5 acres in leon county Texas

I have mineral rights to 5 acres in Leon county, J.I. McDaniel Survey A646. I have been getting several letters lately about selling the mineral rights. One offer was $5250.00 but that was before the war broke out with Iran. I guess my question is this a fair offer or should I persure other alternatives or higher price. I am have no experience in the topic. Thank you so much for your input.