The Coast Guard says an estimated 76 gallons of crude oil spilled from an oil platform operated by Apache Corp. off the coast of southeast Louisiana.

Petty Officer 2nd Class Bill Colclough said the spill was reported to authorities on Tuesday.

Colclough said a sheen created by the spill has dispersed and none of the spilled oil was recoverable.

The site, designed as Grand Isle Block 43, is west of BP’s Macondo well, which spewed more than 200 million gallons of oil after an explosion aboard the BP-leased rig Deepwater Horizon in April 2010.