@General Ike :
The EFurnace is 4EU/t ,128 Ticks per item.
The multismelter is a bit more complex: 512 ticks per process at LV, halved each power Tier.
Item count is depending on coil tier: 8, 16, 32, 64, 128, 128, 128 items.
EU/t is also depending on coil tier: 4, 8, 16, 32, 64, 32, 16 EU/t for LV, 4x for each higher power Tier. 32/64EU/t at LV means you need 2+ amp.
So multismelter is more efficent, but only if you feed it enough items at once. If it starts for a single item, the efficency is worse.
Yes, universal macerator is simple overclocking. 32EU/t should be right, 1/4 the time compared to LV macerator.
For oil drilling, best read here:
https://ftb.gamepedia.com/Oil_Drilling_Rig
The main missunderstanding you seem to have is that Oil produced by the drilling rig is not constant. If you only get 80L per cycle it is not worth it for power. There is another oil field every 6 chunks and there you might be lucky and get 600+L per cycle. With only the single block distillery, light oil should be the best to find. Later with full size oil processing (2+ destillation towers + oil cracker) heavy oil is extremely powerfull.
The industrial diamond in the normal compressor is correct. It should only get disabled if real hard GT is wanted.
@Captain_Oats :
Switch the energy detector with the screwdriver to detect the full storage including batteries.