Symbol: OGE Yield: 4.39% 31.63 -0.01 Jul. 23, 2008, 4:00 p.m. EST Stock data is delayed 20 minutes 1st Quarter 2008 Conference Call Webcast Printable Webcast Slides OGE Energy Corp. and Electric Transmission America Announce Plan to Build 765 kV Lines in Western Oklahoma Commission approves OG&E ‘Quick Start’ program OG&E makes fans available to area agencies OG&E to Defer Higher Fuel Costs to Ease Impact on Customers OGE Energy Corp. Announces Resignation of CFO Jim Hatfield
	OG&E ELECTRIC SERVICES       OKLAHOMA FUEL COST ADJUSTMENTS FACTORS                                   OKLAHOMA   OKLAHOMA   OKLAHOMA   OKLAHOMA   OKLAHOMA   OKLAHOMA                 S/L 1   S/L 2   S/L 3   S/L 4   S/L 5             Fuel Adj.   Fuel Adj.   Fuel Adj.   Fuel Adj.   Fuel Adj.         All   OSSE   OSSE   OSSE   OSSE   OSSE   Meter Reading Service    Factor   Factor   Factor   Factor   Factor Date   Levels   Dr (Cr)   Dr (Cr)   Dr (Cr)   Dr (Cr)   Dr (Cr) 2008                             01-04 to 02-03        $   (0.001504)    $  (0.001538)   $  (0.001101)    $  (0.000394)    $  0.000585 02-04 to 03-03        $   (0.001705)    $  (0.001739)   $  (0.001302)    $  (0.000595)    $  0.000384 03-04 to 04-01        $   (0.001553)    $  (0.001587)   $  (0.001150)    $  (0.000443)    $  0.000536 04-02 to 04-30        $   (0.001518)    $  (0.001552)   $  (0.001115)    $  (0.000408)    $  0.000571 05-01 to 06-01        $   (0.001506)    $  (0.001540)   $  (0.001103)    $  (0.000396)    $  0.000583 06-02 to 06-30        $   (0.001532)    $  (0.001566)   $  (0.001129)    $  (0.000422)