Here are the numbers you requested:
Southern Trails Federal Tax ID # 87-0617323
Dunns #09-202-7077 
Please note: this number is for all of Questar Pipeline Company - Southern Trails does not have their own Dunns #.

We appreciate all your help in this matter.  Please call if you have any questions or need any further information.  Thank you.

Jodi Starley
(801) 324-2082