HILAND CRUDE, LLC — Hazardous liquid gravity and reporting-regulated-only — incident on 2022-05-05

Hazardous liquid gravity and reporting-regulated-only incident in WATFORD CITY, MCKENZIE County, ND. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 0.2 CRUDE OIL released, $2,500 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20220040.

Operator ID: 32619.

Reported incident date: 5/5/2022 9:00.

Cause detail: THREADED CONNECTION/COUPLING FAILURE

Cause detail: ON 5/5/2022, AT 9:00 AM HILAND CRUDE OPERATOR RECEIVED A CALL FROM THE PRODUCER'S OPERATOR AT THE EAST CAMP CREEK WELL SITE STATING THAT A LEAK HAD OCCURRED. AT 09:15 HILAND CRUDE OPERATOR ARRIVED ON SITE AND CONFIRMED DISCOVERY OF THE LEAK. OPERATOR INITIATED THE EMERGENCY RESPONSE LINE (ERL) PROCESS AND DURING THE ERL CALL, THE ACCIDENT WAS DEEMED REPORTABLE AND THE INVESTIGATION COMMENCED. THE INVESTIGATION CONCLUDED THAT THE LOW-PRESSURE DAMPENER LOCATED AT THE LOW PRESSURE PUMP CONNECTION HAD A PINHOLE IN THE BLADDER. CONSEQUENTLY, CRUDE OIL FILLED THE DAMPENER BETWEEN THE BLADDER AND THE HOUSING. THE CRUDE OIL BETWEEN THE BLADDER AND THE HOUSING EXPERIENCED THERMAL EXPANSION DUE TO DIRECT SUNLIGHT EXPOSURE AND BECAUSE OF THAT ONE STUD BROKE ON THE DAMPENER ALLOWING CRUDE OIL TO LEAK. OPERATIONS REPLACED THE DAMPENER AND THE WELL SITE WAS BACK ON SERVICE AT 1:40PM ON 5/5/2022.