12:00 PM		3/4/2026
5:00 PM		3783Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint2/27/2026
9:56 AM		3/19/2026
9:00 AM		3/19/2026
5:00 PM		3782Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint2/27/2026
9:44 AM		3/17/2026
9:00 AM		3/19/2026
9:00 AM		3781Elk Basin Storage Field DownloadView Map
Maint2/26/2026
4:27 PM		2/24/2026
9:00 AM		3/6/2026
5:00 PM		3780Sandstone Creek Compressor Station DownloadView Map
Maint2/26/2026
2:08 PM		3/2/2026
9:00 AM		3/5/2026
6:00 PM		3779Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint2/26/2026
9:22 AM		3/2/2026
9:00 AM		3/2/2026
5:00 PM		3778Cabin Creek Station - Aggregate Storage Withdraw DownloadView Map
Maint2/25/2026
8:16 AM		3/13/2026
9:00 AM		3/27/2026
5:00 PM		3777Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint2/24/2026
10:59 AM		3/31/2026
9:00 AM		3/31/2026
10:00 PM		3776Line Section 14 DownloadView Map
Maint2/23/2026
12:02 PM		2/24/2026
9:00 AM		3/6/2026
5:00 PM		3775Sandstone Creek Compressor Station DownloadView Map
Maint2/17/2026
11:23 AM		3/26/2026
9:00 AM		4/3/2026
12:00 PM		3773Baker Storage Field DownloadView Map
Maint2/17/2026
10:47 AM		3/24/2026
9:00 AM		3/26/2026
9:00 AM		3772Elk Basin Storage Field DownloadView Map
Maint2/9/2026
9:55 AM		1/12/2026
12:00 PM		3/2/2026
5:00 PM		3767Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint1/9/2026
4:34 PM		3/12/2026
9:00 AM		3/12/2026
5:00 PM		3746Little Beaver Compressor Station DownloadView Map
Maint1/9/2026
4:22 PM		3/5/2026
9:00 AM		3/5/2026
5:00 PM		3745Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint1/9/2026
4:17 PM		3/3/2026
9:00 AM		3/3/2026
5:00 PM		3744Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint1/9/2026
4:08 PM		3/17/2026
9:00 AM		3/17/2026
5:00 PM		3743Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint1/9/2026
3:07 PM		3/10/2026
9:00 AM		3/10/2026
5:00 PM		3741Sandstone Creek Compressor Station DownloadView Map

*** All references to Time are stated for the Central Time Zone.

All posted impacts to capacities are based on WBI Energy Transmission’s best estimates. Actual impacts may vary from the posted impacts depending on system operating conditions, weather and other factors. WBI Energy Transmission reserves the right to revise all postings. If you have any questions regarding this posting, please contact a Transportation Services Analyst at 701-530-1630.


Impact Ranking Key for PSO
Impact Level / Color Shading Impact Description
Low Impact (None) Allocations to Transportation are unlikely.
Potential Impact (Blue) Potential impact to Receipts and/or Deliveries.
High Impact (Yellow) Receipts, Deliveries and Throughput Allocations are likely.
Service Outage (Red) Allocations happening / Force Majeure.
If you have any questions or comments regarding this information, please e-mail Market Services.
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