As a Driller main, I always enjoy the Point Extraction and On-Site Refining.

In Point Extraction, I get to wander around and dig into walls to get the 'Quarks out, and if it's the tall cave, I can just throw them down. It's nice to go around the cave and explore and feel like I'm doing something.

As for On-Site Refining, I get to get the pipes up to the pumpjacks, taking the most direct routes, drilling through walls to make the shortest paths and be ultra efficient. There's just something so satisfying about drilling through meters of solid rock to get right to a pumpjack.