I already have shares in gas wells but only by happenstance.
When I was young, a gas well company drilled several wells throughout my old neighborhood. Daddy was all gaga over the idea; they had him believing those drillings were Heaven-sent, in lieu of money trees. Not! They drilled 'em, then stoppped using 'em. Why? I haven't a clue. But from my personal experience gas wells are a crock of crackers! Don't know anything about oil wells.
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https://www.amazon.com/author/bonnie.mill-lemke
https://kdp.amazon.com/en_US/bookshelf