history: I work in the oilfield a a field geologist.  My work requires me to be away from my family for days, and sometimes weeks at a time.  I feel very isolated and miss home.
current: I often am gone from my home and family for days or even weeks at a time.  I work on remote locations, looking for oil and gas.
next: Sounds like an interesting job.  I'm sure it's taxing on the family though.