  We review the energy contents formulae of Kerr-Newman black-holes, where
gravitomagnetic energy term comes to play(Berman, 2006; 2006a; 2004). Then, we
obtain the angular momenta formulae, which include the gravitomagnetic effect.
Three theorems can be enunciated: (1) No black-hole has its energy confined to
its interior; (2) Rotating black-holes do not have confined angular momenta;
(3) The energy density of a black-hole is not confined to its interior. The
difference between our calculation and previous ones by Virbhadra(1990, 1990a,
1990b), and Aguirregabiria et al.(1996), lies in the fact that we include a
term responsible for the self-gravitational energy, while the cited authors
discarded such effect, which appears in the static black hole energy
calculation.
