Chevron has said that a fire following a gas explosion at its Funiwa well just off the coast of Nigeria had gone out by itself.
"The site of the Funiwa 1A natural gas well offshore Nigeria ceased burning on Friday, March 2. The well stopped flowing on its own," the statement said.
"CNL (Chevron Nigeria Limited) has detected no natural gas flowing from the well since the fire ceased burning and is monitoring the area continuously."
The fire was becoming a headache for Chevron, which had drilled a relief well to try to stop it but appeared unable to quell the flames for weeks.
Local communities said the fire had killed large numbers of fish and polluted the air.
Nigerian President Goodluck Jonathan last week visited the site just offshore from the labyrinthine creeks and swamps of the Niger Delta, and he urged the company to give more aid to the communities affected.
Two contractors went missing after the initial gas explosion in January, presumed dead.
Chevron has said that equipment failure may have been the cause of the fire.
Environmental campaigners routinely accuse oil companies of not following best practice in Nigeria, where accidents and oil spills are far more common than in many other nations.