1. 1 Williams Current Drilling and Producing Operations n Currently have 25 drilling rigs operating in Garfield and Rio Blanco Counties. 18 in Valley and 7 in Highlands. n Drilling at depths ranging from 5,400 in Grand Valley field in Garfield County to 10,000 in Ryan Gulch in Rio Blanco County. n 2-6 wells per pad on conventional rigs and up to 10 to 22 wells/pad on new HP/SSD rigs, all are directional. n Currently over 2250 wells producing 760 MMCFD (715 MMCFD from the valley and 45 MMCFD from Highlands) which provides energy (heat) to over 2,700,000 homes. NW CO Forum 6/5/08

2. 2 Piceance Drilling and Plant Update n Plan for 2008 is to drill over 500 wells in Garfield and Rio Blanco Counties. Plan for 2009 is identical to 2008. n All ten new H&P Flex 4 rigs are currently operating. Conducting SIMOPS on all HP pads. 4 Nabors High efficiency Super Sundowner Rigs are operating. 60% of rig fleet are these high efficiency rigs. n Expanding new Parachute Creek Plant III facility to over 1 BCF processing capacity which should be complete in during the summer of 2008. n Williams Midstream is looking to construct the Willow Creek Cryogenic Plant by 2009 in Rio Blanco County. NW CO Forum 6/5/08

3. 3 25 Rigs Operating in the Piceance Basin Williams position Williams position Grand Valley Field Parachute Field Rulison Field 20 miles 24th Year of Development 115,000 Net Acres The largest natural gas producer in Piceance Basin 760 MMcfd Gross Operated Production Operate 2250 wells Operate 250+ miles of gathering and 4 gas plants Access to 5 major interstate/intrastate pipelines Currently 25 drilling rigs operating 24th Year of Development 115,000 Net Acres The largest natural gas producer in Piceance Basin 760 MMcfd Gross Operated Production Operate 2250 wells Operate 250+ miles of gathering and 4 gas plants Access to 5 major interstate/intrastate pipelines Currently 25 drilling rigs operating A A A A A AAAAAA Drilling Rigs (blue is new HP & Green is Nabors SD new rigs) A Allen Point A Ryan Gulch/ A A A A Red Point A A A A A A A A Exploration & Production A A A A/ A A Trail Ridge

4. 4 Community n Williams employees participated in a VOC (Volunteers for Outdoor Colorado) project this past April at Cameo to remove tamarisk along the river. n Williams employees helped build a fence around playground equipment for Kids Promise Daycare in Parachute during Memorial day weekend. n Williams employees are helping raise funds in Parachute by holding garage sales for Relay for Life to be held in later June. n Williams Donna Gray will be co-chairing Garfield Countys United Way campaign.