BUZZ-Enquest: Concerns on cashflow mount
** North Sea-focused oil producer Enquest (LSE: ENQ.L - news) 's shares down 7.5 pct at 30.75 pence after co reported H1 results
** Co reported 12 pct fall in rev and 34 pct decline in profit before tax and net costs for H1
** Stock second biggest loser and busiest on the FTSE Small cap index, with nearly half its daily avg volume traded in the first 15 minutes
** Stock biggest drag on FTSE oil and gas index
** Analysts say H1 operating cashflows lower than expected at $83 mln, while capex higher than forecast at $386 mln
** Co kept FY production and capex guidance
** Peer Ithaca Energy also down about 2 pct (abhiram.nandakumar.thomsonreuters.com@reuters.net)