Mike , when i changed my cam follower i had similar amounts of oil , i have also noticed that the more miles that are on the engine the quicker it goes black.
your fuel smell might just be the fuel around the area from the bleed valve mate , you might have had a tad on your fingers maybe if thats how you smelt your oil?
Without doin a propper flush out there will have been a bit left in I guess.
How many miles have you done Rob?