Rookie needs guidance for compression test

Ok help me out with these results.
I am not real sure how accurate this is, as I got towards the last several Wet tests, I was having to crank way more times than the earlier tests.

1st things: my spark plugs are basically 6 weeks old. and I havent really driven more than about 20 miles. and maybe 3 hours worth of idling in the driveway.
1-5 all seem to have a whitish grayish coating to them? 6 was basically dark brown, sorta oily. 6 seems to have oil on it?
I will post a picture of the plugs.

2nd thing:
Compression test,First I did all cylinders dry, I let each one crank for about 5 cranks.
1 = 125
2 = 130
3 = 138
4 = 132
5 = 102 (checked twice)
6 - 120


Then I went back to the beginning and squirted couple drops of oil in. I would squirt, test it, then go onto the next, squirt, test etc...

Wet test:
1 - 113
2 - 120
3 - 132
4 - 115 (had to let this crank way more than previous, longer to get needle to stop)
5 - 117 (had to crank even more than #4 to get it to stop)
6 - 132 (had to crank like #5)

I am not sure what is going on. If I didnt do this right or what?
I am thinking maybe I need to redo this test tomorrow?

I do not have a battery charger, but the battery is only a few months old.
ideas?