Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2025-08-19 — OK
Operator
Oneok Westex Transmission, Llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$2,500
Incident datetime
2025-08-19 00:00 UTC
Report number
Location
OK
Narrative
At 8:05 a.M., a fasken operator notified oneok pipeline control center of a gas release at the fasken meter setting. Upon receiving the report, pcc called the local measurement technician to head to the site. The tech arrived on site at 9:25 a.M and witnessed a prv releasing gas. The tech isolated the prv at 9:27 a.M. After being isolated, the pressure data was trended, and a pressure change was noted to have occurred at 5:51 a.M. The relief for the valve was removed and sent off for analysis. At this time there are no plans to reinstall a new relief as this is a redundant form of pressure control for this setting. Once analysis results have been received a supplemental will be submitted.
Detailed record list
Report Received Date
2025-08-19 00:00:00
Iyear
2025
Report Number
20250089
Supplemental Number
41275
Report Type
Original
Operator Id
31531
Name
Oneok Westex Transmission, Llc
Operator Street Address
100 West Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Time Zone
Central
Daylight Savings Ind
No
Location Latitude
32.21378
Location Longitude
-102.27714
Nrc Rpt Num
1437930
Additional Nrc Report Numbers
1437953
Commodity Released Type
Natural Gas
Unintentional Release
17667
Intentional Release
165
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
No
Shutdown Explain
The Component Was Isolated From The Pipeline
Communication State Fed Ind
No
Ignite Ind
No
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
79714
Onshore City Name
Not Within A Municipality
Onshore County Name
Andrews
Designated Location
Milepost
Designated Name
27.91
Pipe Fac Name
Fasken Meter Site
Segment Name
Meter Number 4827024
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Regulator/metering Station Equipment And Piping
Item Involved
Valve
Valve Type
Relief Valve
Installation Year
2025
Manufactured Year
2025
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Failed To Reseat
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
80
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
36217
Est Cost Intentional Release
338
Est Cost Prop Damage
2500
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
2.05
Prpty
39055
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
636
Gas Flow In Pipe In Mcf
15600
Mop Psig
1441
Mop Cfr Section
192.619(A)(2)
Maop Established Date
2025-06-08 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
Yes
Accident Identifier
Controller
Operator Type
Operator Employee
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 had taken place prior to the release
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Relief Valve Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Still Under Investigation
Preparer Name
G*** C*********
Preparer Title
Regulatory Compliance Specialist
Preparer Email
G**************@o****.com
Preparer Telephone
918-519-5364
Authorizer Name
R*** M****
Authorizer Title
Regulatory Compliance Manager
Authorizer Telephone
9183818066
Authorizer Email
G**************@o****.com
Narrative
At 8:05 a.M., a fasken operator notified oneok pipeline control center of a gas release at the fasken meter setting. Upon receiving the report, pcc called the local measurement technician to head to the site. The tech arrived on site at 9:25 a.M and witnessed a prv releasing gas. The tech isolated the prv at 9:27 a.M. After being isolated, the pressure data was trended, and a pressure change was noted to have occurred at 5:51 a.M. The relief for the valve was removed and sent off for analysis. At this time there are no plans to reinstall a new relief as this is a redundant form of pressure control for this setting. Once analysis results have been received a supplemental will be submitted.
| Report Received Date | 2025-08-19 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250089 |
| Supplemental Number | 41275 |
| Report Type | Original |
| Operator Id | 31531 PHMSA Enforcement |
| Name | Oneok Westex Transmission, Llc |
| Operator Street Address | 100 West Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Time Zone | Central |
| Daylight Savings Ind | No |
| Location Latitude | 32.21378 Google Maps OpenStreetMap |
| Location Longitude | -102.27714 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1437930 NRC Report How to search |
| Additional Nrc Report Numbers | 1437953 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 17667 |
| Intentional Release | 165 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Status When Identified | Normal Operation, Includes Pauses During Maintenance |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | The Component Was Isolated From The Pipeline |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Num Pub Evacuated | 0 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79714 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Andrews |
| Designated Location | Milepost |
| Designated Name | 27.91 |
| Pipe Fac Name | Fasken Meter Site |
| Segment Name | Meter Number 4827024 |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Regulator/metering Station Equipment And Piping |
| Item Involved | Valve |
| Valve Type | Relief Valve |
| Installation Year | 2025 |
| Manufactured Year | 2025 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Failed To Reseat |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 80 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 36217 |
| Est Cost Intentional Release | 338 |
| Est Cost Prop Damage | 2500 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 2.05 |
| Prpty | 39055 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Wildlife Impact Ind | No |
| Accident Psig | 636 |
| Gas Flow In Pipe In Mcf | 15600 |
| Mop Psig | 1441 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 2025-06-08 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | No |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | Yes |
| Accident Identifier | Controller |
| Operator Type | Operator Employee |
| 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 had taken place prior to the release |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Relief Valve Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Still Under Investigation |
| Preparer Name | G*** C********* |
| Preparer Title | Regulatory Compliance Specialist |
| Preparer Email | G**************@o****.com |
| Preparer Telephone | 918-519-5364 |
| Authorizer Name | R*** M**** |
| Authorizer Title | Regulatory Compliance Manager |
| Authorizer Telephone | 9183818066 |
| Authorizer Email | G**************@o****.com |
| Narrative | At 8:05 a.M., a fasken operator notified oneok pipeline control center of a gas release at the fasken meter setting. Upon receiving the report, pcc called the local measurement technician to head to the site. The tech arrived on site at 9:25 a.M and witnessed a prv releasing gas. The tech isolated the prv at 9:27 a.M. After being isolated, the pressure data was trended, and a pressure change was noted to have occurred at 5:51 a.M. The relief for the valve was removed and sent off for analysis. At this time there are no plans to reinstall a new relief as this is a redundant form of pressure control for this setting. Once analysis results have been received a supplemental will be submitted. |
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