| | Domicile of Incorporation |
| KIRBY CORPORATION – PARENT AND REGISTRANT | Nevada |
| | |
| SUBSIDIARIES OF THE PARENT AND REGISTRANT | |
| Kirby Corporate Services, LLC | Delaware |
| KIM Holdings, Inc. | Delaware |
| Kirby Terminals, Inc. | Texas |
| Sabine Transportation Company | Delaware |
| AFRAM Carriers, Inc. | Delaware |
| Kirby Distribution & Services, Inc. | Delaware |
| Kirby Tankships, Inc. | Delaware |
| Kirby Ocean Transport Company | Delaware |
| Kirby Offshore Marine, LLC | Delaware |
| K Equipment, LLC | Texas |
| Osprey Line, L.L.C. (66 2/3%) | Texas |
| | |
| CONTROLLED SUBSIDIARIES | |
| KIM Partners, LLC (Subsidiary of KIM Holdings, Inc.) | Louisiana |
| Kirby Inland Marine, LP (KIM Holdings, Inc. 1% General Partner, KIM Partners, LLC 99% Limited Partner) | Delaware |
| Greens Bayou Fleeting, LLC (subsidiary of Kirby Inland Marine, LP) | Texas |
| Dixie Carriers, Inc. (subsidiary of Kirby Inland Marine, LP) | Texas |
| San Jac Marine, LLC (subsidiary of Kirby Inland Marine, LP) | Delaware |
| Diesel Dash LLC (subsidiary of Kirby Distribution & Services, Inc.) | Delaware |
| Kirby Engine Systems LLC (subsidiary of Kirby Distribution & Services, Inc.) | Delaware |
| Marine Systems, Inc. (subsidiary of Kirby Engine Systems LLC) | Louisiana |
| Engine Systems, Inc. (subsidiary of Kirby Engine Systems LLC) | Delaware |
| United Holdings LLC (subsidiary of Kirby Distribution & Services, Inc.) | Delaware |
| United Engines LLC (subsidiary of United Holdings LLC) | Colorado |
| UE Manufacturing LLC (subsidiary of United Holdings LLC) | Colorado |
| Compression Systems LLC (subsidiary of United Holdings LLC) | Colorado |
| Thermo King of Houston, LLC (subsidiary of United Holdings LLC) | Texas |
| Thermo King of Dallas, LLC (subsidiary of United Holdings LLC) | Texas |
| San Antonio Thermo King, Inc. (subsidiary of Thermo King of Houston, LLC) | Texas |
| Kirby Offshore Marine Operating, LLC (subsidiary of Kirby Offshore Marine, LLC) | Delaware |
| Kirby Offshore Marine Hawaii, LLC (subsidiary of Kirby Offshore Marine Operating, LLC) | Delaware |
| Kirby Offshore Marine Pacific, LLC (subsidiary of Kirby Offshore Marine Operating, LLC) | Delaware |
| Kirby Offshore Marine, Inc. (subsidiary of Kirby Offshore Marine Operating, LLC) | Delaware |
| Inversiones Kara Sea SRL (subsidiary of Kirby Offshore Marine Operating, LLC) | Venezuela |
| K-Sea Canada Holdings, Inc. (subsidiary of Kirby Offshore Marine, Inc.) | Delaware |
| K-Sea Canada Corp. (subsidiary of K-Sea Canada Holdings, Inc.) | Nova Scotia |
| Penn Maritime Inc. (subsidiary of Kirby Offshore Marine, LLC) | Delaware |
| Stewart & Stevenson LLC (subsidiary of Kirby Distribution & Services, Inc.) | Delaware |
| Stewart & Stevenson Power Products LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Stewart & Stevenson Canada Inc. (subsidiary of Stewart & Stevenson LLC) | Canada |
| Stewart & Stevenson de las Americas Colombia Ltda. (Stewart & Stevenson Petroleum Services LLC 1% General Partner, Stewart & Stevenson LLC 99% Limited Partner) | Colombia |
| Stewart & Stevenson de Venezuela, S.A. (subsidiary of Stewart & Stevenson LLC) | Venezuela |
| Stewart & Stevenson Material Handling LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Hunt Power Systems LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Stewart & Stevenson Petroleum Services LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Stewart & Stevenson Distributor Holdings LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Stewart & Stevenson Finance LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Stewart & Stevenson Manufacturing Technologies LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Stewart & Stevenson Acquisition LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Stewart & Stevenson Rentals LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Stewart & Stevenson FDDA LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
| Transmissions Y Embragues, S.A. (subsidiary of Stewart & Stevenson de Venezuela, S.A.) | Venezuela |
| Stewart & Stevenson Hong Kong Limited (subsidiary of Stewart & Stevenson Petroleum Services LLC) | Hong Kong |
| Higman Marine, Inc. (subsidiary of Kirby Inland Marine, LP) | Delaware |
| Higman Barge Lines, Inc. (subsidiary of Higman Marine, Inc.) | Delaware |
| Higman Marine Services, Inc. (subsidiary of Higman Marine, Inc.) | Delaware |
| Higman Service Corporation (subsidiary of Higman Marine, Inc.) | Delaware |
| Alamo Barge Lines, LLC (subsidiary of Kirby Inland Marine, LP) | Delaware |
| 16530 Peninsula Blvd. LLC (subsidiary of Kirby Inland Marine, LP) | Texas |
| Empty Barge Lines, Inc. (subsidiary of Kirby Inland Marine, LP) | Texas |
| Empty Barge Lines II, Inc. (subsidiary of Kirby Inland Marine, LP) | Texas |
| Empty Barge Lines III, Inc. (subsidiary of Kirby Inland Marine, LP) | Texas |
| EBL Marine I LLC (subsidiary of Kirby Inland Marine, LP) | Texas |
| EBL Marine II LLC (subsidiary of Kirby Inland Marine, LP) | Texas |
| EBL Marine III LLC (subsidiary of Kirby Inland Marine, LP) | Texas |
| Hollywood Chem 107, Ltd (90.8%) | Texas |
| Hollywood Chem 108, Ltd (93.1%) | Texas |
