1 EXHIBIT 4.1 KERR-McGEE CORPORATION TO CITIBANK, N.A., Trustee INDENTURE DATED AS OF AUGUST 1, 2001 KERR-McGEE CORPORATION Reconciliation and tie between Trust Indenture Act of 1939 and Indenture, dated as of August 1, 2001Kerr McGee Corp /De • October 2nd, 2001 • Crude petroleum & natural gas • New York
1 EXHIBIT 1.1 KERR-MCGEE CORPORATION $ 325,000,000 5 7/8% NOTES DUE SEPTEMBER 15, 2006 $ 675,000,000 6 7/8% NOTES DUE SEPTEMBER 15, 2011 $ 500,000,000 7 7/8% NOTES DUE SEPTEMBER 15, 2031 UNDERWRITING AGREEMENTKerr McGee Corp /De • October 2nd, 2001 • Crude petroleum & natural gas • New York
