OCEAN

1986 - Ocean 7" - 4.41
1986 - Human/Ocean 7" - 5.08

OCEAN (EXTENDED VERSION)

1986 - Ocean 12" - Italian Edition - 7.28
1986 - Ocean 12" - Euro Edition - 6.58
1998 - The Ice Curtain 2CD - 7.09

OCEAN (LIVE)

2010 - Not Of This World 3CD - 8.01

OCEAN (7")

2009 - Odyssey Europa 2CD/4CD - 5.56

OCEAN (7" VERSION)

1986 - Ocean 12" - Euro Edition - 4.32

All different versions/mixes, except The Ice Curtain version that is the same of the original 12" vinyl and Odyssey Europa version that is the same of the original 7" vinyl.
Ocean (Live) is a live version.