Exhibit 5.3

December 11, 2017

Genesis Energy, L.P.

Genesis Energy Finance Corporation

Guarantors

919 Milam Street

Suite 2100

Houston, TX 77002

Ladies and Gentlemen:

We have acted as special Louisiana counsel to Red River Terminals, L.L.C. and TDC, L.L.C., each a Louisiana limited liability company (the “Companies” and each, a “Company”), in connection with the registration pursuant to a Registration Statement on Form S-3 (File No. 333-203259) (as amended, the “Registration Statement”), filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Act”), of the offering and sale by Genesis Energy, L.P., a Delaware limited partnership (the “Partnership”), and Genesis Energy Finance Corporation, a Delaware corporation (the “Issuers”), of an aggregate principal amount of $450,000,000.00 of 6.250% Senior Notes due 2026 (the “Notes”), including the guarantees (each, a “Guarantee”) of the Notes by certain of the Partnership’s subsidiaries (the “Subsidiary Guarantors”), including the Companies, to be issued under the Indenture referred to below. The Notes will be issued pursuant to an Indenture dated as of May 21, 2015 (the “Base Indenture”), among the Issuers, the Subsidiary Guarantors and U.S. Bank National Association, as trustee (the “Trustee”), as supplemented by the Eleventh Supplemental Indenture thereto, dated as of December 11, 2017 (the “Supplemental Indenture” and, together with the Base Indenture, the “Indenture”), among the Issuers, the Subsidiary Guarantors and the Trustee.

Documents Examined

In connection with our opinions, we have examined (i) a photocopy of the executed Indenture, (ii) photostatic copies of each of the articles of organization of Red River Terminals, L.L.C. and TDC, L.L.C., the Operating Agreement, dated July 11, 2007, of TDC, L.L.C. and the Amended and Restated Operating Agreement, dated July 11, 2007, of Red River Terminals, L.L.C., and (iii) certificates of the Companies and certificates of public officials, in each case as we have deemed appropriate as a basis for such opinions.

Assumptions

We have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals and the conformity to authentic original documents of all copies submitted to us as conformed and certified or reproduced copies. We also have assumed the legal capacity of natural persons, the existence and entity power of all parties to the Indenture and all other documents, other than the Companies, and the due authorization, execution and delivery of the Indenture and all other documents by the parties thereto other than the Companies. We have assumed each member, manager, officer, or other

representative of the Companies (and each member, manager, officer, or other representative of any tier thereof) is validly existing and in good standing under the law of the jurisdiction of its formation and has taken all action necessary or received all necessary authorizations under any applicable organizational documents and applicable law to authorize the execution and delivery of articles of organization, operating agreements, resolutions, and authorizations governing the Companies and of the Indenture (including their respective Guarantees) and the performance by the Companies of their respective obligations under the Indenture (including their respective Guarantees). As we were not present at the execution of the Indenture, we have relied upon certificates of the Companies as to the physical execution by a duly elected, qualified and acting officer of each Company, of the Indenture and have assumed that a copy of the Indenture has been irrevocably and unconditionally delivered to the Trustee on behalf of the Issuers and the Subsidiary Guarantors.

Opinions

Based upon and subject to the foregoing and the assumptions, limitations, qualifications and exceptions set out below, we are of the opinion that:

Limitations, Exceptions, and Qualifications

The foregoing opinions are subject to the following limitations, exceptions and qualifications:

The opinions expressed herein are written as of and relate solely to the date hereof, and we disclaim any obligation to update this Opinion in any manner or for any reason. The opinions expressed herein are rendered exclusively for your benefit in connection with the transactions described herein. Except as set forth below, the opinions expressed herein may not be used or relied upon by any other Person, nor may this Opinion or any copies or excerpts thereof be furnished to any other Person, filed with any government authority, quoted, cited or otherwise referred to without our prior written consent (except in connection with a legal or arbitral proceeding or as may be required by applicable law).

This opinion may be relied upon by Akin Gump Strauss Hauer & Feld LLP in connection with the opinion it is delivering to you as filed as an exhibit to the Registration Statement that we understand will be filed as a part of the Registration Statement. We hereby consent to the filing of copies of this opinion as an exhibit to the Registration Statement and to the use of our name in the prospectus supplement dated December 4, 2017 forming a part of the Registration Statement under the caption “Legal Matters.” In giving this consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Act and the rules and regulations thereunder.