Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-06-16 — TX
Operator
Et Crude Operating Llc
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5,000
Incident datetime
2025-06-16 00:00 UTC
Report number
Location
TX
Narrative
On 05/23/25 at 15:15, crude oil was discovered on the ground beneath station piping at tank 2538 cushing tank farm. The leak was coming from a pinhole at the 6 o'clock position on the cimarron 8-inch line. Approximately 80 barrels of crude oil was released on the ground. Cleanup contractors removed product and contaminated soil. The leak was repaired with a plidco clamp. The line was drained, and the failed section was cut out and sent to a third party lab for analysis. The line remains shutdown. The cause of the leak is still under investigation. A supplemental report will be submitted once the lab report and investigation are completed. Supplemental & final: the metallurgical analysis determined that the failure was due to an internal corrosion pinhole at the 6 o'clock position. The cause of the internal corrosion was microbial influenced corrosion (mic). The mic occurred due to infrequent flow of the line. To prevent reoccurrence, mechanical integrity will inspect terminal lines regularly and operations will introduce flow or flush the line regularly.
Detailed record list
Report Received Date
2025-06-16 00:00:00
Iyear
2025
Report Number
20250148
Supplemental Number
41266
Report Type
Supplemental Final
Operator Id
31476
Name
Et Crude Operating Llc
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
36.0175
Location Longitude
-96.753889
Commodity Released Type
Crude Oil
Unintentional Release Bbls
80
Recovered Bbls
80
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
No
Nrc Rpt Num
1432002
Additional Nrc Report Numbers
1432157
Ignite Ind
No
Notify Qualified Indiv Ind
Yes
Oil Spill Removal Org Ind
Yes
Osro Arrived On Site Dt
5/23/2025 16:55
Num Pub Evacuated
0
Pipe Fac Name
Cushing Tank Farm
Segment Name
Cimarron Line
Onshore State Abbreviation
Ok
Onshore Postal Code
74023
Onshore City Name
Not Within A Municipality
Onshore County Name
Payne
Designated Location
Survey Station No.
Designated Name
0+00
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
42
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Puddle Weld Ind
No
Pipe Diameter
8
Pipe Wall Thickness
0.322
Pipe Smys
52000
Pipe Specification
Api 5l Grade X52
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Fusion Bonded Epoxy(Fbe)
Coating Applied Ind
No
Installation Year
2018
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
50
Est Cost Prop Damage
5000
Est Cost Emergency
60000
Est Cost Environmental
30000
Est Cost Other
0
Prpty
95050
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
117
Mop Psig
285
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2018-01-01 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction 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
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
A review of the accident determined that there were no control room actions that contributed to the event.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
Internal Corrosion
Internal External
Internal Corrosion
Int Visual Exam Results
Localized Pitting
Int Microbiological Ind
Yes
Int Metallurgical Basis Ind
Yes
Int Low Point Pipe Loc Ind
Yes
Corrosion Inhibitors
Yes
Corrosion Lining
No
Cleaning Dewatering
Not Applicable - Not Mainline Pipe
Corrosion Coupons
Not Applicable - Not Mainline Pipe
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
T*** N*******
Preparer Title
Director - Dot Compliance
Preparer Email
T************@e*************.com
Preparer Telephone
713-989-7126
Prepared Date
2025-08-15 00:00:00
Authorizer Name
T*** N*******
Authorizer Telephone
713-989-7126
Authorizer Title
Director - Dot Compliance
Authorizer Email
T************@e*************.com
Narrative
On 05/23/25 at 15:15, crude oil was discovered on the ground beneath station piping at tank 2538 cushing tank farm. The leak was coming from a pinhole at the 6 o'clock position on the cimarron 8-inch line. Approximately 80 barrels of crude oil was released on the ground. Cleanup contractors removed product and contaminated soil. The leak was repaired with a plidco clamp. The line was drained, and the failed section was cut out and sent to a third party lab for analysis. The line remains shutdown. The cause of the leak is still under investigation. A supplemental report will be submitted once the lab report and investigation are completed. Supplemental & final: the metallurgical analysis determined that the failure was due to an internal corrosion pinhole at the 6 o'clock position. The cause of the internal corrosion was microbial influenced corrosion (mic). The mic occurred due to infrequent flow of the line. To prevent reoccurrence, mechanical integrity will inspect terminal lines regularly and operations will introduce flow or flush the line regularly.
| Report Received Date | 2025-06-16 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250148 |
| Supplemental Number | 41266 |
| Report Type | Supplemental Final |
| Operator Id | 31476 PHMSA Enforcement |
| Name | Et Crude Operating Llc |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 36.0175 Google Maps OpenStreetMap |
| Location Longitude | -96.753889 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 80 |
| Recovered Bbls | 80 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Communication State Fed Ind | No |
| Nrc Rpt Num | 1432002 NRC Report How to search |
| Additional Nrc Report Numbers | 1432157 |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | Yes |
| Oil Spill Removal Org Ind | Yes |
| Osro Arrived On Site Dt | 5/23/2025 16:55 |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Cushing Tank Farm |
| Segment Name | Cimarron Line |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 74023 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Payne |
| Designated Location | Survey Station No. |
| Designated Name | 0+00 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 42 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Puddle Weld Ind | No |
| Pipe Diameter | 8 |
| Pipe Wall Thickness | 0.322 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5l Grade X52 |
| Pipe Seam Type | Erw - High Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Fusion Bonded Epoxy(Fbe) |
| Coating Applied Ind | No |
| Installation Year | 2018 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 50 |
| Est Cost Prop Damage | 5000 |
| Est Cost Emergency | 60000 |
| Est Cost Environmental | 30000 |
| Est Cost Other | 0 |
| Prpty | 95050 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 117 |
| Mop Psig | 285 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2018-01-01 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction 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 | 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 | A review of the accident determined that there were no control room actions that contributed to the event. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | Internal Corrosion |
| Internal External | Internal Corrosion |
| Int Visual Exam Results | Localized Pitting |
| Int Microbiological Ind | Yes |
| Int Metallurgical Basis Ind | Yes |
| Int Low Point Pipe Loc Ind | Yes |
| Corrosion Inhibitors | Yes |
| Corrosion Lining | No |
| Cleaning Dewatering | Not Applicable - Not Mainline Pipe |
| Corrosion Coupons | Not Applicable - Not Mainline Pipe |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | T*** N******* |
| Preparer Title | Director - Dot Compliance |
| Preparer Email | T************@e*************.com |
| Preparer Telephone | 713-989-7126 |
| Prepared Date | 2025-08-15 00:00:00 |
| Authorizer Name | T*** N******* |
| Authorizer Telephone | 713-989-7126 |
| Authorizer Title | Director - Dot Compliance |
| Authorizer Email | T************@e*************.com |
| Narrative | On 05/23/25 at 15:15, crude oil was discovered on the ground beneath station piping at tank 2538 cushing tank farm. The leak was coming from a pinhole at the 6 o'clock position on the cimarron 8-inch line. Approximately 80 barrels of crude oil was released on the ground. Cleanup contractors removed product and contaminated soil. The leak was repaired with a plidco clamp. The line was drained, and the failed section was cut out and sent to a third party lab for analysis. The line remains shutdown. The cause of the leak is still under investigation. A supplemental report will be submitted once the lab report and investigation are completed. Supplemental & final: the metallurgical analysis determined that the failure was due to an internal corrosion pinhole at the 6 o'clock position. The cause of the internal corrosion was microbial influenced corrosion (mic). The mic occurred due to infrequent flow of the line. To prevent reoccurrence, mechanical integrity will inspect terminal lines regularly and operations will introduce flow or flush the line regularly. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA