A contract worker performing routine maintenance on an offshore gas pipeline was killed Saturday and two other workers were injured.

The accident occurred 6 miles south of Timbalier Bay off the southeast coast of Louisiana, the U.S. Coast Guard said.

The line belongs to Chevron Pipe Line Co.

Chevron hasn’t identified any of the victims and didn’t provide details about what happened. It said it was launching an investigation.

A  spokesman for the Louisiana Department of Environmental Quality, Gregory Langley, said a handling line had a valve failure Saturday around 11:10 a.m. local time.

He said there didn’t appear to be any environmental impact as a result of the incident.

A Chevron Pipe Line Co. statement said the company “regrets this tragic incident. Our thoughts and prayers are with the contractor’s family and friends.”

The company has shut down the natural-gas pipeline involved. The line feeds Gulf of Mexico production to the Henry Hub storage and delivery point in Erath, Louisiana.

Chevron Pipelines said gas flows through the pipeline have been halted until the investigation and repairs can be completed. The shutdown has minimal effect on gas production in the Gulf of Mexico, the company said.

Henry Hub has onward links to several interstate pipelines. The price of gas at Henry Hub is used as the  benchmark for  U.S. gas pricing.

Chevron Pipelines said it is rerouting natural gas that would have moved through the closed line to other pipelines.

The closed line is being depressurized, Chevron said.


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