Exhibit 3.3 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF NECHES RIVER HOLDING CORP. June 6, 2002 Neches River Holding Corp., a corporation organized and existing under the laws of the State of Delaware (the "Corporation"), hereby certifies that: FIRST: The name of the Corporation is Neches River Holding Corp.; SECOND: The Certificate of Incorporation of the Corporation was filed with the Delaware Secretary of State on the 3rd day of May, 1999; THIRD: The Board of Directors of the Corporation (the "Board of Directors") has duly adopted this amendment and restatement of the Certificate of Incorporation in accordance with the provisions of Sections 242 and 245 of the Delaware General Corporation Law; and FOURTH: The Certificate of Incorporation of the Corporation is hereby restated and amended in its entirety to read as follows: 1. Name. The name of the corporation is Neches River Holding Corp. (the "Corporation"). 2. Address; Registered Agent. The address of the Corporation's registered office in the State of Delaware is located at 1209 Orange Street, in the City of Wilmington, County of New Castle. The name of its registered agent at such address is The Corporation Trust Company. 3. Purpose. The purpose of the Corporation is to engage exclusively in the following activities: (a) to engage in the ownership of a ninety nine percent (99%) partnership interest in Port Arthur Coker Company L.P. (the "Partnership"); (b) to act as a limited partner of the Partnership; (c) to issue one or more guarantees of the debt of Port Arthur Finance Corp. (the "Financing Company"; together with the Corporation, the Partnership and Sabine River Holding Corp., the "Project Companies") to be incurred in connection with the Project 2 (as defined in Article 9 below) (the "Guarantees") and to enter into any and all documents in furtherance of its obligations thereunder; (d) to pledge its ownership interest in the Partnership to the Financing Parties (as defined in Article 9 below) to secure the financing of the Project; (e) to enter into one or more equity contribution agreements in connection with the equity funding of the Project by Blackstone Capital Partners III Merchant Banking Fund L.P., Blackstone Offshore Capital Partners III L.P. and Blackstone Family Investment Partnership III L.P. (together with each of the direct and indirect owners thereof, "Blackstone") and Occidental Petroleum Corporation ("Occidental"); and (f) to engage in any lawful act or activity, and to exercise such powers permitted to corporations organized under the laws of the State of Delaware. 4. Capitalization. The total number of shares of capital stock which the Corporation shall have authority to issue is one thousand (1,000) shares of Common Stock with a par value of $0.01 per share. 5. By-Laws. In furtherance and not in limitation of the powers conferred by statute, the Board of Directors of the Corporation is expressly authorized to adopt, amend or repeal the By-Laws of the Corporation. 6. Liability of Directors. Except as otherwise provided by the General Corporation Law of the State of Delaware as the same exists or may hereafter be amended, the liability of the directors of the Corporation for monetary damages shall be eliminated to the fullest extent permissible under Delaware law. Any repeal or modification of this Article 6 by the stockholders of the Corporation shall not adversely affect any right or protection of a director of the Corporation existing at the time of such repeal or modification. 7. Indemnification. The Corporation shall, to the fullest extent permitted by the provisions of the General Corporation Law of Delaware, as now or hereafter in effect, indemnify all persons whom it may indemnify under such provisions. Any repeal or modification of this Article 7 shall not adversely affect any right or protection of a director of the Corporation existing at the time of such repeal or modification. 8. Amendment of Certificate of Incorporation. The Corporation reserves the right to amend, alter, change or repeal any provision contained in this Certificate of Incorporation, in the manner now or hereafter prescribed by statute, and all rights conferred upon stockholders herein are granted subject to this reservation. 9. Additional Definitions. The following terms use herein shall have the following meanings: "Financing Documents" means any and all documents to be executed in connection with the Project which evidence or secure the financing of the construction of 3 new delayed coking unit, hydrocracker, sulfur complex and related assets by the Partnership at the Clark refinery in Port Arthur, Texas or the on-going working capital requirements of the Partnership including, without limitation (i) a common security agreement, (ii) one or more loan agreements, (iii) a transfer restrictions agreement, (iv) an intercreditor agreement, (v) a guaranty insurance policy and reimbursement agreement, (vi) a debt service reserve account insurance guarantee, (vii) a note purchase agreement, (viii) an indenture, (ix) notes, (x) one or more mortgages, (xi) one or more pledge agreements, (xii) a registration rights agreement and (xiii) any other documents delivered under or in connection with any of the foregoing. "Financing Parties" means any financing parties that may at any time be party to the Financing Documents and any trustee or agent action on their behalf. "Project" means the financing, construction, ownership and operation by the Partnership of a new delayed coking unit, hydrocracker, sulfur complex and related assets to be located at the Port Arthur, Texas refinery of Clark and the leasing from Clark, and operation of, the crude unit, the vacuum tower, two distillate hydrotreaters and one naphtha hydrotreater owned by Clark and located at its Port Arthur, Texas refinery. [The remainder of this page is intentionally left blank.] IN WITNESS WHEREOF, Neches River Holding Corp. has caused this Amended and Restated Certificate of Incorporation to be signed by Dennis Eichholz, its Senior Vice President - Finance and Controller on the date first written above. NECHES RIVER HOLDING CORP. ______________________________ Name: Dennis R. Eichholz Title: Senior Vice President - Finance and Controller