0000950136-08-001497 Sample Contracts

350,000,000 5.30% Senior Notes due 2018 MIDAMERICAN ENERGY COMPANY UNDERWRITING AGREEMENT
Underwriting Agreement • March 25th, 2008 • Midamerican Funding LLC • Electric services • New York
MIDAMERICAN ENERGY COMPANY and THE BANK OF NEW YORK TRUST COMPANY, N.A., as Trustee Third Supplemental Indenture Dated as of March 25, 2008
Third Supplemental Indenture • March 25th, 2008 • Midamerican Funding LLC • Electric services

THIRD SUPPLEMENTAL INDENTURE, dated as of March 25, 2008 (herein called the “Third Supplemental Indenture”), between MIDAMERICAN ENERGY COMPANY, a corporation duly organized and existing under the laws of the State of Iowa (herein called the “Company”), and THE BANK OF NEW YORK TRUST COMPANY, N.A., a New York banking association duly organized and existing under the laws of the United States of America, as Trustee (herein called the “Trustee”), under the Original Indenture referred to below.