I was bowling with a buddy on a pair on lanes that are not used for league on Friday. They are a by the desk. While we where bowling, the maintenance guy was running the oil machine, which he does before we bowl league every week. Anyway we finished bowling a couple of practice games. Moved to the freshly oiled lanes we where to bowl on in league, so I thought, and threw a one shadow ball, a seven pin, everything seemed cool, until league started. The lanes were almost bone dry. I wasn't prepared for it. Since the lanes are always oily. I only had my urethane trooper (spare ball) and next up was my Raw Doom. I ended up using my trooper and struggled to a 195 average for the night. Question: Cant'they tell when the oil machine is empty? Do they do that on purpose? Do they remove the oil and not put anymore down? Can they do that? During shadow balls I only threw one shot a seven pin, so I didn't notice.The lanes I practiced on just 20 minutes before where nice. Whats up with that?