For example, horizontal wells in the Barnett shale of typical length 4000-5000 feet show the bottom 10% of wells make less than 600 Mcfd while the top 10% of wells make more than 3,900 Mcfd.

StatoilHydro drilled and completed the 9,910 m-long horizontal Gulltopp well from the Gullfaks-A platform, in 439 ft of water. HOUSTON, Apr. 14-- StatoilHydro drilled and completed the 9,910 m ...