The Nigerian National Petroleum Corporation said in a statement on Tuesday an explosion hit its Oil Mining Lease 40 field with no casualties or significant spill.
However, production will be cut by about 10,000 barrels per day.
The oil company did not say for how long production would be affected.
The affected facility is managed by NNPC partners, Elcrest Exploration and Production Nigeria Limited.
The incident occured during evacuation at Gbetiokun Early Production facility.
NNPC spokesman, Kennie Obateru, stated that there were no fatalities, injuries or significant spill after the blast.
“There was, however, significant damage to the marine storage vessel, MT Harcourt, which will impact production by about 10,000barrels of oil per day”, he said in a statement Tuesday night.