engine knocking???? 2002 3.0v6 pls help

[fettersp]

I have a horrible knocking sound in the engine. CEL codes displayed misfire in cylinder 1 . took off both belts too see if it was that and it was not. ran a compression test and got compression in the range of 145 to 180. most tests were 150is except two cylinders. some squeaking sounds when the engine is first started. a lot of oil in the COP wells covering the spark plugs.  what could be the issue?  I plan on fixxing up the suv as a project.