In
a
quarterly
report
to
the
Securities
and
Exchange
Commission,
the
Oklahoma
City-based
explorer
said
it
had
received
subpoenas
from
the
antitrust
division
of
the
US
Department
of
Justice's
midwest
field
office,
and
is
expected
to
produce
the
material
before
a
grand
jury.
The
revelations
follow
Reuters
reports
earlier
this
year
which,
citing
internal
emails,
made
a
case
that
Chesapeake
flouted
securities
laws
and
aimed
to
communicate
with
its
competitors
to
tamp
down
bidding
wars
on
hotly
contested
tracts
of
potential
oil
exploration
land
in
Michigan.
"Chesapeake
intends
to
provide
information…