Mikhail
Fridman,
also
a
co-owner
of
the
Russian
joint
venture
with
Britain’s
BP
as
part
of
the
AAR
consortium,
quit
as
chief
executive
on
Monday,
deepening
a
leadership
crisis
that
has
deprived
the
company
of
a
functioning
board,
Reuters
reported.
Fridman
said
told
the
Kommersant
business
daily
in
an
interview
that
TNK-BP's
current
shareholder
structure
"no
longer
serves
the
interests
of
each
party",
adding
that
only
one
–
either
BP
or
AAR
–
should
control
the
company,
Russia's
third
largest
crude
producer.
"There
are
a
lot
of
different
options.
For
example,
BP
becomes…