Dispersants (IMAGE) American Chemical Society Caption Underwater oil dispersants applied to the Deepwater Horizon spill mixed with oil spewing out of the damaged wellhead and remained in the deep ocean for months without degrading. Credit Jack Cook, Woods Hole Oceanographic Institution Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.