In the current talk, we will first revise the well known wcdm model
for several ranges of the equation of state parameter of the dark
energy sector encoded on the parameter w. We will then present some
phantom dark energy models that fully fit the available observational
data. Those models are harmless from a quantum point of view, in the
sense that the singularities or abrupt events they might induce are
cured at the quantum level. In addition, some of those models can
support  regular blackholes as well as wormholes that do not require
matter with a wrong kinetic term.