We have studied the spectral energy distribution of the quasar LBQS 0102-2713 . The available multiwavelength data in the observers frame are one optical spectrum between 3200 and 7400 à  ( Morris et al . 1991 ) , 7 HST FOS spectra between 1700 and 2300 à  ( York et al . 1990 ) , one GALEX NUV flux density and a K _ { S } magnitude obtained from NED , and 3 public ROSAT PSPC pointed observations in the 0.1 - 2.4 keV energy band . The \alpha _ { ox } values obtained from the HST FOS- , the optical spectrum , and the ROSAT observations are -2.3 and -2.2 , respectively , comparable to BAL quasars ( e.g . Gallagher et al . 2006 ) . The 2500 à  luminosity density is about a factor of 10 higher compared to the mean of the most luminous SDSS quasars ( Richards et al . 2006 , their Fig . 11 ) . The 2 keV \nu L _ { \nu } value is lower by about a factor of 10 compared to the radio loud quasars shown in Fig . 10 of Richards et al . ( 2006 ) . LBQS 0102-2713 exhibits one of the steepest soft X-ray photon indices obtained so far . For a simple power law fit with leaving the N _ { H } free in the fit we obtain a photon index of \Gamma = 6.0 \pm 1.3 . Fixing the N _ { H } value to the Galactic value the photon index still remains steep with a value of about 3.5 . We argue that LBQS 0102-2713 is similar to BAL quasars with respect to their UV brightness and 2 keV X-ray weakness . However , the absorption by neutral matter is significantly lower compared to BAL quasars . The X-ray weakness is most probably not due intrinsically X-ray weakness based on the UV line strenghts which are comparable to the line strength values reported in quasar composites ( e.g . Brotherthon et al . 2001 , Vanden Berk et al . 2001 , or Zheng et al . 1997 ) . If the X-ray weakness will be confirmed in future observations , LBQS 0102-2713 might be indicative for a new class of quasars with an unusual combination in their UV- , X-ray , and N _ { H } properties .