Hi. You’ve got to do some basic groundwork before any advice is going to be of much value.
How much oil can you produce, what are it’s qualities, what sets it apart, how would you price it, which stores would you want to sell through, what would the format be, would it be branded, what’s the pricing etc.?
If you want to make a start, visit some of your target stores, arrange to meet with them and see if there’s some sort of arrangement that might work.
Armed with that knowledge, put some sort of rudimentary plan together and then go to it.