Ed,
It’s hard to get 20% when everyone around you is taking 3/16. Usually it works like this.
You want, let’s say, #1, ($500 and 3/16) #2, you want ($300 and 20%), so the oil company figures out what is going to be best for them. It’s an “either” - “or” thing.
If they are leasing to resell or trade, then they want the 3/16 or less only, as a 20% lease is harder to sell. If the wells in the area are all coming in at 800 bbl, they may need your property and be willing to pay more if they plan on pooling. Otherwise, OCC will decide what they pay and what you get.
If wells are only making 50 bbl in your area, then OCC may say it’s only worth $200 with 3/16 if they pool you.
There isn’t anything cut and dry in the oil business.