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|   | MIDAMERICAN ENERGY      COMPANY |                                          |
|--------|---------------------------------|-----------------------------------------------|
|   |                            |                                          |   |
|   | By:                             | /s/  Paul      J. Leighton          |   |
|   |                            | Paul      J.Leighton                     |   |
|   |                            | Vice      President & Corporate Secretary |   |
|   |                            |                                          |   |
|   | By:                             |  /s/       Brian K. Hankel          |   |
|   |                            | Brian      K. Hankel                          |   |
|   |                            | Vice      President & Treasurer           |   |

----

|   | JPMORGAN CHASE BANK,      N.A., individually, as LC Issuer and as Administrative    Agent |                                         |
|--------|-------------------------------------------------------------------------------------------|----------------------------------------------|
|   |                                                                                      |                                         |   |
|   | By:                                                                                       | /s/       Juan J. Javellana             |   |
|   |                                                                                      | Name:       Juan J. Javellana           |   |
|   |                                                                                      | Title:         Vice President |   |

----

|   | UNION BANK, N.A. (formerly      known as Union Bank of California, N.A.) |                                               |
|--------|--------------------------------------------------------------------------|----------------------------------------------------|
|   |                                                                     |                                               |   |
|   | By:                                                                      | /s/       Dennis G. Blank                     |   |
|   |                                                                     | Name:       Dennis G. Blank                   |   |
|   |                                                                     | Title:         Vice President  |   |
|   |                                                                     |                                               |   |

----

|   | THE ROYAL BANK OF SCOTLAND      plc |                                                      |
|--------|-------------------------------------|-----------------------------------------------------------|
|   |                                |                                                      |   |
|   | By:                                 | /s/       Belinda Tucker                             |   |
|   |                                | Name:       Belinda Tucker                      |   |
|   |                                | Title:         Senior Vice President  |   |
|   |                                |                                                      |   |

----

|   | ABN AMRO BANK    N.V. |                                               |
|--------|-----------------------|----------------------------------------------------|
|   |                  |                                               |   |
|   | By:                   | /s/       Scott Donaldson                     |   |
|   |                  | Name:       Scott Donaldson              |   |
|   |                  | Title:         Director        |   |
|   |                  |                                               |   |
|   | By:              | /s/  Todd      Vaubel                    |   |
|   |                  | Name:       Todd Vaubel                  |   |
|   |                  | Title:         Vice President  |   |

----

|   | BNP PARIBAS |                                 |
|--------|-------------|--------------------------------------|
|   |        |                                 |   |
|   | By:         |                                 |   |
|   |        | Name:                      |   |
|   |        | Title:      |   |
|   |        |                                 |   |

----

|   | BARCLAYS BANK    PLC |                                                         |
|--------|----------------------|--------------------------------------------------------------|
|   |                 |                                                         |   |
|   | By:                  | /s/       Alicia Borys                                  |   |
|   |                 | Name:       Alicia Borys                           |   |
|   |                 | Title:         Assistant Vice President  |   |
|   |                 |                                                         |   |

----

|   | THE BANK OF NEW YORK      MELLON |                                               |
|--------|----------------------------------|----------------------------------------------------|
|   |                             |                                               |   |
|   | By:                              | /s/        John N. Watt                  |   |
|   |                             | Name:       John N. Watt            |   |
|   |                             | Title:         Vice President  |   |
|   |                             |                                               |   |

----

|   | FIFTH THIRD      BANK |                                                     |
|--------|-----------------------|----------------------------------------------------------|
|   |                  |                                                     |   |
|   | By:                   | /s/       Ashley Colmenero                          |   |
|   |                  | Name:       Ashley Colmenero                   |   |
|   |                  | Title:         Relationship Manager  |   |
|   |                  |                                                     |   |

----

|   | LEHMAN BROTHERS BANK,      FSB |                           |
|--------|--------------------------------|--------------------------------|
|   |                           |                           |   |
|   | By:                            |                           |   |
|   |                           | Name:                          |   |
|   |                           | Title:     |   |
|   |                           |                           |   |

----

|   | MIZUHO CORPORATE BANK,      LTD. |         |
|--------|----------------------------------|--------------|
|   |                             |         |   |
|   | By:                              |         |   |
|   |                             | Name:   |   |
|   |                             | Title:  |   |
|   |                             |         |   |

----

|   | NATIONAL CITY    BANK |                                               |
|--------|-----------------------|----------------------------------------------------|
|   |                  |                                               |   |
|   | By:                   | /s/        Michael Leong                 |   |
|   |                  | Name:       Michael Leong                |   |
|   |                  | Title:         Vice President  |   |
|   |                  |                                               |   |

----

|   | U.S. BANK NATIONAL      ASSOCIATION |                                               |
|--------|-------------------------------------|----------------------------------------------------|
|   |                                |                                               |   |
|   | By:                                 | /s/        Karen Nelsen                  |   |
|   |                                | Name:       Karen Nelsen                 |   |
|   |                                | Title:         Vice President  |   |
|   |                                |                                               |   |

----

|   | WACHOVIA BANK, NATIONAL      ASSOCIATION |                                                  |
|--------|------------------------------------------|-------------------------------------------------------|
|   |                                     |                                                  |   |
|   | By:                                      | /s/       Frederick W. Price                     |   |
|   |                                     | Name:       Frederick W. Price              |   |
|   |                                     | Title:         Managing Director  |   |
|   |                                     |                                                  |   |

----

|   | WELLS FARGO BANK,      N.A. |                                               |
|--------|-----------------------------|----------------------------------------------------|
|   |                        |                                               |   |
|   | By:                         | /s/       Lisa Larpenteur                     |   |
|   |                        | Name:       Lisa Larpenteur              |   |
|   |                        | Title:         Vice President  |   |
|   |                        |                                               |   |

----

|   | WILLIAM STREET COMMITMENT      CORPORATION                         |                                                                   |
|--------|--------------------------------------------------------------------|------------------------------------------------------------------------|
|   | (Recourse only to assets of William Street Commitment Corporation) |                                                                   |
|   |                                                               |                                                                   |   |
|   | By:                                                                | /s/        Mark Walton                                       |   |
|   |                                                               | Name:       Mark Walton                                      |   |
|   |                                                               | Title:    Assistant Vice      President  |   |
|   |                                                               |                                                                   |   |

----

|   | FIRST NATIONAL BANK OF      OMAHA |         |
|--------|-----------------------------------|--------------|
|   |                              |         |   |
|   | By:                               |         |   |
|   |                              | Name:   |   |
|   |                              | Title:  |   |
|   |                              |         |   |

----

|   | UBS LOAN FINANCE      LLC |                                                         |
|--------|---------------------------|--------------------------------------------------------------|
|   |                      |                                                         |   |
|   | By:                       | /s/  Marie      Haddad                             |   |
|   |                      | Name:       Marie Haddad                           |   |
|   |                      | Title:         Associate Director        |   |
|   |                      |                                                         |   |
|   | By:                  | /s/  Irja      R. Otsa                        |   |
|   |                      | Name:        Irja R. Otsa                          |   |
|   |                      | Title:          Associate Director  |   |

----

|   | UBS AG STAMFORD      BRANCH |                                                        |
|--------|-----------------------------|-------------------------------------------------------------|
|   |                        |                                                        |   |
|   | By:                         | /s/        Marie Haddad                           |   |
|   |                        | Name:       Marie Haddad                          |   |
|   |                        | Title:         Associate Director  |   |
|   |                        |                                                        |   |
|   | By:                    | /s/  Irja R.      Otsa                            |   |
|   |                        | Name:       Irja R. Otsa                          |   |
|   |                        | Title:         Associate Director       |   |

----

|   | SUMITOMO MITSUI BANKING      CORPORATION |                                                |
|--------|------------------------------------------|-----------------------------------------------------|
|   |                                     |                                                |   |
|   | By:                                      | /s/       Masakazu Hasegawa                    |   |
|   |                                     | Name:       Masakazu Hasegawa             |   |
|   |                                     | Title:         General Manager  |   |
|   |                                     |                                                |   |

----

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