Yes, just for reference, I am green and my teeth are yellow, from many years of smoking.
Going down the list...
Supply 40000 / 2000. Means 40,000 supply points of supply are on hand. 2000 tons will be added every day from automatic supply production. Troops at the base will consume some and you may load some on ships. So next turn you will likely have less than 42,000 on hand.
Supplies required 9970. Means that over the course of a month, it is estimated that the base will consume 9970 points of supply. So maybe 330 odd points per day. Subtracted from the automatic generation of 2000 per day, that means that supply will build up here unless it is shipped out.
If this base had a contiguous path of land hexes (or a suitably short path of sea hexes) it would attempt to maintain three times 9970 points of supply (three months of estimated requirements). If supply were present to fulfil this requirement, available supply at the base would hover around 29,000 odd. The base would ship excess elsewhere or import a shortage from elsewhere.
Fuel 20000 / 1000. Means 20,000 fuel points are on hand. 1000 points will be added every day from automatic generation. There being no industry at the base to use fuel, the result would be 21,000 points on hand tomorrow (less fuel used to refuel ships or loaded into tankers and the like).
Fuel requested 5000. The base will attempt to maintain 15000 fuel (I think this is multiplied by 3 like supply, but am not certain). In the absence of an overland supply route it is largely irrelevant for Dutch Harbor anyway. No fuel will be transferred overland from nearby bases or to nearby bases.
Oil Storage: 0 No oil on site. With no oil wells to produce it and no refineries to demand it, oil is irrelevant to the base.
Resource Storage: 0. No resources on site. With no mines to produce it and no industry to demand it, resources are irrelevant to the base.
Support: Total support (including motorized support) present in ground units at the base.
Support required: Total support requirements for ground units at the base
Aviation support: Total aviation support present at the base. 30 points of which are aviation tenders which can support float planes.
Aviation support required: 140 engines worth of planes with modifiers for how many are on training missions or stood down iirc.
Engineers: 89 engineers to repair airfields or ports or build fortifications
Engineer Vehicle: 16 bulldozers which count as the equivalent of 5 engineers each
Artillery: total number of tubes, irrespective of caliber.
Flak: total number of tubes, irrespective of caliber
Many thanks for taking the trouble to explain all this so clearly, alimentary. Very much appreciated.