Ms. Pogue, first, I would not hand over an executed lease in exchange for an order of payment, bank draft or bill of exchange as they are all unenforceable IOU’s and it’s completely at the lessee’s discretion if they EVER pay you. Demand a form of real payment before you hand over the executed lease. I didn’t and I’m having to sue the lessee and just sent my lawyers the second large check. You don’t want to have to sue, learn from my mistake. I think it’s possible that you don’t own 100% of the mineral interest in the 64 acres. The only way to find out how much you own is to follow the chain of title and look for reservations, sales and rights being divided between heirs. If you ask whoever is wanting to lease you, they might explain to you how they arrived at the net acres calculation. As to the lease bonus, it is likely for what is called a paid up lease, which means that they are paying all 5 years rental payments in advance. If operations to commence drilling that results in production, or continuous operations in an attempt to obtain production occours, then the lease extends into the future as long as production or operations deemed continuous occour, with no more payments except for royalty percentage for minerals produced. With no production or operations in the 5 years, the lease will expire and you can then lease and recieve a bonus again. I hope this helps.