BUZZ-Ophir Energy: Falls after H1 results misses estimates
** Oil producer Ophir Energy (Other OTC: OPGYF - news) down 6.4 pct at 106.0 pence after H1 pretax loss and rev missed estimates
** Co reported H1 pretax loss of $123.3 mln and rev of $86.5 mln
** Stock biggest loser on FTSE-250 midcap index with 25 pct of daily avg volume traded in first hour
** Stock also biggest drag on the FTSE 350 oil & gas index
** Westhouse analyst Mark Henderson said Ophir's strong balance sheet should help co weather current environment, but that co has "yet to deliver a truly transformational transaction that alters the balance of the portfolio"
** Co bought Salamander Energy (Other OTC: SALDF - news) last year, giving it a firmer footing in southeast Asia and a number of producing assets (abhiram.nandakumar.thomsonreuters.com@reuters.net)