Here is where I have been lately, in an isolated part of the frozen north, surveying oil leases. Here is a "horizontal rig" They drill down 600 meters, then the bit turns, and runs horizontal for up to 1 1/2 miles through an oil deposit. This set up also injects steam underground to soften the tar like deposits, to make retrieval easier.
The cable coming off the derrick is a zipline for emergency egress of the guy (derrick hand) in the little shack, in case of emergency. You can just make out the "T" bar outside the door. He would sit on this and release the break, and "get out of dodge!"
What a way to make a living!