I inherited mineral rights to a farm in the Williston oil basin in
Canada.  I'm not sure just how valuable this is or how to pursue my interests.
 I would appreciate anyone with experience in this area to explain the
basics of how to proceed and to provide a plan of action.

Okay, as a granddaughter of a mineral junkie, and with a little bit of
research I came up with this. The Williston Oil Basin is a sedimentary
basin that runs along the edge of the Rocky Mountains in North Dakota,
Montana and southern Saskatchewan and is known to contain light to
medium crude oil and natural gas. A fair portion of it was just leased
to "Lions Petroleum" to do more exploration. Link to the article:
http://money.canoe.ca/News/Other/2006/06/29/1659505-cp.html
What my suggestion would be is to contact either this company, or
others that are doing exploration in this area and offer your stake
for purchase or lease. I cannot estimate a value for this because very
few leases are made public, but I would believe contacting a few
petroleum companies would be sincerely worth your time.