| Electric Operations (year-end
2007) - Total Retail Customers: 719,635 |
| Iowa: |
630,938 |
 |
| Illinois: |
84,750 |
 |
| South Dakota: |
3,947 |
 |
| Residential: |
622,160 |
 |
| Small General Service: |
82,400 |
 |
| Large General Service: |
1,415 |
 |
| Other Retail: |
13,660 |
 |
| Avg. Price Per Kilowatt-hour (Residential): |
$0.0847 |
 |
| Avg. Price Per Kilowatt-hour (Retail): |
$0.0597 |
 |
| Avg. Price Per Kilowatt-hour (Industrial): |
$0.0401 |
 |
| Avg. Annual Revenue Per Customer (Residential): |
$842 |
 |
| Avg. Annual Revenue Per Customer (Retail): |
$1,750 |
 |
| Accredited Net Generating Capacity in MW (Owned): |
5,150 |
 |
| Accredited Net Generating Capacity in MW (Purchased): |
154 |
 |
| Total Accredited Net Generating Capacity in MW
(Owned and Purchased): |
5,304 |
 |
| Record Summer Peak Load in MW –
August 13, 2007: |
4,240 |
 |
| Natural Gas Operations (year-end
2007) - Total Retail Customers: 700,829 |
| Iowa: |
548,336 |
 |
| Illinois: |
65,741 |
 |
| Nebraska: |
4,426 |
 |
| South Dakota: |
82,326 |
 |
| Residential: |
635,702 |
 |
| Small and Large General Service: |
65,705 |
 |
| Avg.
Price Per MMBtu (Residential): |
$11.459 |
 |
| Avg.
Price Per MMBtu (Retail): |
$8.329 |
 |
| Avg.
Price Per MMBtu (Industrial): |
$10.060 |
 |
| Avg.
Annual Revenue Per Customer (Residential): |
$910 |
 |
| Avg.
Annual Revenue Per Customer (Retail): |
$1,330 |
 |
| Peak Day Volumes in MMBtu -
Feb. 2, 1996: |
1,143,026 |
 |
MidAmerican Energy Service Territory
 |
 |