** SBM Offshore spikes higher as much as 5.1 pct on volume with traders citing reports saying Petrobras did not find evidence of bribery in ongoing case
** Shares off highs of the day, last up 3.8 pct.
** Investigation related to graft scandal that has hit shares of Brazil's state-run oil producer
** Traded volumes at 1.3 times five-day average at 1230GMT, among the highest on Stoxx 600
** SBM Offshore settled a long-running bribery investigation with Dutch authorities earlier in the month for $240 mln (193 million euros) and said U.S. authorities had dropped their probe
** Latest statement on case from SBM: bit.ly/1rqLfay