X0202 3 2004-12-15 0 0001172139 BILL BARRETT CORP BBG 0001106607 JP MORGAN PARTNERS BHCA LP C/O J.P. MORGAN PARTNERS 1221 AVENUE OF THE AMERICAS 39TH FLOOR NEW YORK NY 10020-1080 0 0 1 0 0001243235 JPMP MASTER FUND MANAGER L P JP MORGAN PARTNERS LLC 1221 AVENUE OF THE AMERICAS 40TH FLOOR NEW YORK NY 10020 0 0 1 0 0001243236 JPMP CAPITAL CORP C/O J.P. MORGAN PARTNERS, LLC 1221 AVENUE OF THE AMERICAS 40TH FLOOR NEW YORK NY 10020 0 0 1 0 0000019617 J P MORGAN CHASE & CO 270 PARK AVE 39TH FL NEW YORK NY 10017 0 0 1 0 0001162622 JP MORGAN PARTNERS GLOBAL INVESTORS LP 1221 AVENUE OF THE AMERICAS 40TH FLOOR NEW YORK NY 10020 0 0 1 0 0001169890 J P MORGAN PARTNERS GLOBAL INVESTORS CAYMAN LP C/O J P MORGAN PARTNERS 1221 AVENUE OF THE AMERICAS 40TH FL NEW YORK NY 10020 0 0 1 0 0001169889 J P MORGAN PARTNERS GLOBAL INVESTORS CAYMAN II LP C/O J P MORGAN PARTNERS 1221 AVENUE OF THE AMERICAS 40TH FL NEW YORK NY 10020 0 0 1 0 0001311208 JPMP GLOBAL FUND BILL BARRETT A LP 1221 AVENUE OF THE AMERICAS 39TH FLOOR NEW YORK NY 10020 0 0 1 0 0001311207 JPMP GLOBAL FUND BILL BARRETT LP 1221 AVENUE OF THE AMERICAS 39TH FLOOR NEW YORK NY 10020 0 0 1 0 Common Stock 3382856 D Common Stock 578471 I See footnote Common Stock 251691 I See footnote Common Stock 32660 I See footnote Common Stock 101211 I See footnote Common Stock 41095 I See footnote Common Stock 81424 I See footnote Common Stock 112992 I See footnote The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors, L.P. The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman), L.P. The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Cayman) II, L.P. The amount shown represents the beneficial ownership of the Issuer's equity securities by JPMP Global Fund/Bill Barrett A, L.P. The amount shown represents the beneficial ownership of the Issuer's equity securities by JPMP Global Fund/Bill Barrett, L.P. The amount shown represents the beneficial ownership of the Issuer's equity securities by J.P. Morgan Partners Global Investors (Selldown), L.P. The amount shown represents the beneficial ownership of the Issuer's equity securities by JPMP Global Fund/Bill Barrett/Selldown, L.P. J.P. Morgan Partners (BHCA), L.P. By: JPMP Master Fund Manager, L.P., its general partner By: JPMP Capital Corp., its general partner By: /s/ Jeffrey C. Walker President 2004-12-27