Context : Oe stars possibly form an extension to higher temperatures of the Be phenomenon , but it is still unclear whether these stars have disks .

Aims : X-ray spectra could provide hints for interactions of the star with a putative surrounding disk .

Methods : We obtained XMM-Newton observations of two Oe stars , HD 45314 and HD 60848 .
Spectra and light curves were extracted and analysed .
Optical spectra were also obtained to support the X-ray observations .

Results : We find that both stars display very different X-ray properties .
Whilst HD 60848 has an X-ray spectrum and emission level typical for its spectral type , HD 45314 displays a very hard X-ray emission , dominated by a thermal plasma with kT \sim 21 keV .
Furthermore , HD 45314 displays count rate variations by a factor 2 on timescales of \sim 10 ^ { 3 } s and a high \log { \frac { L _ { X } } { L _ { bol } } } = -6.10 \pm 0.03 .

Conclusions : The X-ray properties of HD 45314 indicate that this star is a new member of the class of \gamma Cas analogs , the first one among the original category of Oe stars .