Planned Service Outage  Friday, December 19, 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
Maint12/19/2025
9:57 AM		11/21/2025
9:00 AM		12/26/2025
5:00 PM		3728Hardin Compressor Station DownloadView Map
Maint12/17/2025
3:13 PM		12/18/2025
9:00 AM		12/23/2025
5:00 PM		3727Dickinson Compressor Station DownloadView Map
Maint12/15/2025
11:54 AM		12/16/2025
9:00 AM		12/16/2025
2:00 PM		3726Cabin Creek Compressor Station DownloadView Map
Maint12/12/2025
9:53 AM		11/21/2025
9:00 AM		12/19/2025
5:00 PM		3725Hardin Compressor Station DownloadView Map
Maint12/12/2025
9:08 AM		12/8/2025
9:00 AM		12/15/2025
5:00 PM		3724Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint12/11/2025
11:13 AM		12/8/2025
9:00 AM		12/12/2025
5:00 PM		3723Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint12/10/2025
1:17 PM		12/9/2025
9:00 AM		12/18/2025
5:00 PM		3722Baker Compressor Station DownloadView Map
Maint12/9/2025
10:50 AM		12/16/2025
9:00 AM		12/17/2025
5:00 PM		3721Worland Compressor Station DownloadView Map
Maint12/8/2025
4:23 PM		12/9/2025
9:00 AM		12/18/2025
5:00 PM		3720Baker Compressor Station DownloadView Map
Maint12/5/2025
10:11 AM		12/2/2025
9:00 AM		12/12/2025
5:00 PM		3719Cabin Creek Compressor Station DownloadView Map
Maint12/4/2025
4:15 PM		12/19/2025
9:00 AM		12/19/2025
5:00 PM		3718Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint12/4/2025
3:59 PM		12/16/2025
9:00 AM		12/16/2025
5:00 PM		3717Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint12/3/2025
3:47 PM		5/22/2025
9:00 AM		1/31/2026
5:00 PM		3716Golva Compressor Station (Line Section 26) DownloadView Map
Maint12/3/2025
10:56 AM		12/29/2025
9:00 AM		12/30/2025
5:00 PM		3715Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint12/3/2025
10:45 AM		12/22/2025
9:00 AM		12/23/2025
5:00 PM		3714Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint12/2/2025
2:49 PM		12/2/2025
3:00 PM		1/2/2026
5:00 PM		3713Baker Compressor Station DownloadView Map
Maint12/2/2025
1:27 PM		11/3/2025
11:00 AM		12/12/2025
5:00 PM		3712Glen Ullin Compressor Station - Line Section 2 Download
Maint12/2/2025
10:22 AM		12/8/2025
9:00 AM		12/11/2025
5:00 PM		3711Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint12/1/2025
3:17 PM		12/1/2025
3:00 PM		12/2/2025
5:00 PM		3710Cabin Creek Station - Aggregate Storage Withdraw DownloadView Map
Maint12/1/2025
11:35 AM		12/2/2025
9:00 AM		12/2/2025
5:00 PM		3709Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint12/1/2025
10:53 AM		12/2/2025
9:00 AM		12/2/2025
1:00 PM		3708ElkHorn Creek Compressor Station DownloadView Map
Maint11/26/2025
11:54 AM		11/3/2025
11:00 AM		12/12/2025
5:00 PM		3707Glen Ullin Compressor Station - Line Section 2 Download
Maint11/26/2025
10:47 AM		5/22/2025
9:00 AM		12/31/2025
5:00 PM		3706Golva Compressor Station (Line Section 26) DownloadView Map
Maint11/26/2025
9:43 AM		12/2/2025
9:00 AM		12/19/2025
5:00 PM		3705Little Beaver Compressor Station DownloadView Map
Maint11/25/2025
10:41 AM		11/21/2025
9:00 AM		12/12/2025
5:00 PM		3704Hardin Compressor Station DownloadView Map
Maint11/21/2025
1:53 PM		11/3/2025
11:00 AM		11/26/2025
5:00 PM		3703Glen Ullin Compressor Station - Line Section 2 Download
Maint11/21/2025
1:33 PM		12/2/2025
9:00 AM		12/2/2025
5:00 PM		3702Cabin Creek Compressor Station DownloadView Map
Maint11/21/2025
12:17 PM		11/24/2025
9:00 AM		11/24/2025
1:00 PM		3701Golva Compressor Station DownloadView Map
Maint11/21/2025
11:55 AM		11/21/2025
9:00 AM		12/5/2025
5:00 PM		3700Hardin Compressor Station DownloadView Map
Maint11/21/2025
11:45 AM		11/21/2025
9:00 AM		12/5/2025
5:00 PM		3699Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint11/21/2025
10:31 AM		11/3/2025
11:00 AM		11/24/2025
5:00 PM		3698Glen Ullin Compressor Station - Line Section 2 Download
Maint11/21/2025
10:03 AM		11/12/2025
2:00 PM		11/24/2025
5:00 PM		3697Willow Creek Compressor Station (Line Section 35) DownloadView Map
Maint11/19/2025
4:25 PM		11/26/2025
9:00 AM		11/26/2025
5:00 PM		3696Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint11/19/2025
3:53 PM		11/25/2025
9:00 AM		11/25/2025
5:00 PM		3695ElkHorn Creek Compressor Station DownloadView Map
Maint11/17/2025
12:16 PM		11/19/2025
9:00 AM		11/19/2025
5:00 PM		3694Williston Compressor Station DownloadView Map
Maint11/14/2025
11:18 AM		10/20/2025
9:00 AM		11/14/2025
5:00 PM		3693Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint11/14/2025
11:13 AM		9/11/2025
9:00 AM		11/21/2025
5:00 PM		3692Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint11/13/2025
4:12 PM		12/17/2025
9:00 AM		12/18/2025
5:00 PM		3691Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint11/13/2025
4:04 PM		12/4/2025
9:00 AM		12/4/2025
8:00 PM		3690Tioga Compressor Station (Elkhorn Creek Delivery) DownloadView Map
Maint11/13/2025
1:30 PM		11/3/2025
11:00 AM		11/21/2025
5:00 PM		3689Glen Ullin Compressor Station - Line Section 2 Download
Maint11/12/2025
2:59 PM		11/12/2025
9:00 AM		11/13/2025
5:00 PM		3688ElkHorn Creek Compressor Station DownloadView Map
Maint11/12/2025
1:35 PM		11/12/2025
2:00 PM		11/24/2025
5:00 PM		3687Willow Creek Compressor Station (Line Section 35) DownloadView Map
Maint11/12/2025
10:40 AM		11/12/2025
11:00 AM		11/14/2025
5:00 PM		3686Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint11/10/2025
2:21 PM		11/10/2025
9:00 AM		11/14/2025
5:00 PM		3685Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint11/7/2025
9:37 AM		11/12/2025
9:00 AM		11/13/2025
5:00 PM		3684Line Section 6 - McKenzie Plant - Fort Buford DownloadView Map
Maint11/7/2025
9:07 AM		11/4/2025
9:00 AM		11/14/2025
5:00 PM		3683Cabin Creek Station - Aggregate Storage Withdraw DownloadView Map
Maint11/6/2025
2:44 PM		11/10/2025
9:00 AM		11/10/2025
5:00 PM		3682Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint11/5/2025
11:51 AM		11/4/2025
9:00 AM		11/14/2025
5:00 PM		3681Cabin Creek Station - Aggregate Storage Withdraw DownloadView Map
Maint11/5/2025
10:53 AM		11/17/2025
9:00 AM		11/20/2025
5:00 PM		3680Hardin Compressor Station DownloadView Map
Maint11/3/2025
11:42 AM		11/3/2025
11:00 AM		11/17/2025
5:00 PM		3679Glen Ullin Compressor Station - Line Section 2 Download
Maint10/30/2025
4:52 PM		10/6/2025
9:00 AM		11/1/2025
5:00 PM		3678Line Section 6 - McKenzie Plant DownloadView Map
Maint10/30/2025
4:46 PM		11/12/2025
9:00 AM		11/13/2025
5:00 PM		3677ElkHorn Creek Compressor Station DownloadView Map
Maint10/30/2025
4:35 PM		11/11/2025
9:00 AM		11/12/2025
5:00 PM		3676ElkHorn Creek Compressor Station DownloadView Map
Maint10/27/2025
4:07 PM		9/11/2025
9:00 AM		11/14/2025
5:00 PM		3675Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint10/27/2025
11:51 AM		10/28/2025
9:00 AM		10/30/2025
5:00 PM		3674Cabin Creek Station - Aggregate Storage Withdraw DownloadView Map
Maint10/27/2025
10:21 AM		10/27/2025
9:00 AM		10/28/2025
5:00 PM		3673Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint10/24/2025
10:00 AM		11/4/2025
9:00 AM		11/4/2025
5:00 PM		3672Cabin Creek Station - Aggregate Storage Withdraw DownloadView Map
Maint10/24/2025
9:31 AM		10/27/2025
9:00 AM		10/27/2025
5:00 PM		3671Charbonneau Compressor Station-Deliveries to NBPL DownloadView Map
Maint10/22/2025
4:29 PM		10/20/2025
9:00 AM		10/24/2025
5:00 PM		3670Elk Basin Storage Field DownloadView Map
Maint10/22/2025
4:29 PM		10/20/2025
9:00 AM		10/24/2025
5:00 PM		3669Elk Basin Storage Field DownloadView Map
Maint10/22/2025
11:33 AM		10/22/2025
9:00 AM		10/31/2025
5:00 PM		3668Monarch Compressor Station - Storage Withdraw DownloadView Map
Maint10/22/2025
8:54 AM		10/21/2025
9:00 AM		10/23/2025
10:00 PM		3667Line Section 7 (Washburn Lateral) DownloadView Map
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
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
Maint9/11/2025
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
Maint9/9/2025
4:24 PM		9/23/2025
9:00 AM		9/23/2025
5:00 PM		3633Golva Compressor Station DownloadView Map
Maint9/9/2025
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
Maint9/8/2025
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
Maint9/3/2025
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
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
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
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
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
Maint8/11/2025
11:10 AM		5/22/2025
9:00 AM		9/30/2025
5:00 PM		3606Golva Compressor Station (Line Section 26) DownloadView Map

*** 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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