Your Opinion About A New Mexico Inheritance

Would like to hear opinions in regards to the following scenario:

William inherited 1/3rd of mineral rights from a sister along with 2 other sisters 1/3rd each.

William passed, leaving his wife Sophia her 3 children from a previous marriage and their son George. William never formally adopted the 3 step children. The minerals were inherited 75% to his son George and 25% to his wife Sophia.

Sophia passed, her minerals were inherited 6.25% each to her 4 children, leaving George with 81.25%.

George passed without having never been married and no children in 1968. New Mexico Law, I have been told, was based on the "Parentelic"(sic) system which I understand would make Georges inheritance go to his parent (their heirs) equally as separate property;

I don't think there is any question that Sophias 3 children would inherit her additional 40.625% for a total of a little under 20% each.

There were no known wills or probates involved in any of these deaths.

At this point the question is: Who would inherit through William, as New Mexico Law at the time made no specific comment regarding 1/2 siblings.

The above question is keeping the driller from paying on any mineral rights (even the % not in question, on a producing well) and seems to be willing to leave the situation as is, which I understand to some degree.

Would love to hear all you comments, experiences and suggestions.

If the well is already producing, it sounds like maybe you need to hire an attorney. He should be paying on the % not in question. Maybe an injunction to 'stop production' would speed him along?

I would *think* that George's share would revert to his mother, then to her children, unless the state claims it all. But that is just an assumption, based on Okla. laws I've heard, and I'm not an attorney. (Everyone could have an opinion, just not necessarily the correct answer according to law.)