The Deepwater Horizon oil spill released around 172 million gallons of crude oil into the Gulf in 2010. In the following months, responders used every tool at their disposal to remove what they could from the environment. Simultaneously, scientists worked to track the path of what remained. The Sea Grant Oil Spill Science Outreach Program’s latest publication Deepwater Horizon: Where did the oil go? summarizes what researchers have discovered about where the spilled oil traveled after it escaped from the Macondo well and what processes carried it along its path.