| | |
| Issued under the Indenture dated as of September 24, 1998 |
| 6.875% Debentures due 2028 |
| Issued under the Indenture dated as of December 28, 2001 |
6.00% Notes due 2035 |
| Issued under the Indenture dated as of September 25, 2006 |
| 6.65% Senior Notes due 2036 |
| 6.85% Senior Notes due 2037 |
| 6.125% Senior Notes due 2041 |
| 6.200% Senior Notes due 2043 |
| Issued under the Indenture dated as of April 19, 2007 |
| 6.40% Senior Notes due 2037 |
| Issued under the Indenture dated as of August 11, 2010 |
| 3.25% Senior Notes due 2030 |
| 4.20% Senior Notes due 2042 |
| 5.15% Senior Notes due 2043 |
| 4.20% Senior Notes due 2045 |
| 4.25% Senior Notes due 2046 |
| 4.20% Senior Notes due 2047 |
| 4.85% Senior Notes due 2049 |
| 3.95% Senior Notes due 2050 |
| Issued under the Indenture dated as of January 26, 2012 |
| 4.000% Notes due 2027 |
| 4.25% Notes due 2027 |
| 4.55% Notes due 2028 |
| 5.650% Notes due 2028 |
| 4.35% Notes due 2029 |
| 3.40% Notes due 2029 |
| 4.40% Notes due 2029 |
| 3.100% Notes due 2030 |
| 5.800% Notes due 2030 |
| 6.350% Notes due 2031 |
| 4.75% Notes due 2031 |
| 6.10% Notes due 2032 |
| 4.95% Notes due 2032 |
| 6.050% Notes due 2033 |
| 5.05% Notes due 2034 |
| 5.40% Notes due 2035 |
| 4.950% Notes due 2047 |
| 5.20% Notes due 2048 |
| 4.45% Notes due 2049 |
| 4.500% Notes due 2050 |
| 7.150% Notes due 2051 |
| 6.625% Notes due 2053 |
| 5.70% Notes due 2054 |
| 6.25% Notes due 2055 |
| 5.85% Notes due 2064 |