  We have conducted the first survey for Oxygen VI $\lambda\lambda 1032,1038$
absorption lines in QSO spectra. We used medium resolution ($R \approx 1300$)
high signal-to-noise ($\approx 20$) Faint Object Spectrograph spectra of 11
QSOs ($0.53\leq$\zem$\leq2.08$) from the Hubble Space Telescope Archive. We use
simulated spectra to determine the significance of the line identifications,
which lie exclusively in the \Lya forest. We found 12 O~VI doublets of which 9
are expected to be real and 6 constitute a uniform sample with both lines
exceeding a rest equivalent width of $W_r =0.21$ \AA. The number of O~VI
doublets per unit redshift at a mean absorption redshift of $z_{ave} = 0.9$ is
$\langle N(z)\rangle = 1.0 \pm0.6$, which is similar to the density of C~IV and
Mg~II absorbers.
