I just looked at Walmart today too and couldn't find it either. The lady in the hair care section just sort of looked at me like I was weird. I didn't see it in the cooking oil section either.
Oh well! Right now I have been mixing hair lotion with baby oil and I'm happy with that for detangling manes and tails.
I was using the "Pink" hair lotion, which I really like, but was looking for an even cheaper alternative. I found a cheaper version of Pink but I wasn't happy with it. So I mixed a little baby oil in it and shook it up (because I like a shine) and I am happy with that so far.