Ultra Petroleum Expands Marcellus Leases to 486,000 Acres and 110 Active Wells in 2010 Bradford County | Centre County | Clinton County | Energy Companies | Lycoming County | Pennsylvania | Potter County | Tioga County (PA) | Ultra Petroleum February 16, 2010February 26, 2010 To view this content, log into your member account. (Not a member? Join Today!) Username or Email Address Password Remember Me Lost your password?
