Subject: Can we mine gold and oil from other planets?

   I have wondered if it is at all possible for the human race to exhaust 
it's resources in reality.  If it is, can we mine other planets for these 
resources?  If so, can we extract oil (ie petroleum) from other planets or 
is carbon-based life essential to the production of oil?
   If a planet has never sustained life, is it possible for it to produce 
and exude oil?  If a planet does contain oil, is that a positive indication 
that it had sustained a carbon-based life form at some time in it's past?
   Can gold be mined from other planets within our solar system, or does the 
weight of an element influence where it is located early during the 
formation of our solar system?

Re: Can we mine gold and oil from other planets?