British Columbia Premier John Horgan held off on ratcheting up a trade war with Alberta Wednesday, but experts say both provinces still have a few limited options to raise the stakes.

Alberta Premier Rachel Notley has already deployed some of the weapons in the province’s arsenal to protest B.C.’s proposed restriction on bitumen shipments, when she announced a ban on B.C. wine on Tuesday and an end to talks on increased electricity imports last week.

The limits on B.C. wine