BUZZ-Gulf Marine Services: best day ever on solid H1
** Vessels operator Gulf Marine Services (LSE: GMS.L - news) up as much as 14.4 pct after reports 12 pct jump in H1 revenue
** Adj net profit up 20 pct
** Self-elevating support vessels utilisation of 89 pct in H1 2016
** Sees 2016 EBITDA between $100-110 mln
** Stock strongest on FTSE All Share Oil Equipment & Service Index