Planned Service Outage  Monday, October 20, 2025 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
Maint10/16/2025
8:45 AM		10/2/2025
10:00 AM		10/17/2025
5:00 PM		3666Hardin Compressor Station - Line Section 17 DownloadView Map
Maint10/15/2025
4:13 PM		10/9/2025
9:00 AM		10/17/2025
5:00 PM		3665Baker Storage Field DownloadView Map
Maint10/15/2025
3:08 PM		5/8/2025
9:00 AM		10/24/2025
5:00 PM		3664Willow Creek Compressor Station (Line Section 35) DownloadView Map
Maint10/15/2025
2:28 PM		10/23/2025
9:00 AM		10/23/2025
5:00 PM		3663Line Section 22 Elk Basin - Billings DownloadView Map
Maint10/10/2025
3:17 PM		10/13/2025
9:00 AM		10/13/2025
5:00 PM		3662Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint10/10/2025
9:37 AM		10/17/2025
9:00 AM		10/17/2025
5:00 PM		3661Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint10/6/2025
3:38 PM		10/2/2025
10:00 AM		10/17/2025
5:00 PM		3660Hardin Compressor Station - Line Section 17 DownloadView Map
Maint10/2/2025
10:12 AM		10/2/2025
10:00 AM		10/10/2025
5:00 PM		3659Hardin Compressor Station - Line Section 17 DownloadView Map
Maint10/1/2025
4:08 PM		10/8/2025
9:00 AM		10/8/2025
5:00 PM		3658ElkHorn Creek Compressor Station DownloadView Map
Maint10/1/2025
10:17 AM		10/21/2025
9:00 AM		10/23/2025
10:00 PM		3657Line Section 7 (Washburn Lateral) DownloadView Map
Maint9/30/2025
2:57 PM		10/13/2025
9:00 AM		10/17/2025
5:00 PM		3656Morgan Creek Compressor Station DownloadView Map
Maint9/30/2025
10:20 AM		5/22/2025
9:00 AM		11/28/2025
5:00 PM		3655Golva Compressor Station (Line Section 26) DownloadView Map
Maint9/30/2025
9:54 AM		10/9/2025
9:00 AM		10/10/2025
8:00 PM		3654Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint9/30/2025
9:03 AM		9/11/2025
9:00 AM		10/31/2025
5:00 PM		3653Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint9/26/2025
3:18 PM		9/15/2025
9:00 AM		10/3/2025
5:00 PM		3652Morgan Creek Compressor Station DownloadView Map
Maint9/23/2025
10:56 AM		10/1/2025
9:00 AM		10/1/2025
5:00 PM		3651Cleveland Compressor Station DownloadView Map
Maint9/19/2025
11:43 AM		9/29/2025
9:00 AM		9/30/2025
5:00 PM		3650Worland Compressor Station DownloadView Map
Maint9/19/2025
9:16 AM		9/29/2025
9:00 AM		10/3/2025
5:00 PM		3649Dickinson Compressor Station DownloadView Map
Maint9/18/2025
4:22 PM		9/17/2025
9:00 AM		9/25/2025
5:00 PM		3648Cabin Creek Compressor Station DownloadView Map
Maint9/18/2025
2:45 PM		9/10/2025
9:00 AM		9/19/2025
5:00 PM		3647County Line Plant Fuel DownloadView Map
Maint9/18/2025
2:42 PM		9/15/2025
9:00 AM		9/19/2025
5:00 PM		3646County Line Plant DownloadView Map
Maint9/18/2025
12:29 PM		9/22/2025
9:00 AM		9/25/2025
9:00 PM		3645Line Section 22 – MDU Billings Mullowney Station DownloadView Map
Maint9/18/2025
11:55 AM		9/24/2025
9:00 AM		9/24/2025
10:00 PM		3644Line Section 9 (FT. Peck to Vida) DownloadView Map
Maint9/17/2025
9:49 AM		9/17/2025
9:00 AM		9/25/2025
5:00 PM		3643Cabin Creek Compressor Station DownloadView Map
Maint9/17/2025
9:31 AM		9/22/2025
9:00 AM		9/22/2025
5:00 PM		3642Hardin Compressor Station DownloadView Map
Maint9/12/2025
3:53 PM		11/13/2025
9:00 AM		11/14/2025
5:00 PM		3641Line Section 6 - McKenzie Plant - Fort Buford DownloadView Map
Maint9/12/2025
3:34 PM		10/6/2025
9:00 AM		10/31/2025
5:00 PM		3640Line Section 6 - McKenzie Plant DownloadView Map
Maint9/12/2025
11:34 AM		9/18/2025
9:00 AM		9/18/2025
5:00 PM		3639Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint9/11/2025
1:16 PM		9/17/2025
9:00 AM		9/17/2025
5:00 PM		3638Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint9/11/2025
10:40 AM		9/22/2025
9:00 AM		9/25/2025
5:00 PM		3637Line Section 22 – MDU Billings Mullowney Station DownloadView Map
Maint9/10/2025
11:12 AM		10/20/2025
9:00 AM		10/20/2025
5:00 PM		3636Elk Basin Storage Field DownloadView Map
Maint9/10/2025
10:39 AM		9/17/2025
9:00 AM		9/17/2025
5:00 PM		3635Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint9/9/2025
5:00 PM		9/10/2025
9:00 AM		9/19/2025
5:00 PM		3634County Line Plant Fuel DownloadView Map
Maint9/9/2025
4:24 PM		9/23/2025
9:00 AM		9/23/2025
5:00 PM		3633Golva Compressor Station DownloadView Map
Maint9/9/2025
3:05 PM		9/16/2025
8:00 AM		9/16/2025
12:00 PM		3632ElkHorn Creek Compressor Station DownloadView Map
Maint9/9/2025
1:44 PM		10/6/2025
9:00 AM		10/10/2025
5:00 PM		3631Morgan Creek Compressor Station DownloadView Map
Maint9/9/2025
1:21 PM		9/15/2025
9:00 AM		10/3/2025
5:00 PM		3630Morgan Creek Compressor Station DownloadView Map
Maint9/9/2025
8:49 AM		9/12/2025
9:00 AM		9/12/2025
5:00 PM		3629Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint9/8/2025
12:05 PM		10/9/2025
9:00 AM		10/17/2025
5:00 PM		3628Baker Storage Field DownloadView Map
Maint9/4/2025
4:31 PM		9/11/2025
9:00 AM		9/26/2025
5:00 PM		3627Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint9/4/2025
3:52 PM		5/28/2025
9:00 AM		9/12/2025
5:00 PM		3626Line Section 2 (Mandan, ND Area) DownloadView Map
Maint9/4/2025
1:52 PM		9/8/2025
9:00 AM		9/9/2025
5:00 PM		3625Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint9/4/2025
10:20 AM		9/9/2025
9:00 AM		9/9/2025
5:00 PM		3624Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint9/3/2025
11:15 AM		10/21/2025
9:00 AM		10/23/2025
9:00 AM		3623Elk Basin Storage Field DownloadView Map
Maint9/3/2025
10:39 AM		10/28/2025
9:00 AM		10/30/2025
9:00 AM		3622Elk Basin Storage Field DownloadView Map
Maint9/2/2025
3:06 PM		9/3/2025
9:00 AM		9/4/2025
5:00 PM		3621Line Section 25 Tioga - Portal DownloadView Map
Maint8/28/2025
9:58 AM		9/3/2025
9:00 AM		9/3/2025
5:00 PM		3620ElkHorn Creek Compressor Station DownloadView Map
Maint8/27/2025
1:19 PM		9/16/2025
9:00 AM		9/16/2025
8:00 PM		3619Bismarck Compressor Station DownloadView Map
Maint8/26/2025
3:14 PM		9/24/2025
9:00 AM		9/24/2025
10:00 PM		3618Line Section 9 (FT. Peck to Vida) DownloadView Map
Maint8/25/2025
3:52 PM		9/10/2025
9:00 AM		9/10/2025
5:00 PM		3617Cleveland Compressor Station DownloadView Map
Maint8/25/2025
2:40 PM		9/10/2025
9:00 AM		9/10/2025
11:00 AM		3616Willow Creek Compressor Station DownloadView Map
Maint8/25/2025
2:05 PM		5/8/2025
9:00 AM		10/20/2025
5:00 PM		3615Willow Creek Compressor Station (Line Section 35) DownloadView Map
Maint8/21/2025
3:54 PM		9/3/2025
9:00 AM		9/4/2025
5:00 PM		3614Line Section 25 Tioga - Portal DownloadView Map
Maint8/21/2025
1:56 PM		10/20/2025
9:00 AM		11/14/2025
5:00 PM		3613Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint8/21/2025
1:46 PM		9/9/2025
9:00 AM		9/11/2025
5:00 PM		3612Cabin Creek Compressor Station DownloadView Map
Maint8/21/2025
11:53 AM		9/22/2025
9:00 AM		10/2/2025
5:00 PM		3611Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint8/21/2025
11:23 AM		9/22/2025
9:00 AM		9/25/2025
5:00 PM		3610Dickinson Compressor Station DownloadView Map
Maint8/19/2025
1:50 PM		9/15/2025
9:00 AM		9/19/2025
5:00 PM		3609County Line Plant DownloadView Map
Maint8/19/2025
8:47 AM		8/18/2025
9:00 AM		8/28/2025
5:00 PM		3608Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint8/18/2025
2:54 PM		9/2/2025
9:00 AM		9/5/2025
5:00 PM		3607West Short Pine Hills DownloadView Map
Maint8/11/2025
11:10 AM		5/22/2025
9:00 AM		9/30/2025
5:00 PM		3606Golva Compressor Station (Line Section 26) DownloadView Map
Maint8/8/2025
10:13 AM		8/19/2025
9:00 AM		8/19/2025
11:00 PM		3605FT. Peck Compressor Station DownloadView Map
Maint8/7/2025
9:46 AM		8/21/2025
9:00 AM		8/23/2025
5:00 PM		3604Line Section 22 - Allendale to Billings West DownloadView Map
Maint8/6/2025
2:47 PM		8/19/2025
9:00 AM		8/20/2025
5:00 PM		3603Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint8/6/2025
12:03 PM		8/6/2025
9:00 AM		9/9/2025
5:00 PM		3602Hardin Compressor Station DownloadView Map
Maint8/5/2025
11:34 AM		8/18/2025
9:00 AM		8/22/2025
5:00 PM		3601Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint8/5/2025
11:05 AM		8/11/2025
11:00 AM		8/11/2025
5:00 PM		3600Willow Creek Compressor Station DownloadView Map
Maint8/5/2025
10:27 AM		8/6/2025
9:00 AM		8/6/2025
2:00 PM		3599Hardin Compressor Station DownloadView Map
Maint8/1/2025
12:20 PM		8/25/2025
9:00 AM		9/5/2025
5:00 PM		3598Cabin Creek Compressor Station DownloadView Map
Maint8/1/2025
9:44 AM		8/4/2025
9:00 AM		8/15/2025
5:00 PM		3597Line Section 19 - Lake Creek Line DownloadView Map
Maint8/1/2025
9:16 AM		6/23/2025
9:00 AM		8/29/2025
5:00 PM		3596Cabin Creek Compressor Station DownloadView Map
Maint8/1/2025
9:13 AM		5/22/2025
9:00 AM		8/29/2025
5:00 PM		3595Golva Compressor Station (Line Section 26) DownloadView Map
Maint7/30/2025
8:35 AM		7/21/2025
9:00 AM		8/1/2025
5:00 PM		3594Line Section 24 Cleveland – Mapleton DownloadView Map
Maint7/25/2025
11:37 AM		8/7/2025
8:00 AM		8/7/2025
1:00 PM		3593Williston Compressor Station DownloadView Map
Maint7/24/2025
2:27 PM		8/6/2025
9:00 AM		8/6/2025
5:00 PM		3592Elk Basin Compressor Station Download
Maint7/24/2025
12:17 PM		8/11/2025
9:00 AM		8/13/2025
5:00 PM		3591Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint7/23/2025
4:52 PM		8/11/2025
9:00 AM		8/15/2025
5:00 PM		3590Line Section 27 Spring Creek - Garden Creek DownloadView Map
Maint7/23/2025
11:05 AM		8/4/2025
9:00 AM		8/8/2025
5:00 PM		3589Line Section 19 - Lake Creek Line DownloadView Map
Maint7/16/2025
1:36 PM		7/29/2025
9:00 AM		7/29/2025
6:00 PM		3588Glen Ullin Compressor Station DownloadView Map
Maint7/15/2025
11:26 AM		7/23/2025
9:00 AM		7/23/2025
5:00 PM		3587Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint7/15/2025
11:17 AM		7/22/2025
9:00 AM		7/22/2025
5:00 PM		3586Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint7/14/2025
4:13 PM		5/8/2025
9:00 AM		8/29/2025
5:00 PM		3584Willow Creek Compressor Station (Line Section 35) DownloadView Map
Maint7/10/2025
4:37 PM		6/23/2025
9:00 AM		7/31/2025
5:00 PM		3583Cabin Creek Compressor Station DownloadView Map
Maint6/30/2025
9:29 AM		5/22/2025
9:00 AM		7/31/2025
5:00 PM		3576Golva Compressor Station (Line Section 26) DownloadView Map
Maint6/26/2025
1:45 PM		7/21/2025
9:00 AM		8/1/2025
5:00 PM		3571Line Section 24 Cleveland – Mapleton DownloadView Map
Maint6/26/2025
11:52 AM		8/5/2025
9:00 AM		8/5/2025
9:00 PM		3570Tioga Compressor Station Annual Maintenance DownloadView Map
Maint4/23/2025
4:30 PM		5/28/2025
9:00 AM		9/11/2025
5:00 PM		3526Line Section 2 (Mandan, ND Area) 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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