The Bureau of Safety and Environmental Enforcement says 2,100 barrels of oil have spilled into the Gulf of Mexico.
The BSEE says Shell Offshore Inc. reported a sheen near four of its wells, about 100 miles off the coast of Louisiana.
An underwater pipe system flowing to Shell's Brutus oil platform leaked almost 90,000 gallons of crude oil.
The BSEE is still investigating the spill but says there have been no injuries or evacuations.
