X0202 4/A 2007-09-04 2007-09-06 0 0001127342 GMX RESOURCES INC GMXR 0001187023 CENTENNIAL ENERGY PARTNERS LLC 575 LEXINGTON AVENUE 33RD FLOOR NEW YORK NY 10022 0 0 1 0 0000898406 SELDIN PETER K 575 LEXINGTON AVENUE 33RD FLOOR NEW YORK NY 10022 0 0 1 0 0001035917 CENTENNIAL ENERGY PARTNERS L P 575 LEXINGTON AVENUE 33RD FLOOR NEW YORK NY 10022 0 0 1 0 Common Stock 2007-09-04 4 P 0 15000 30.9765 A 1525368 D Common Stock 2007-09-04 4 P 0 15000 30.9765 A 2417464 I By Centennial Energy Partners, L.L.C. as Managing Member Common Stock 2007-09-05 4 P 0 10000 31.9615 A 1535368 D Common Stock 2007-09-05 4 P 0 10000 31.9615 A 2427464 I By Centennial Energy Partners, L.L.C. as Managing Member Common Stock 2007-09-06 4 P 0 7500 32.2969 A 1542868 D Common Stock 2007-09-06 4 P 0 7500 32.2969 A 2434964 I By Centennial Energy Partners, L.L.C. as Managing Member This Form 4 is being amended to separately report the securities directly owned by Centennial Energy Partners, L.P., which is a Reporting Person. These securities were previously included in total indirect securities held by the Reporting Persons. 15,000 shares were purchased by Centennial Energy Partners, L.P., which is a Reporting Person. 1,525,368 shares are held directly by Centennial Energy Partners, L.P. which is a Reporting Person and 892,096 shares are held by other private investment vehicles to which Centennial Energy Partners, L.L.C. serves as general partner. These securities are directly owned by Centennial Energy Partners, L.P. and other private investment vehicles to which Centennial Energy Partners, L.L.C. serves as general partner. The securities may be deemed to be beneficially owned by Centennial Energy Partners, L.L.C. and Peter K. Seldin. Centennial Energy Partners, L.L.C. is the general partner of Centennial Energy Partners, L.P. and certain other private investment vehicles. Peter K. Seldin is the Managing Member of Centennial Energy Partners, L.L.C. Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purpose of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. 10,000 shares were purchased by Centennial Energy Partners, L.P., which is a Reporting Person. 1,535,368 shares are held directly by Centennial Energy Partners, L.P. which is a Reporting Person and 892,096 shares are held by other private investment vehicles to which Centennial Energy Partners, L.L.C. serves as general partner. 7,500 shares were purchased by Centennial Energy Partners, L.P., which is a Reporting Person. 1,542,868 shares are held directly by Centennial Energy Partners, L.P. which is a Reporting Person and 892,096 shares are held by other private investment vehicles to which Centennial Energy Partners, L.L.C. serves as general partner. Centennial Energy Partners, L.L.C., By: /s/ Peter K. Seldin, Managing Member 2007-10-23 Peter K. Seldin 2007-10-23 Centennial Energy Partners, L.P., By: Centennial Energy Partners, L.L.C., General Partner, By: /s/ Peter K. Seldin, Managing Member 2007-10-23