The President can do a lot of macro things that affect oil supply, like exercising some control over leases in public land, choosing to regulate or deregulate fracking, or invading a foreign country to obtain more oil.
In a more micro scale the President has fairly direct control over the Strategic Petroleum Reserve, and can decide when to release and when to replenish.
I thought the President wasnt able to do anything about gas prices?
The President can do a lot of macro things that affect oil supply, like exercising some control over leases in public land, choosing to regulate or deregulate fracking, or invading a foreign country to obtain more oil.
In a more micro scale the President has fairly direct control over the Strategic Petroleum Reserve, and can decide when to release and when to replenish.