Montana oil and mining journal. [volume] (Great Falls, Mont.) 1931-1953, 1936-05-09

since all sands thicIxen to the west.
Proof of this fact is found in a number
of wells drilled on the west flank of the
Arch, where sands are invariably thick
or. Also in the JacksOn-Gray-Dunb test
now drilling, the Eagle sandstone was
found TO be 30 feet thick, whereas it is
originally about 80 feet thick in Cut
Bank area.
NAVE have not yet talked with a
~ geolOgist who can interpret for
us the structural revelation of
the Dunbar test. 1t is checking about
800 feet higher than expected. Possibly
George Downs, geOlOgist woh spotted this
well, was very conservative in his esti-
mate of structural elevation. He said
that the Cut Bank sand would be found
at about $50 feet above sea level. 1t
now appears from the elevation of the
top of the Colorado formation that the
Cut Bank sand viii be found that the
SIX HUNDRED AND FIFTY feet above
sea IeveI-Vahich approaches the ele-
walton of producing wells along Cut
Bank creek, south of Cut Bank. This
MAY signify reversal between Dunbar
and Cut Bank, which in turn means
virtual certainty Of production in Dunbar.
Should this wei fail TO find oil in the
Cut Bank sand, then the discoveries at
the Del Bonita well lead to belief that
deeper drilling on Dunbar fold will reveal
oil in the Ellis and possibly in the Madt-
SON lime. In all probabilities a well will
now be carreied to the lime ON Dunbar
fold, irrespective of production In either
the Sunburst or Cut Bank sands
To the royalty investor Dunbar means
little. There are three good title roy
alties of which we know ON the fold.
We have bought up all we can get of two
Of these. As result, most of the roy
alties ON Dunbar belong to members of
this Organization. If IL is q great oil
field, then the fortunes from royalties
are coming to members of this organiZa-
ton.
To the operator, Dunbar means little.
No leases are avaiIabIe.AH the leases on
the fold as mapped have been taken up
by the JacksOn-GrAy company, excepting
properties owned outright by Sinclair
Consolidated Oil company. This is the
only property held I'm the State of Mon
tana, of which we know, by Harry Sim
clair or any of his subsidiaries. The Sim
clair organization is said TO have cone
tributed sbotom hole money TO this
operation, i'm lieu of leasing any part of
It's holdings, and is greatly interested In
Ehe outcome OF this well now drilling.
Development of production on Dunbar
might induce Sinclair TO enter Montana.
Everything that Sinclair does he does I'm
/ big way. He would doubtless be the
principal bidder for full control of Dun
var, should production justify any move
It all. That might or might not bar
mailer Independents from getting leases,
'ut might expand refinery capacity and
TOntana markets.
We are this week issuing a new pub
lcatiOn to members, with diagrams, maps
ND drawings illustrating the situation on
dunbar which situation may prove even
lOre important than the development of z
IL at Baker. II Dunbar fold produces,
hen there is every reason to believe that
he other folds TO the west win produce.
hey win afford deeper and deeper drill
ng they go westward, although the
eepest likely fold is probably NO deeper
nan 6,7OO feet, which is the depth Of
ne Baker discovery well.
Amy who wishes a more graphic des-
-iptiOn OF the Dunbar situation may Sc
IRE a copy OF this publication by send
e the attached coupon. 3