> My big question is, I don't understand why the oil companies haven't gotten on board. Why aren't we seeing more and more L3 chargers at gas stations?
I'd guess that in the US one factor might be that a large fraction of gas stations are also convenience stores and most of them make more money from the convenience store side of the business than from the gas side of the business.
The convenience store has two kinds of customers. One is people who are there to get gas but also pick up something in the convenience store. The other is people who come specifically for the convenience store.
Space outside not used for cars that are at the gas pumps is usually used for parking for the people who are there for the convenience store.
If they add EV chargers that are separate from the pumps they will probably have to reduce the parking space for convenience store customers. So they are replacing spots currently used by people who are there for a usually short visit to the convenience store with spots for people who are there to charge EVs.
Even if 100% of EV charging customers also use the convenience store it still reduces convenience store volume because they occupy a spot longer than the people who are there just to use the convenience store. Plus there will be people who are there just to charge and will not use the convenience store.
If they add the EV chargers where the gas pumps are, then the EV charging customers are replacing gas buying customers and so again their is a reduction in turnover because EV charging is slower. Because EV charging is slower I'd guess there is a larger chance that an EV charging customer will decide to also use the convenience store than there is that an gas customer will, so that might compensate some for the lower turnover but I'd guess that it would still be a net reduction in convenience store business.