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Various

"Scientific American Supplement, No. 430, March 29, 1884"

Drilling has been found difficult, as a great portion of the rock
is broken shale lying obliquely. The tools slip to one side very easily,
and a number of "crooked holes" have resulted. One driller lost his
tools altogether in a well, and finished it with new ones. The cost of
putting down a well is from $5,000 to $7,000, depending upon depth, etc.
Most of the wells are from 1,200 to 1,500 feet, but some have yielded at
a much less depth. One well of 270 feet depth produced 40 barrels per
day for about three years, has been deepened, and is now yielding even
more. Another one of 800 feet is said to have produced 200,000 barrels
in the last five or six years. Drilling has been very successful in
striking oil in paying quantities wherever there were indications of its
presence.
The Pacific Oil Company now has 27 wells producing or drilling, and
during the last two years has been rapidly widening the scope of its
operations. It has now from 30 to 40 miles of pipe lines, and is
preparing to lay 20 miles more, to connect its land with ocean shipping
at Ventura.


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