They didn’t need to sell the mineral rights because they never owned them. They had people on their land, which they did own, and accepted payment instead of chasing them off. Probably even thought it was a good deal at the time. And that’s what I’ve been getting at this whole time. These people are quibbling over who owns what and who should compensate who instead of questioning the bigger issue of mining for hazardous resources immediately adjacent to food production. Nobody gives a shit about anyone down the line. Parents, landowners, oil companies, nobody.