Installing a second pump in your tank is far easier than doubling or tripling your count of mile deep wells to suck oil from tiny crevices in the rock little by little.

It makes good peacetime sense to install storage aboveground, if you're planning on using it strategically.

Actually do agree that there are benefits for above ground storage - but I see these as more on the demand side than the supply side of the equation. It is extremely interesting for countries with an oil deficit to build such storage sites for security of supply reasons, but can't see it for a major exporter. Russia has also shown no tendency towards trying to influence prices downwards. To my mind therefore the ability to hugely increase export rates from a storage site at short notice might be less critical ? (this is a question).

Going the other way - ie. reducing production to manipulate the market - I stand by my view that its easier to simply produce less for a while. :) This is what opec does.

Ever consider that exporting countries building reserves may not be doing it to quickly work the market, but rather are storing above ground supplies in preparation for quick mobilization for their own use?

War would be an obvious reason to have those oil supplies at the ready.  Since WWI and WWII proved that rapid ramp up in industrial ability and the ability to mobilize quickly, even if the target of a first strike, is critical to getting on a winning footing, then I could easily see the Russians or other nations wanting to have an oil supply which can be used rapidly and not be dependent on geology at hand.

Not everything is about market warfare, and I think there are a lot of players getting more nervous about energy than what is let on.

In mutually offensive wars, a cubic kilometer of oil in one place is among the first targets of missile or air attacks.  Which is why I said it makes peacetime sense.
> It is extremely interesting for countries with an oil deficit to build such storage sites for security of supply reasons, but can't see it for a major exporter

  1. Russia oil assets can be thousands of miles from population centers and ports capable of loading tankers. Should Russia experience a technical issue that prevents them from tranporting oil from its fields, the SPR can be called upon for the emergency.

  2. Exporters typically have long term contracts with customers. A distruption could be costly for them

  3. Some fields are located in northern regions. A severe cold snap could force a temporary production shutdown.