Oilspill Island is the fifth level in Skylanders: Spyro's Adventure. The Skylanders are brought here by Gurglefin after agreeing him to help save his fellow Gillmen from the Trolls, who have taken over the island to drill for oil which they give to Kaos for his machines.
Water Skylanders are strong in this area.
Wham-Shell Soul Gem
Boomer Soul Gem
Access Platform Beta
Water Skylanders are strong in this area
Drill Platform Delta
Tech Skylanders are strong in this area.