Officers

Kirby Corporation

David W. Grzebinski

President and Chief Executive Officer

William G. Harvey

Executive Vice President and Chief Financial Officer

Christian G. O’Neil

President – Kirby Inland Marine, LP and Kirby Offshore Marine, LLC

Joseph H. Reniers

President – Kirby Distribution & Services, Inc.

Kim B. Clarke

Vice President and Chief Human Resource Officer

Ronald A. Dragg

Vice President and Controller

Eric S. Holcomb

Vice President – Investor Relations

Amy D. Husted

Vice President and General Counsel

Scott P. Miller

Vice President and Chief Information Officer

Kurt A. Niemietz

Vice President and Treasurer

William Matthew Woodruff

Vice President – Public and Governmental Affairs

Thomas G. Adler

Secretary

Marine Transportation

Kirby Inland Marine, LP

Christian G. O’Neil

President

James C. Guidry

Executive Vice President – Vessel Operations

Mel R. Jodeit

Executive Vice President – Marketing

John W. Sansing, Jr.

Senior Vice President – Maintenance

Todd M. Behlke

Vice President – Operations

Stephen C. Butts

Vice President – Sales

Renato A. Castro

Vice President and Controller

Craig T. Foret

Vice President – Logistics Management

Gordon A. Keenan

Vice President – Training

Patrick C. Kelly

Vice President – Sales

Lyle D. Marshall

Vice President – Sales

Richard C. Northcutt

Vice President – Sales and Horsepower Management

Cliff R. Stanich

Vice President – Sales

Cecil K. Wattigney

Vice President – Sales

Thomas H. Whitehead

Vice President – Sales

Kirby Offshore Marine, LLC

Christian G. O’Neil

President

James C. Guidry

Executive Vice President – Vessel Operations

John T. Hallmark

Executive Vice President – Sales and Strategy

Craig N. Tornga

Senior Vice President – Operations

William M. Withers

Senior Vice President – Sales

Renato A. Castro

Vice President and Controller

Kirby Ocean Transport Company

Christian G. O’Neil

President

John T. Hallmark

Vice President – Strategic Planning and Sales

William M. Withers

Executive Vice President

Osprey Line

John T. Hallmark

President

Distribution & Services

Kirby Distribution & Services, Inc.

Joseph H. Reiners

President

Mia Cradeur

Vice President and Controller

Kimberly A. Richard

Vice President – Marketing and Strategy

Kirby Engine Systems, LLC

Dorman Lynn Strahan

President

Engine Systems, Inc.

P. Scott Mangan

Vice President – East Coast

Marine Systems, Inc.

Thomas W. Bottoms

Vice President – Midwest

United Engines LLC

Ronnie E. Stover

Executive Vice President – Sales

Joshua C. Weed

Executive Vice President – Distribution Operations

Troy A. Bourgeois

Vice President – Oil and Gas Sales

Paul A. Martin

Vice President – Parts Operations

David L. Tonne

Vice President – Service Operations

United Manufacturing LLC

Ronnie E. Stover

Executive Vice President – Sales

Gregory L. Culp

Vice President – Engineered Products

Thermo King of Houston, LP

Jason K. Robison

Vice President

Stewart & Stevenson LLC

Jack L. Pieper

Vice President and Controller

Stewart & Stevenson Power Products LLC

John. H. Merrfield

President

Donald F. Mann

President – ADDA and FDDA

Joshua C. Weed

Executive Vice President – Distribution Operations

Andrew W. Hudson

Senior Vice President – Rental Operations

Troy A. Bourgeois

Vice President – Oil and Gas Sales

Paul A. Martin

Vice President – Parts Operations

David L. Tonne

Vice President – Service Operations

Stewart & Stevenson Manufacturing Technologies LLC

E. Max Hengst, Jr.

President

Ronnie E. Stover

Executive Vice President – Sales

Chad T. Joost

Senior Vice President – Sales and Marketing

Stewart & Stevenson de las Americas Colombia, Ltda

Rafael H. Garcia

President