Katy, you are in the drivers seat in a sale. You could say that you require the runsheet before you would even consider selling. Tell them if there is no runsheet, that they should stop calling. That if they continue to call you will send them a registered letter telling them to stop and if the continue you will report them for harassment, at which point they will have alot harder time trying to buy your minerals and all of the time and expense up to now will be wasted. I can't stop people from trying to pull the wool over my eyes but nothing says I have to stand still for it or assist or give them a chance to do so. I don't go in for alot of this secret agent, land/oil company stuff. In my opinion we can drag it all out into the light of day and do business that benefits both parties or we can keep secrets and I will just keep what I have, which was what I was doing, when you called me! At the first sign of furtiveness, I am done with you. Frankly, I don't like doing business with anyones agent because they don't have the authority to give me what I want even if their employer would agree to what I want so I lose patience with them and the secret agent tripe.
I usually just tell them no. When they call back I tell them I'm glad they decided to give me what they want and when they say that is not why they are calling and they want me to reconsider, I say ok, take three seconds and say no again, hang up and put it out of my mind.
I have had some reasonable offers a little low but worth considering, but when they say they have to know by friday, I just tell them immediately the answer is no because it's too important a decision to rush. They say monday then and I say, still no. I find the use of such sales/buying tactics mildly insulting. If they insist that they really have to have the deal done by a certain time, I tell them no and don't call me again. I wouldn't want them to make liars out of themselves, and I don't want to do business with someone who tell lies. Who wants to, or thinks there will be a good result from doing business with someone who is ready to lie to you, and probably already has?
Look at it this way, you have minerals that someone wants, they hire a landman/company to obtain your minerals. If you tell them to go climb a tree, who is in trouble? If a landman/company repeatedly fails to get results, what do you think will happen? When the landman has to tell their boss or employer that the mineral owner refuses to talk to them anymore, who is in trouble here? The mineral owner is not the one in trouble. I wish every mineral owner would take a step back and objectively look at who you are talking to, the hired hand of those who want to buy what you have, they have the power to negotiate so you get less but not the power to give you more, even if their employer would agree! Why should you even talk to them other than to tell them to give their absolute best offer and you will decide yes or no, and if the answer is no, you never want to hear from them again. Your time has value too, the landman gets paid for his time, don't let them waste yours.