THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

Deltic Timber Corporation (DEL)

3/17/2006 Proxy Information

Messrs. Murphy, Nolan and Rev. Keller are first cousins and Mr. Pierson is the spouse of a first cousin of Messrs. Murphy, Nolan and Rev. Keller. These four directors, their spouses, and members of their extended families directly or indirectly own in the aggregate approximately 26 percent of the outstanding stock of the Company. The members of these extended families cover four generations and number in excess of a hundred individuals. There is no formal or informal agreement to act in concert or as a group regarding each family member’s investment in the Company. No member of these extended families is employed by the Company. See also “Ownership of Directors and Officers” on page 11 of this proxy statement.

The Company manages under contract timberland in which it does not own an interest for third parties. Messrs. Nolan, Murphy, Pierson, and Rev. Keller, and/or members of their respective families (the “families”) are parties to management contracts with the Company for timberland which is owned by them or entities of which they are officers, directors, stockholders, trustees, and/or partners. The Company’s standard terms and conditions are utilized in all arrangements with third parties, including those with the families. These terms and conditions include an annual per acre fee, cost plus 15 percent for special silvicultural projects and a five percent commission from the proceeds of timber sales. The families own approximately 96 percent of the outstanding shares of Loutre Land and Timber Company, an Arkansas corporation. Loutre Land and Timber Company owns in fee or has an undivided interest in approximately 43,600 acres of timberland, a portion of which is managed by the Company. In 2005, Loutre Land and Timber Company paid to Deltic $65,493 for management fees, special silvicultural services, and timber sales commissions. Management fees, special silvicultural services, and timber sales commissions paid to the Company in 2005 from entities affiliated with Mr. Nolan, and that for purposes hereof are attributed to him even though he does not beneficially own all of such entities, totaled $75,891.

3/23/2005 Proxy Information

Messrs. Murphy, Nolan and Rev. Keller are first cousins and Mr. Pierson is the spouse of a first cousin of Messrs. Murphy, Nolan and Rev. Keller. These four directors, their spouses, and members of their extended families directly or indirectly own in the aggregate approximately 26 percent of the outstanding stock of the Company. The members of these extended families cover four generations and number in excess of a hundred individuals. There is no formal or informal agreement to act in concert or as a group regarding each member’s investment in the Company. No member of these extended families is employed by the Company.

The Company manages under contract timberland in which it does not own an interest for third parties. Messrs. Nolan, Murphy, Pierson, and Rev. Keller, and members of their respective families (the “families”) are parties to management contracts with the Company for timberland which is owned by them or entities of which they are officers, directors, stockholders, trustees, and/or partners. The Company’s standard terms and conditions are utilized in all arrangements with third parties, including the families. These terms and conditions include an annual per acre fee, cost plus 15 percent for special silvicultural projects and a five percent commission from the proceeds of timber sales. The families own approximately 96 percent of the outstanding shares of Loutre Land and Timber Company, an Arkansas corporation. Loutre Land and Timber Company owns in fee or has an undivided interest in approximately 43,600 acres of timberland, a portion of which is managed by the Company. In 2004, Loutre Land and Timber Company paid to Deltic $121,411 for management fees, special silvicultural services, and timber sales commissions. Management fees, special silvicultural services, and timber sales commissions paid to the Company in 2004 from entities affiliated with Mr. Nolan, and that for purposes hereof are attributed to him even though he does not beneficially own all of such entities, totaled $141,872.

3/22/2004 Proxy Information

Messrs. Murphy, Nolan and Rev. Keller are first cousins and Mr. Pierson is the spouse of a first cousin of Messrs. Murphy, Nolan and Rev. Keller. These four directors, their spouses, and members of their extended families directly or indirectly own in the aggregate approximately 26 percent of the outstanding stock of the Company. The members of these extended families cover four generations and number in excess of a hundred individuals. There is no formal or informal agreement to act in concert or as a group regarding each member’s investment in the Company. No member of these extended families is employed by the Company. See also “Certain Stock Ownership” on pages 12 and 13 of this proxy statement.

The Company manages under contract timberland in which it does not own an interest for third parties. Messrs. Nolan, Murphy, Pierson, and Rev. Keller, and members of their respective families (the “families”) are parties to management contracts with the Company for timberland which is owned by them or entities of which they are officers, directors, stockholders, trustees, and/or partners. The Company’s standard terms and conditions are utilized in all arrangements with the families, as well as with other third parties. These terms and conditions include an annual per acre fee, cost plus 15 percent for special silvicultural projects and a five percent commission from the proceeds of timber sales. The families own approximately 96 percent of the outstanding shares of Loutre Land and Timber Company, an Arkansas corporation. Loutre Land and Timber Company owns in fee or has an undivided interest in approximately 43,600 acres of timberland, a portion of which is managed by the Company. In 2003, Loutre Land and Timber Company paid to Deltic $44,936 for management fees, special silvicultural services, and timber sales commissions.

3/21/2003 Proxy Information

Messrs. Keller, Murphy and Nolan are first cousins and Mr. Pierson is the spouse of a first cousin of Messrs. Keller, Murphy and Nolan. These four directors, their spouses, and members of their extended families directly or indirectly own in the aggregate approximately 26 percent of the outstanding stock of the Company. The members of these extended families cover four generations and number in excess of a hundred individuals. There is no formal or informal agreement to act in concert or as a group regarding each member’s investment in the Company.

The Company owns undivided interests in several tracts of timberland that it operates and manages on behalf of itself and co-owners. In addition, the Company manages under contract timberland in which it does not own an interest for third parties. Messrs. Nolan, Murphy, Keller and Pierson and members of their respective families (the “families”) own certain undivided interests in timberland managed by the Company. In addition, the families are parties to management contracts with the Company for timberland which is owned by them or entities of which they are officers, directors, stockholders, trustees and/or partners. The Company’s standard terms and conditions are utilized in all arrangements with the families, as well as with other third parties. These terms and conditions include an annual per acre fee, cost plus 15 percent for special silvicultural projects and a 5 percent commission from the proceeds of timber sales. The families own approximately 96 percent of the outstanding shares of Loutre Land and Timber Company, an Arkansas corporation. Loutre Land and Timber Company owns in fee or has an undivided interest in approximately 32,000 acres of timberland, a portion of which is managed by the Company. In 2002, Loutre Land and Timber Company paid to Deltic $66,199 for management fees, special silvicultural services and timber sales commissions.