ANNUAL SIMON STATION MAINTENANCE AND DOT'S

MountainWest Pipeline, LLC (MWP) would like to remind its customers of the following:

MWP will be performing annual ESD testing and unit maintenance at the Simon Compressor Station GD April 14 and GD April 27 through GD May 1. To facilitate the work, Simon Compressor Station will be offline. The Nightingale ML22 Segment capacity will be reduced from 206,650 Dth/d to 175,000 Dth/d, JL 65 will be reduced from 25,500 Dth/d to 21,700 Dth/d, ML 26 will be reduced from 7,750 Dth/d to 6,600 Dth/d, ML 23 will be reduced from 30,250 Dth/d to 25,800 Dth/d, MAP 967 reduced from 45,850 to 38,490 Dth/d and expect increased pressures for Vermillion Plant MAP 293. If nominations remain at current levels, we do not anticipate any required reductions.

If you have any questions, please contact your MWP Marketing or Contract Services Representative or Scheduling on the Customer Service Hotline at 801-584-6034.