不需要地表有油，这个玩意可在任意位置从地底深处直接钻出油来。 it's a Crude oil pump, to pump Crude oil from anywhere, no mater it's oil fields or not.
Counted when a user downloads a mod release for the first time. Before Nov 2021 it counted everytime a user clicked the mods download button.
Counted when a user downloads a mod for the first time. Has no data before Dec 2022
