Patterson
reported
net
income
of
$87.6
million
for
the
three
months
that
ended
in
December
on
revenue
of
$725
million.
That
compared
to
income
of
$53.9
million
on
revenue
of
$506
million
a
year
earlier.
For
the
year,
Patterson
earned
$322
million,
a
175%
jump
from
the
$117
million
earned
in
2010.
Revenues
for
the
year
came
to
$2.6
billion,
compared
to
$1.5
billion
for
2010,
Patterson
said.
The
bottom
line
was
helped
by
a
sequential
bump
in
per-day
operating
margins
for
the
fourth
quarter,
from
$8460
in
the
third
quarter
to
$9280
in…