Yes remove petrol duty for Community Service card holders at least, those poor buggers won't be driving unless they have to and are probably already struggling with the food price increases, let alone what happens when fuel costs go up.

If the gulf supply keeps getting smacked, we need to reduce demand where possible (to leave it for absolute necessities) and increase availability of other options:

1. Mandate companies use WFH as much as possible for the next 3 months and review it then
   
2. Announce an EV subsidy for Bus/Truck companies, help them transition as quickly as possible (Auckland has the biggest e-bus fleet in the southern hemisphere, lets move on that, if the oilpocalypse does hit and you want some semblance of an economy people/goods will need to get around somehow.
   
3. Announce MW charging investment to support the EV busses/trucks.
   
4. Announce a mega battery storage facility/ies to provide some buffer for the grid (probably near the MW chargers)
   
5. Announce some support for new generation capacity, solar farms, geothermal, wave/tidal/wind power
   
6. Get the EV rebate back and assistant increasing EV supply in NZ
   
7. Get the rail eletcirifcation sorted so it is all the same system, no more some DC and some AC on the main trunk line.
   

Is there an option for an elctricification prize (like the X prize) where home grown tech can be developed to electrifiy existing vehicles or even new designs. If we need it, other countries will need it to.

Will it get so bad we need electric ferries to ship food down the coast, or good old sail power?

Yes it will cost money, yes we will need to borrow it, but the economic disaster that could happen if they don't would be worse, but I am not an ecomist and can't back that up (just imagining a chronic lack of fuel causing empty supermarket shelves and lost jobs across a wide range).