"ONEOK ROCKIES MIDSTREAM, LLC"
gas_transmission Incident — — November 13, 2025
Incident Information
| Incident Date | November 13, 2025 |
| Operator | "ONEOK ROCKIES MIDSTREAM, LLC" |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 48.29207, -103.56041 |
Cause
| Cause | MATERIAL FAILURE OF PIPE OR WELD |
| Subcause | ORIGINAL MANUFACTURING-RELATED (NOT GIRTH WELD OR OTHER WELDS FORMED IN THE FIELD) |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $4,000 |
| Emergency Response | $0 |
| Other Costs | $1,800 |
Location Map
Incident Narrative
"ON NOVEMBER 13, 2025, ONEOK GAS CONTROL REPORTED A PRESSURE DROP ON THE 16-INCH STEEL TYPE C EAST FORK DISCHARGE PIPELINE. AN OPERATOR RESPONDED TO EAST FORK COMPRESSOR STATION FOR AN EMERGENCY SHUTDOWN (ESD). A SECOND OPERATOR WAS DISPATCHED TO ISOLATE THE PIPELINE AT A NEARBY BLOCK VALVE. THE PIPELINE WAS ISOLATED, AND OPERATIONS CONFIRMED THE RELEASE LOCATION. THE AREA AROUND THE POINT OF RELEASE WAS BARRICADED TO PREVENT ENTRY. WE DEEMED A REPORTABLE EVENT HAD OCCURRED. THE DAMAGED PIPE MATERIAL WAS SENT FOR METALLURGICAL ANALYSIS. THERE WERE REPAIRS MADE TO THE AFFECTED SECTION. THE PIPELINE OPERATING PRESSURE WAS DE-RATED PENDING ANALYSIS RESULTS. A SUPPLEMENTAL WILL BE SUBMITTED WAS ONCE RESULTS FROM THE INVESTIGATION HAVE BEEN RECEIVED AND REVIEWED. SUPPLEMENTAL- THE RESULTS OF THE METALLURGICAL ANALYSES REVEALED THAT THE IN-SERVICE FAILURE WAS ASSOCIATED WITH LATENT MECHANICAL DAMAGE ON THE PIPE BODY. THE FAILURE ORIGINATED WITHIN A GOUGE THAT WAS 1.7 FEET LONG AT AN ORIENTATION OF 7:30. SHEAR CRACKS DEVELOPED IN THE GOUGE WHICH ULTIMATELY CAUSED THE FAILURE. THE SOURCE OF THE GOUGE IS UNKNOWN."
About This Pipeline Incident
Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.