Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-10-07 — OK
Operator
Magellan Pipeline Company, Lp
Cause
Equipment Failure
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$65,000
Incident datetime
2025-10-07 15:45
Report number
Location
OK
Narrative
While performing a semiannual valve inspection, a oneok operator noticed a gasoline odor while approaching a valve can. Upon further investigation it was identified the can valve was leaking. Operator immediately notified his supervisor, and the line was shut down. Initially the decision was made to attempt to add packing to the valve. However, to help prevent recurrence, the decision was made to replace the existing 6� weld-in valve a 6� 600 series flanged valve. The valve was replaced and the line brought back into service.
Detailed record list
Report Received Date
2025-11-06 00:00:00
Iyear
2025
Report Number
20250257
Supplemental Number
41555
Report Type
Original Final
Operator Id
22610
Name
Magellan Pipeline Company, Lp
Operator Street Address
100 West 5th Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2025-10-07 22:00:00
Time Zone
Central
Daylight Savings Ind
No
Location Latitude
46.344869
Location Longitude
-96.172417
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Gasoline (Non-Ethanol)
Unintentional Release Bbls
0.86
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2025-10-07 15:45:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2025-10-07 15:46:00
Restart Datetime
2025-10-09 19:50:00
Communication State Fed Ind
No
On Site Datetime
2025-10-07 15:45:00
Confirmed Discovery Datetime
2025-10-07 22:00:00
Nrc Rpt Datetime
2025-10-08 15:25:00
Nrc Rpt Num
144972
Additional Nrc Report Numbers
1445134
Ignite Ind
No
Upstream Action Taken
Operational Control
Upstream Oprtnl Cntrl Detail
Line Was Shut Down By Initiating A Stop To Mainline Pumping Unit And Rov�s Upstream Were Closed.
Downstream Action Taken
Operational Control
Downstream Oprtnl Cntrl Detail
Line Was Shut Down Initiating A Stop To Mainline Pumping Unit And Rov�s Downstream Were Closed.
Notify Qualified Indiv Ind
Yes
Qualified Indiv Notif Datetime
2025-10-07 16:00:00
Oil Spill Removal Org Ind
Yes
Osro Activated Datetime
2025-10-07 16:30:00
Osro Arrived On Site Dt
10/7/2025 18:30
Num Pub Evacuated
0
Pipe Fac Name
Alexandria To Grand Forks #1 6 Inch
Segment Name
Line Id 6265
Onshore State Abbreviation
Mn
Onshore Postal Code
55637
Onshore City Name
Fergus Falls
Onshore County Name
Otter Tail
Designated Location
Milepost
Designated Name
53.26
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
In Underground Enclosed Space (E.g. Vault)
Depth Of Cover
48
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Valve
Valve Type
Mainline
Valve Mainline Type
Gate
Valve Manufacturer
Wkm
Installation Year
1946
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
136
Est Cost Prop Damage
65000
Est Cost Emergency
18000
Est Cost Environmental
3000
Est Cost Other
0
Prpty
86136
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
340
Mop Psig
450
Mop Cfr Section
Subpart E Pressure Test �195.406(A)(3)
Maop Established Date
2023-09-29 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
No controllers' actions took place prior to the release.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
Seal (Not Pump Seal) Or Packing
Eq Additional Other Ind
Yes
Eq Additional Other Details
Original Valve Packing Became Brittle Causing Valve Not To Seal
Preparer Name
G*** C*********
Preparer Title
Regulatory Compliance Specialist Ii
Preparer Email
G**************@o****.com
Preparer Telephone
9183818066
Prepared Date
2025-11-06 00:00:00
Authorizer Name
R*** M****
Authorizer Telephone
9183822022
Authorizer Title
Regulatory Compliance Manager
Authorizer Email
R*********@o****.com
Narrative
While performing a semiannual valve inspection, a oneok operator noticed a gasoline odor while approaching a valve can. Upon further investigation it was identified the can valve was leaking. Operator immediately notified his supervisor, and the line was shut down. Initially the decision was made to attempt to add packing to the valve. However, to help prevent recurrence, the decision was made to replace the existing 6� weld-in valve a 6� 600 series flanged valve. The valve was replaced and the line brought back into service.
| Report Received Date | 2025-11-06 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250257 |
| Supplemental Number | 41555 |
| Report Type | Original Final |
| Operator Id | 22610 PHMSA Enforcement |
| Name | Magellan Pipeline Company, Lp |
| Operator Street Address | 100 West 5th Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2025-10-07 22:00:00 |
| Time Zone | Central |
| Daylight Savings Ind | No |
| Location Latitude | 46.344869 Google Maps OpenStreetMap |
| Location Longitude | -96.172417 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Gasoline (Non-Ethanol) |
| Unintentional Release Bbls | 0.86 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2025-10-07 15:45:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2025-10-07 15:46:00 |
| Restart Datetime | 2025-10-09 19:50:00 |
| Communication State Fed Ind | No |
| On Site Datetime | 2025-10-07 15:45:00 |
| Confirmed Discovery Datetime | 2025-10-07 22:00:00 |
| Nrc Rpt Datetime | 2025-10-08 15:25:00 |
| Nrc Rpt Num | 144972 NRC Report How to search |
| Additional Nrc Report Numbers | 1445134 |
| Ignite Ind | No |
| Upstream Action Taken | Operational Control |
| Upstream Oprtnl Cntrl Detail | Line Was Shut Down By Initiating A Stop To Mainline Pumping Unit And Rov�s Upstream Were Closed. |
| Downstream Action Taken | Operational Control |
| Downstream Oprtnl Cntrl Detail | Line Was Shut Down Initiating A Stop To Mainline Pumping Unit And Rov�s Downstream Were Closed. |
| Notify Qualified Indiv Ind | Yes |
| Qualified Indiv Notif Datetime | 2025-10-07 16:00:00 |
| Oil Spill Removal Org Ind | Yes |
| Osro Activated Datetime | 2025-10-07 16:30:00 |
| Osro Arrived On Site Dt | 10/7/2025 18:30 |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Alexandria To Grand Forks #1 6 Inch |
| Segment Name | Line Id 6265 |
| Onshore State Abbreviation | Mn |
| Onshore Postal Code | 55637 |
| Onshore City Name | Fergus Falls |
| Onshore County Name | Otter Tail |
| Designated Location | Milepost |
| Designated Name | 53.26 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | In Underground Enclosed Space (E.g. Vault) |
| Depth Of Cover | 48 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Valve |
| Valve Type | Mainline |
| Valve Mainline Type | Gate |
| Valve Manufacturer | Wkm |
| Installation Year | 1946 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 136 |
| Est Cost Prop Damage | 65000 |
| Est Cost Emergency | 18000 |
| Est Cost Environmental | 3000 |
| Est Cost Other | 0 |
| Prpty | 86136 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 340 |
| Mop Psig | 450 |
| Mop Cfr Section | Subpart E Pressure Test �195.406(A)(3) View CFR 49 §192 |
| Maop Established Date | 2023-09-29 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| Investigation Status | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate) |
| Investigation Status Details | No controllers' actions took place prior to the release. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | Seal (Not Pump Seal) Or Packing |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Original Valve Packing Became Brittle Causing Valve Not To Seal |
| Preparer Name | G*** C********* |
| Preparer Title | Regulatory Compliance Specialist Ii |
| Preparer Email | G**************@o****.com |
| Preparer Telephone | 9183818066 |
| Prepared Date | 2025-11-06 00:00:00 |
| Authorizer Name | R*** M**** |
| Authorizer Telephone | 9183822022 |
| Authorizer Title | Regulatory Compliance Manager |
| Authorizer Email | R*********@o****.com |
| Narrative | While performing a semiannual valve inspection, a oneok operator noticed a gasoline odor while approaching a valve can. Upon further investigation it was identified the can valve was leaking. Operator immediately notified his supervisor, and the line was shut down. Initially the decision was made to attempt to add packing to the valve. However, to help prevent recurrence, the decision was made to replace the existing 6� weld-in valve a 6� 600 series flanged valve. The valve was replaced and the line brought back into service. |
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