Wyoming tight-sands gas production in the Jonah and Pinedale fields has peaked in performance, according to Bernstein Research analysts’ review of production and fracturing data of more than 2,300 wells from 2003 to 2008.

But not all is so sour for gas production trends in Jonah, where initial production (IP) rates are lower in comparison with aggressive drilling strategies in Pinedale, the analysts add.

Ben Dell, senior E&P analyst, and Noam Lockshin, associate analyst, focused primarily on production and fracturing data from Ultra Petroleum Corp.’s (NYSE: UPL) Pinedale Field and ...