Here is an Imgur album containing info on the oil-based stain instructions for the stain that I am using:
It specifically says:
Do NOT sand between coats.
I'm reading an article on Home Depot's website which states the opposite:
Begin by staining the entire top and sides of the butcher block. Wipe away any excess with a rag. Let dry. If you live in a humid climate, work with air conditioning to keep the humidity away during drying.
When the stain is dry, lightly sand with a piece of brown paper to remove any slight blemishes. Repeat staining and sanding about six times to achieve the depth of color that you desire. If the color is duller than you like, adding a sealer will brighten the finish.
I have a 10' walnut butcher block (which I now know is not really butcher block) counter that I will be staining:
Should I sand between stain coats or not?