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Supplemental Information PGA Summaries: Illinois Navigator PGA Summaries: 2008 | 2007 | 2006 Purchased Gas Adjustments During 2007 (per therm) Revision No. Effective Date Rider No. 5 Gas Charge and Refund Adjustments 138th Rev. Sh. No. 14   1/01/07  .8898 139th Rev. Sh. No. 14    2/01/07  .4157 140th Rev. Sh. No. 14    3/01/07 1.0797 141st Rev. Sh. No. 14    4/01/07  .8664 142nd Rev. Sh. No. 14    5/01/07  .9177 143rd Rev. Sh. No. 14    6/01/07  .8775 144th Rev. Sh. No. 14    7/01/07  .7886 145th Rev. Sh. No. 14    8/01/07  .6909 146th Rev. Sh. No. 14    9/01/07  .6415 147th Rev. Sh. No. 14  10/01/07  .6823 148th Rev. Sh. No. 14  11/01/07  .7354 149th Rev. Sh. No. 14  12/01/07  .7042 Navigator PGA Summaries: 2008 | 2007 | 2006 For Your Home | For Your Business | Safety | Rates | Energy Efficiency | Economic Development | Environmental Efforts About Us | Careers | News Room | Storm Center | Wind Energy | Contact | Streetlight Repair Request | System Outage Watch | Energy Choice | For Contractors | For Landlords | ©2008 MidAmerican Energy Holdings Company. All rights reserved.