This was at about 95k miles when I had to change the oil pan on my 02 ALH Summer 2013.
Those pictures are interesting to say the least. It's almost like the oil turned to tar and left a coating of it only on some surfaces but not others.
I'm not sure how that's even possible. I would think the entire surface under the valve cover would be coated but it's not.
Interesting to say the least.