There are good NG midstream plays out there...EPD is one I’ve lately added (though it has crude pipelines as well).
I view refineries and pipelines similar to railways—critical infrastructure that is too difficult (regulations) and/or onerous (expensive) to replace these days. Look at how old most of the refineries in the U.S. are. Look at how difficult it is to get a new pipeline approved in lots of places in U.S. (DAPL, Keystone). This results in moats around existing players, especially in some geographies.
These strike me as tollbooth type businesses whose fees should grow with inflation (midstream + refineries) with minimal maintenance capex needs (midstream, not refineries). I’ll take the double digit payout in some cases. Gasoline, jet fuel, diesel, marine fuel, etc are not going away any time soon.
MPC, the refiner with the largest U.S. refining capacity, with $16.5B coming its way (will result in over $5B net cash) seems like a safe way to get paid >7% a year even if refining takes some time to come back. Remember that MPLX debtholders do not have recourse to MPC assets.