In some embodiments, {TAIL ~ the systems}, methods, and {HEAD ~ heaters} are used for treating a subsurface formation 
In some embodiments , { TAIL ~ the systems } , methods , and { HEAD ~ heaters } are used for treating a subsurface formation
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH