> I think it should be obvious that [Oregon mandatory gas attendants law] ... is at least marginally an increase in safety.
I don't agree that it's obvious and doesn't need substantiation. Note that I am not disagreeing with your claim, just asking for substantiation.
(You can easily Google to find out that of course there have been gas station explosions since 1951 in "the control group". Would some portion of them have been prevented by similar laws to Oregon's? Who knows; Oregon probably doesn't know, it was never Oregon's intent to run their regulations as a science experiment. It was Oregon's intent to deal with issues they saw in the past safety record of gas stations as they saw fit.)
Industrial substances need high standards. Within this calendar year we have been reminded of this repeatedly: train fires and derailment, the OceanGate submarine, the recent train bridge collapse carrying hazardous materials.
Gasoline can be fatal if consumed, is a known carcinogen, and is harmful to aquatic life so it needs regulation. Here is a safety sheet to warn you of the dangers https://lasierra.edu/fileadmin/documents/risk/safety/safety-...
It's important that we treat this substance with respect. Licensed operators should be the only ones handling it routinely. But of course, there's no surprise that Big Oil would like to socialize the risks and privatize the profits, speaking nothing of the job losses this will cause.
Therefore, Big Oil is not affected by this change and does not care about requiring or not requiring gas stations attendants.