Need help determining value of our land and mineral rights

I have property in Reeves also, but I am confused by your statement that you have a gas lease and an oil lease. Usually, the lease is for oil & gas, not one or the other. Can't produce oil without getting gas, I don't think. There has been a large run up in prices, but if you do not need the money, I would hold the interests. Depending on the location of your acreage, you could be looking at amounts of $5k to $10k per acre. Anything less than that, I would simply trash.