** Shares in Viridien VIRI.PA rise over 8%, to the top of France's SBF 120 .SBF120 index, after the French oil and gas services group published positive Q1 results
** The group reported quarterly adjusted EBITDA up 35% at 143 million euros ($162.63 million)
** Results were "better than expected", Kevin Roger from Kepler Cheuvreux says
** The analyst also sees a "catch-up effect" after co's share price drop in the past weeks
** Shares are on track for their best day since mid-March
($1 = 0.8793 euros)
(Reporting by Olivier Cherfan)
((olivier.cherfan@thomsonreuters.com))