1 Exhibit 10.4 ASSUMPTION AGREEMENT This Assumption Agreement dated as of July 20, 1999 is by and among Lamar Advertising Company, a Delaware corporation ("LAC"), Lamar Media Corp., a Delaware corporation ("LMC"), and the direct and indirect subsidiaries of such corporations (collectively and together with all such subsidiaries as may be formed hereafter, the "Subsidiaries") whose signature lines appear at the end of this Agreement. Introduction LAC has been formed to own 100% of the outstanding equity of LMC, which was formerly known as "Lamar Advertising Company". To facilitate the accounting for certain overhead expenses, the parties hereto wish LAC to assume, and be exclusively liable for, all "Assumed Obligations" as hereinafter defined. 1. Assumption of Assumed Obligations. Effective as of the date hereof, LAC hereby assumes the obligations to pay (i) all directors' fees and fees, costs and expenses in respect of all professional and related services which may be rendered to LMC and the Subsidiaries from time to time, including, without limitation, the fees and expenses of accountants, lawyers, investment bankers and other consultants retained in connection with matters affecting LMC and the Subsidiaries collectively, (ii) all premiums, fees and expenses in connection with all insurance policies and employee benefit programs (including workmen's compensation) maintained on behalf of LMC and any Subsidiary, (iii) all fees, costs and expenses incurred in connection with acquisitions and financings, including, without limitation, banking and underwriting fees (including underwriters discounts) and (iv) all fees, costs and expenses in connection with the purchase by LAC and its Subsidiaries of data communications services (all such obligations being hereinafter referred to collectively as "Assumed Obligations"). Assumed Obligations shall include not only obligations presently due and payable but all such obligations described in the preceding sentence which may become due and payable at any time in the future. 2. Release of LMC and Subsidiaries. Effective as of the date hereof, simultaneously with the assumption by LAC of obligations pursuant to Paragraph 1 hereof, (i) LMC and the Subsidiaries are hereby released from all obligations with respect to the Assumed Obligations and (ii) the parties agree to cause all trade creditors owed Assumed Obligations to invoice LAC exclusively for trade payables with respect thereto, with the understanding that LAC will be the exclusive obligor thereunder. 3. Accounting. Effective as of the date hereof, the parties hereto shall institute accounting controls and procedures necessary to account for the assumption and release provided for in this Agreement. 2 4. Miscellaneous. This Agreement shall remain in full force and effect until terminated by all of the parties hereto. The parties hereto agree to take such further measures as any party shall deem appropriate to effectuate the provisions of this Agreement. This Agreement shall be governed by the laws of the State of Delaware. LAMAR ADVERTISING COMPANY /s/ Kevin P. Reilly, Jr. ------------------------------------------ By: Kevin P. Reilly Jr. Title: President and Chief Executive Officer LAMAR MEDIA CORP. /s/ Kevin P. Reilly, Jr. ------------------------------------------ By: Kevin P. Reilly Jr. Title: President and Chief Executive Officer THE SUBSIDIARIES INTERSTATE LOGOS, INC. /s/ Kevin P. Reilly, Jr. ----------------------------------------------- By: Kevin P. Reilly Jr. Title: Vice President THE LAMAR CORPORATION /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF MOBILE, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF COLORADO SPRINGS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer 2 3 LAMAR ADVERTISING OF SOUTH MISSISSIPPI, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF JACKSON, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR TEXAS GENERAL PARTNER, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF SOUTH GEORGIA, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer TLC PROPERTIES, INC. /s/ Kevin P. Reilly ---------------------------------------------- By: Kevin P. Reilly Title: TLC PROPERTIES II, INC. /s/ Kevin P. Reilly ---------------------------------------------- By: Kevin P. Reilly Title: 3 4 LAMAR PENSACOLA TRANSIT, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF YOUNGSTOWN, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer NEBRASKA LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President OKLAHOMA LOGO SIGNS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President MISSOURI LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President OHIO LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President 4 5 UTAH LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President TEXAS LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President MISSISSIPPI LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President GEORGIA LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President SOUTH CAROLINA LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President VIRGINIA LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President 5 6 MINNESOTA LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President MICHIGAN LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President NEW JERSEY LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President FLORIDA LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President KENTUCKY LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President NEVADA LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President 6 7 TENNESSEE LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President KANSAS LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President COLORADO LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President NEW MEXICO LOGOS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: Vice President LAMAR ADVERTISING OF HUNTINGTON-BRIDGEPORT, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF PENN, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer 7 8 LAMAR ADVERTISING OF MISSOURI, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF MICHIGAN, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ELECTRICAL, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF SOUTH DAKOTA, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF WEST VIRGINIA, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer 8 9 LAMAR ADVERTISING OF ASHLAND, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer AMERICAN SIGNS, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR OCI NORTH CORPORATION /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR OCI SOUTH CORPORATION /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF GREENVILLE, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ROBINSON, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer 9 10 LAMAR ADVERTISING OF KENTUCKY, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR ADVERTISING OF ROLAND, INC. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR TEXAS LIMITED PARTNERSHIP BY: Lamar Texas General Partner, Inc. /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer LAMAR TENNESSEE, L.L.C. BY: The Lamar Corporation, its Manager /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer AIR, L.L.C. BY: The Lamar Corporation, its Manager /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer 10 11 TLC PROPERTIES, L.L.C. BY: TLC Properties, Inc., its Manager /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: CANADIAN TODS, LIMITED /s/ Kevin P. Reilly, Jr. ---------------------------------------------- By: Kevin P. Reilly, Jr. Title: President and Chief Executive Officer 11