Let me explain our Oil situation from a simple Botswana's perspective. Right now, we have 45 days worth of fuel in our storage. 15 days in government's, and 30 in the private sector storage facilities . (This is consumption when the economy is functioning at full capacity. (1)

That is why even when oil prices drop internationally to sub-zero or negative prices as it was the case last night , ours doesn't drop because the we are using oil from our reserves which was bought at $53 - 69$ per barrel. We have to use all that 45 days worth of oil first (2)

Once we fully use all the oil we had before oil prices plummeted then we will buy oil at the NEW prices.That is when we shall see a P5/P4p decrease in Petrol prices to reflect the new purchasing price.Right now we are utilizing oil that isn't affected by last night prices. (3)

The crash in oil prices was due to OPEC, a group of oil producing countries supplying more oil than the world http://needs.Supply  is greater than demand and that pushes the price low. Cars are parked, airplanes are grounded due to the virus.The oil industry has two sides (4)

which are the Financial contracts and the Future contracts...the crash in oil prices is simply because oil distributors are dumping future contracts, future contracts are agreements between fuel producers & fuel distributors to buy oil at a specific quantity and price (5/6)

so right now, oil distributors oare not interested in buying that oil because it's becoming very costly to store it due to zero or low demand. But a lot of countries are opening up their economies, and easing lockdowns so they prices will pick up slowly but surely (6/6)