Is there any mutual or closed-end fund or ETF investing primarily or
predominantly in U.S. and/or Canadian Oil & Gas Royalty Trusts?

p.s.1: "No" would not be considered an acceptable answer :-)

p.s.2: I already know about OISDF, which trades in the Toronto stock
exchange and available in the U.S. via Pink Sheets. That doesn't count...
it has to be something a little more mainstream (nyse/nasdaq/amex).