BUZZ-Oil cos routed again after OPEC

** Top fallers on Stoxx 600 dominated by oil andsupport service cos for second day running, in most casesoutstripping Thursday's falls after OPEC maintained productionat 30mln/bpd

** Premier Oil leads fallers, down 12 pct, followedby Ophir and Galp Energia

** Stoxx 600 Oil and Gas sector falls 4.7 pct, atwo-day fall of 8.5 pct, the biggest since March 2009

** SocGen says decision not to cut "unambiguously bearish"

** "We cannot overstate what a dramatic and fundamentalchange this is for the oil market," banks says in a note (RM: alasdair.pal.thomsonreuters.com@reuters.net)