THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

Dril-Quip, Inc. (DRQ)

3/29/2006 Proxy Information

Registration Rights Agreement

The Company has entered into a registration rights agreement among the Company, Messrs. Reimert, Smith, Walker, Reimert Family Partners, Ltd. and Four Smiths’ Company, Ltd. (the “Registration Rights Agreement”). The Registration Rights Agreement provides for registration rights pursuant to which, upon the request of any of Messrs. Reimert, Smith and Walker (the “Requesting Holders”), the Company will file a registration statement under the Securities Act of 1933, as amended (the “Securities Act”), to register the Common Stock subject to the agreement (“Registrable Securities”) held by such Requesting Holders and any other stockholders who are parties to the Registration Rights Agreement and who desire to sell Registrable Securities pursuant to such registration statement, subject to a maximum of two requests by each of Messrs. Reimert, Smith and Walker or their successors and assigns. In addition, subject to certain conditions and limitations, the Registration Rights Agreement provides that Messrs. Reimert, Smith, and Walker may participate in any registration by the Company (including any registration resulting from any exercise of a demand right under the Registration Rights Agreement) of any of its equity securities in an underwritten offering. The registration rights covered by the Registration Rights Agreement generally are transferable to transferees (whether by assignment or by death of the holder) of the Registrable Securities covered thereby. The Registration Rights Agreement generally terminates when all Registrable Securities (i) have been distributed to the public pursuant to a registration statement covering such securities that has been declared effective under the Securities Act, or (ii) may be distributed to the public in accordance with the provisions of Rule 144(k) (or any similar provision then in force) under the Securities Act.

Stockholders Agreement

Messrs. Reimert, Smith and Walker, Reimert Family Partners, Ltd. and Four Smiths’ Company, Ltd. are parties to a stockholders agreement (the “Stockholders Agreement”) pursuant to which each party has agreed to vote the shares of Common Stock held by such party to elect to the Company’s Board of Directors one designee of Mr. Reimert and Reimert Family Partners, Ltd. (the “Reimert Stockholders”), one designee of Mr. Smith and Four Smiths’ Company, Ltd. (the “Smith Stockholders”) and one designee of Mr. Walker. The rights under the Stockholders Agreement are transferable to any heir or legal representative of Messrs. Reimert, Smith or Walker who acquires Common Stock upon the death of such stockholder and who agrees to be bound by the provisions of such Agreement. In the event the Reimert Stockholders, collectively, the Smith Stockholders, collectively, or Mr. Walker (or their permitted transferees as described in the preceding sentence), own less than 10% of the total number of issued and outstanding shares of Common Stock of the Company, the rights and obligations of such person under the Stockholders Agreement are terminated.

Under the terms of the Stockholders Agreement, Messrs. Reimert and Smith have designated themselves to the Company’s Board of Directors at the Annual Meeting.

3/23/2005 Proxy Information

The Company has entered into a registration rights agreement among the Company, Messrs. Reimert, Smith, Walker, and Loveless, Reimert Family Partners, Ltd., Four Smith’s Company, Ltd. and Loveless Enterprises, Ltd. (the “Registration Rights Agreement”). The Registration Rights Agreement provides for registration rights pursuant to which, upon the request of any of Messrs. Reimert, Smith and Walker (the “Requesting Holders”), the Company will file a registration statement under the Securities Act of 1933, as amended (the “Securities Act”), to register the Common Stock subject to the agreement (“Registrable Securities”) held by such Requesting Holders and any other stockholders who are parties to the Registration Rights Agreement and who desire to sell Registrable Securities pursuant to such registration statement, subject to a maximum of two requests by each of Messrs. Reimert, Smith and Walker or their successors and assigns. In addition, subject to certain conditions and limitations, the Registration Rights Agreement provides that Messrs. Reimert, Smith, Walker and Loveless may participate in any registration by the Company (including any registration resulting from any exercise of a demand right under the Registration Rights Agreement) of any of its equity securities in an underwritten offering. The registration rights covered by the Registration Rights Agreement generally are transferable to transferees (whether by assignment or by death of the holder) of the Registrable Securities covered thereby. The Registration Rights Agreement generally terminates when all Registrable Securities (i) have been distributed to the public pursuant to a registration statement covering such securities that has been declared effective under the Securities Act, or (ii) may be distributed to the public in accordance with the provisions of Rule 144(k) (or any similar provision then in force) under the Securities Act.

Messrs. Reimert, Smith and Walker, Reimert Family Partners, Ltd. and Four Smith’s Company, Ltd. are parties to a stockholders agreement (the “Stockholders Agreement”) pursuant to which each party has agreed to vote the shares of Common Stock held by such party to elect to the Company’s Board of Directors one designee of Mr. Reimert and Reimert Family Partners, Ltd. (the “Reimert Stockholders”), one designee of Mr. Smith and Four Smith’s Company, Ltd. (the “Smith Stockholders”) and one designee of Mr. Walker. The rights under the Stockholders Agreement are transferable to any heir or legal representative of Messrs. Reimert, Smith or Walker who acquires Common Stock upon the death of such stockholder and who agrees to be bound by the provisions of such Agreement. In the event the Reimert Stockholders, collectively, the Smith Stockholders, collectively, or Mr. Walker (or their permitted transferees as described in the preceding sentence), own less than 10% of the total number of issued and outstanding shares of Common Stock of the Company, the rights and obligations of such person under the Stockholders Agreement are terminated.

Under the terms of the Stockholders Agreement, Mr. Walker has designated himself to the Company’s Board of Directors at the Annual Meeting.

3/22/2004 Proxy Information

Registration Rights Agreement

The Company has entered into a registration rights agreement among the Company, Messrs. Reimert, Smith, Walker, and Loveless, Reimert Family Partners, Ltd., Four Smith’s Company, Ltd. and Loveless Enterprises, Ltd. (the “Registration Rights Agreement”). The Registration Rights Agreement provides for registration rights pursuant to which, upon the request of any of Messrs. Reimert, Smith and Walker (the “Requesting Holders”), the Company will file a registration statement under the Securities Act of 1933, as amended (the “Securities Act”), to register the Common Stock subject to the agreement (“Registrable Securities”) held by such Requesting Holders and any other stockholders who are parties to the Registration Rights Agreement and who desire to sell Registrable Securities pursuant to such registration statement, subject to a maximum of two requests by each of Messrs. Reimert, Smith and Walker or their successors and assigns. In addition, subject to certain conditions and limitations, the Registration Rights Agreement provides that Messrs. Reimert, Smith, Walker and Loveless may participate in any registration by the Company (including any registration resulting from any exercise of a demand right under the Registration Rights Agreement) of any of its equity securities in an underwritten offering. The registration rights covered by the Registration Rights Agreement generally are transferable to transferees (whether by assignment or by death of the holder) of the Registrable Securities covered thereby. The Registration Rights Agreement generally terminates when all Registrable Securities (i) have been distributed to the public pursuant to a registration statement covering such securities that has been declared effective under the Securities Act, or (ii) may be distributed to the public in accordance with the provisions of Rule 144(k) (or any similar provision then in force) under the Securities Act.

Stockholders Agreement

Messrs. Reimert, Smith and Walker, Reimert Family Partners, Ltd. and Four Smith’s Company, Ltd. are parties to a stockholders agreement (the “Stockholders Agreement”) pursuant to which each party has agreed to vote the shares of Common Stock held by such party to elect to the Company’s Board of Directors one designee of Mr. Reimert and Reimert Family Partners, Ltd. (the “Reimert Stockholders”), one designee of Mr. Smith and Four Smith’s Company, Ltd. (the “Smith Stockholders”) and one designee of Mr. Walker. The rights under the Stockholders Agreement are transferable to any heir or legal representative of Messrs. Reimert, Smith or Walker who acquires Common Stock upon the death of such stockholder and who agrees to be bound by the provisions of such Agreement. In the event the Reimert Stockholders, collectively, the Smith Stockholders, collectively, or Mr. Walker (or their permitted transferees as described in the preceding sentence), own less than 10% of the total number of issued and outstanding shares of Common Stock of the Company, the rights and obligations of such person under the Stockholders Agreement are terminated.

3/28/2003 Proxy Information

The Company has entered into a registration rights agreement among the Company, Messrs. Reimert, Smith, Walker, and Loveless, Reimert Family Partners, Ltd., Four Smith's Company, Ltd. and Loveless Enterprises, Ltd. (the "Registration Rights Agreement"). The Registration Rights Agreement provides for registration rights pursuant to which, upon the request of any of Messrs. Reimert, Smith and Walker (the "Requesting Holders"), the Company will file a registration statement under the Securities Act of 1933, as amended (the "Securities Act"), to register the Common Stock subject to the agreement ("Registrable Securities") held by such Requesting Holders and any other stockholders who are parties to the Registration Rights Agreement and who desire to sell Registrable Securities pursuant to such registration statement, subject to a maximum of two requests by each of Messrs. Reimert, Smith and Walker or their successors and assigns. In addition, subject to certain conditions and limitations, the Registration Rights Agreement provides that Messrs. Reimert, Smith, Walker and Loveless may participate in any registration by the Company (including any registration resulting from any exercise of a demand right under the Registration Rights Agreement) of any of its equity securities in an underwritten offering. The registration rights covered by the Registration Rights Agreement generally are transferable to transferees whether by assignment or by death of the holder) of the Registrable Securities covered thereby. The Registration Rights Agreement generally terminates when all Registrable Securities (i) have been distributed to the public pursuant to a registration statement covering such securities that has been declared effective under the Securities Act, or (ii) may be distributed to the public in accordance with the provisions of Rule 144(k) (or any similar provision then in force) under the Securities Act.