Rebecca, you did good getting that clause in your lease, and Ed, you are correct about the royalty being most important. You should all demand at least 25%. Think about this: why would you lease for a 25% royalty if you get a very small bonus when you can possibly join in as a working interest and get 100% of the proceeds after payout and a risk penalty? Of course, this depends on how many acres you have but works well when, say, you own 1/4 of minerals under a large tract.