12.X having trouble with pumpjacks

[Phauxz]

I'm using the 0.12.X download pack, and I'm noticing something weird with my oil production.

I've got pumpjack mk5s with 5 speed module 5s and a speed module 6 (for a +700% production speed) working depleted oil patches. Unless I've done my math wrong somewhere, each of those pumpjacks should be producing 4 oil/second (+700% = 8x base output). But when I have them hooked up to an oil refinery doing basic oil processing with a speed 2 and a speed 3 module, for a total of +100% crafting speed, which should equal 4 oil/second (2.5 crafting time /10 oil per craft), the refineries only run 75% of the time. This happens even if I've got the refinery directly connected to the pumpjack, with no pipes between.

Either the pumpjacks are only producing 3 oil/second, or the refineries are using more than 4 oil/second...

Is there something I'm missing?

[kinnom]

unless a mod changes it, a depleted oil well only outputs 0.1 oil / sec

[Phauxz]

unless a mod changes it, a depleted oil well only outputs 0.1 oil / sec

Bob's mods adds higher tier pumpjacks that pump faster, effectively raising the depleted oil flow. a mk5 pumpjack produces 0.5 oil / sec from a depleted oil well