Montana oil and mining journal. [volume] (Great Falls, Mont.) 1931-1953, 1942-09-05

royalty deeds of record, we ask him to file
them immediately. Even if they are on the
most unlikely wildcat or a seemingly dis
proven piece Of land in an oil field, they
should go of record. If we handled these
royalties, there was some good reason for
buying them, and they have potential value.
In such fields as Kelvin and POndera, we
know that many tracts which were "dis-
proven" before acidizatiOn may now become
the best tracts in the field The recent his
tory of the Wait farm, in Kelvin field, Illus
trates that point. So the worst royalty in
Kelvin field today may become the best roy
atty tomorrow, with the completion of a well
by modern methods.
We normally regard only Kelvin and Pom
dera as spots where acidizatiOn may turn
"disprOven" areas into potential Wait farms
However, we know now that even Cut Bank
field may have lime production whenever
the local 'highs" are tested. This is ade-
quately proven by the oil and gas ON the
Twin Rivers nose" northwest Of Cut Bank
field, where the Reagan well has found oil
If there is lime oil in the Twin Rivers
nose" is there any reason why there should
be no lime oil in the BIackfeet "nOse"-Or
any other of the very distinct structural
folds in Cut Bank gas field?
Wells drilled in the North Cut Bank area
have definitely proven the existence Of oil
in the top of the lime NONE OF THEM
WERE DRILLED INTO THE LIME TO
THE HORIZON WHERE THE REAGAN
WELL FOUND ITS PRODUCTION. Perhaps
there are many more horizons in the Madi-
son lime that will likewise produce, wherever
found on a structural fold, such as the Twin
Rivers nose or the BIackfeet nose or the
Border nOse-and even ON the folds on the
southwest slope of Cut Bank; also between
Cut Bank and Kelvin fields.
The Madison lime is highly petroIiferOus.
If it were not there would be no Turner
Valley oil field
Why an oil tract is disprOven by a dry
hole which stops at the base of the Ellis we
cannot imagine. Nor does a flow of water
In the Madison lime contact mean anything.
Below that water may be the Reagan hor-
zOn carrying oil. Both the contact and the
Reagan horizon might carry water, yet were
drilling to continue to the Turner Valley
horizon, it is possible that a great oil flow
might be found. There is no well history or
logic of which we know that would indicate
otherwise.
In Kelvin field we have seen a well drilled
to the top of the Madison lime only to get
water, so the well is abandoned. On an adj
IaccMb ACaSC al OpcAdtOE Illus tAC sOp Va
the lime dry so he keeps drilling. He
goes to the second and perhaps the third
"break''-as did Lon Crumley-and he finds
oil That happens frequently. The water
horizons in the Madison lime are not uni
form. There is variation on a single lease
as well as variation throughout the field.
It follows that an oil royalty does not lose
its value when well is drilled to the top
Of the lime and there abandoned There
may be three or four oil horizons below that
viii be opened up with modem methods Of
acidizatiOn at some later date and these may
prove 10 times more valuable than contact
production. We know that Turner Valley,
getting its oil from near the base of the
Madison lime, has far greater wells than
Kelvin wells producing from the top Of the
lime Frequently the size Of the wells in
creases with depth. For that reason the
Reagan wen is especially significant. Some
big producers FROM THE LIME may be
expected on the Twin Rivers nose.
YET SURPRISING THE TWIN RIVERS
WE'LL HAD BEEN DRILLED WITH THE
CUT BANK SAND AS ITS OBJECTIVE