Gases... makes sense. Definately eliminate the headlift on those, it makes no sense for it to be there. A simple flag to toggle if the stuff is liquid or gas to enable the headlift checks should work wonders.
Wonder if you guys will going to be using Steam, makes sense as an energy transfer mechanism. Looking forward to my bazillion-refinery-factory breaking and having to reconstruct all of the "pure caterium, pure copper" etc infrastructure. That'll be fun!
Looking forward to even more oil popping out of the ground. That 4-to-1 oil to circuits recipe is begging for a big refinery complex somewhere...
Update still scheduled for March? Not being demanding, take the valve-time to make sure it's fun and not too buggy.