SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) July 29, 2003. USG Corporation -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Commission File Number: 1-8864 ------ Delaware 36-3329400 ---------------------------------- ---------------------- (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 125 South Franklin Street, Chicago, Illinois 60606-4678 -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code (312) 606-4000 ------------------------ ITEM 12. RESULTS OF OPERATIONS AND FINANCIAL CONDITION. On July 29, 2003, USG Corporation issued a press release containing earnings information for the quarter ended June 30, 2003. A copy of the press release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference. SIGNATURE Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. USG CORPORATION Registrant Date: July 29, 2003 By: /s/ Richard H. Fleming ---------------------------- Richard H. Fleming, Executive Vice President and Chief Financial Officer EXHIBIT INDEX Exhibit No. Exhibit 99.1 USG Corporation press release dated July 29, 2003.