Two Missing in Gulf Oil Rig Blast --Black Elk Energy CEO, John Hoffman: 'Wrong tool' was used - contract workers should have used a saw instead of a torch. 16 Nov 2012 Ships and helicopters are searching for two oil rig workers who disappeared when an explosion rocked a gulf oil rig off the coast of Louisiana and set it on fire, Coast Guard officials said. Eleven other crew members were flown to hospitals, and four of them are listed in critical condition. No one has been confirmed dead. Earlier reports by the Coast Guard that as many as 15 people were unaccounted for were resolved as the workers were located.