BUZZ-Oil and gas companies: Oil prices fall 4 pct

** U.S (Other OTC: UBGXF - news) .-listed shares of oil and gas producers and services providers fall on Wednesday after crude prices drop 4 pct on renewed concerns over growing global oil glut

** Brent crude down 4 pct at $46.87/barrel; U.S. crude hits 6-1/2 year lows falling 4.7 pct to $40.63

** Chevron Corp shares down 3 pct at $80.98, Exxon Mobil Corp down 2 pct at $76.55, ConocoPhillips (NYSE: COP - news) down 4.3 pct at $47.38

** Royal Dutch Shell Plc (Xetra: R6C1.DE - news) down 2 pct at $54.59, BP Plc down 2 pct at $34.64, Statoil ASA (Xetra: 675213 - news) down 4 pct at $15.14

** Oilfield services companies also down: Schlumberger Ltd down 3 pct at $80.60, Halliburton Co down 4.4 pct at $39.23, Baker Hughes Inc down 4.4 pct at $54.14

** Contract drillers fall: Seadrill Ltd down 5.4 pct at $7.37, Nabors Industries Ltd (NYSE: NBR - news) down 5 pct at $10.32, Rowan Co PlC down 4 pct at $16.48, Ensco Plc (NYSE: ESV - news) down 4 pct at $16.13