An explosion at an Oklahoma oil rig on December 19 killed two workers and injured three others.
The blast happened around 1 a.m. on the deck of a rig owned by Texas-based Pablo Energy located about two miles from Coalgate, Oklahoma.
State fire marshal officials said the fire was extinguished and the U.S. Occupational Safety and Health Administration arrived to help investigate the accident.
“We’re just trying to put the puzzle pieces on the table and (are) looking at them,” Oklahoma fire marshal chief of operations Sam Schafnitt told the Star Telegram.
Gary Keenen, 26, and Kelsey Bellah, 27, died in the accident.
Two other workers were airlifted to an Oklahoma City hospital after suffering major burns.
A third worker suffered burns to his hands.
The names of the injured workers have not been released yet.
All five men were employed by Oklahoma-based Dan D. Drilling.
There were no reports of a spill or environmental damage.
Neither Pablo Energy nor Dan D. Drilling have commented on the accident.