Fieldwood Energy LLC confirmed Monday that one person was fatally injured on Saturday (May 15) at the Eugene Island 158 No. 14 facility in the Gulf of Mexico (GOM). 

The unmanned platform is 50 miles south of Marsh Island, LA. 

The unidentified contractor was involved in a “nonemergency casing pressure test on a shut-in well,” Fieldwood said. “No other personnel were injured, and the shut-in well remains secure and poses no threat of environmental harm.”

Casing pressure tests in general are used to determine the integrity of a shut-in well before it is allowed to begin operating again.

An investigation is underway, and Fieldwood said it was working with the “appropriate regulatory agencies. We have no additional details to share at this time.”

Houston-based Fieldwood has one of the biggest footprints of any operator in the GOM. Production most recently was estimated at more than 130,000 boe/d. 

The company has stakes in about 500 blocks covering two million acres gross. It has more than 1,000 wells and 500-plus operated platforms in the GOM. 

Last August Fieldwood filed for voluntary bankruptcy, indicating it planned a comprehensive restructuring.