Pinedale, Jonah gas fields see expanding development

Rapid development progress at giant Pinedale and Jonah gas fields in Southwest Wyoming is evident in the year-end financial and operating figures of Ultra Petroleum Corp., Houston.The two Green River basin fields rank among the top six US gas fields by reserves, said Michael D. Watford, Ultra chairman, president, and chief executive officer.EnCana Corp. and BP PLC have the two largest positions in Jonah, and Ultra is third. Jonah field, with 1,000 wells on 36 sq miles, has an estimated 13.6 tcf in place, of which EnCana estimates slightly more than 60% will be recovered, Watford said.Pinedale, where Ultra has the largest land position, covers 90 sq miles and began to develop 4-5 years aft...

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