Hi T,
After checking the GIS Map of the description you gave T160 R94, I see it's a very busy T/R. I'm somewhat surprised that you aren't being pursued by many landsmen, rather than just one.
I did a quick research of the leasing for that 160/94 on NDRIN, for the past 12 months and found approximately 7 other companies besides Continental that have leased. Continental does have the majority of all leases by far.
Without your exact section(s) posted, I couldn't research your immediate minerals, for active Lessees.
I will list the other 7 companies, the first listed was the 2nd most leases for the T/R:
Northland Royalty Corp--Bsmk, ND
Utopia Oil & Gas-- Austin, TX
Cody Oil & Gas -- Bsmk, ND
Petro Hunt--Dallas, TX
KOB Oil-- Midland, TX
XTO Energy--Sidney, MT
Wyondakota--Gillette, WY
Hope this list helps you to research for a landsmen from those companies. I haven't seen some of these companies listed before, but Burke County is a ways from the usual counties I watch.
As to how far to push a landsmen, after seeing the activity level in your T/R; I would say you could push pretty hard. As to being on the fringe of the Bakken, thats just them using leverage to one up you. It could be true, but I am guessing your acres are of equal importance to anyone within that T/R, and don't let them kid you.
The royalty of 1/5 is good for most any location, but if I were you, I'd continue to research what others in the vicinity have gotten. That figure seems to change readily. And the uninformed MO settles for much less.
If you can even find one other company to show interest, the fun begins; and you can get more leverage as to the clauses and terms. Of the few current leases I opened from 160/94, most seemed to be 3yr leases and mostly 3/16 or 1/5.
Keep going on research, it becomes addictive and fun.
Susan