Leadership

Lee Tillman

Lee Tillman

President and CEO

Lee Tillman

Lee Tillman
President and CEO

Lee Tillman is president and CEO of Marathon Oil Corporation and a member of the Marathon Oil Corporation Board of Directors. He joined the Company in August 2013.

Prior to joining Marathon Oil, he served as vice president of engineering for ExxonMobil Development Company (a project design and execution company), where he was responsible for all global engineering staff engaged in major project concept selection, front-end design and engineering. He served as North Sea production manager and lead country manager for subsidiaries of ExxonMobil in Stavanger, Norway, from 2007 and 2010, and as acting vice president, ExxonMobil Upstream Research Company from 2006 to 2007. Mr. Tillman began his career in the oil and gas industry at Exxon Corporation in 1989 as a research engineer and has extensive operations management and leadership experience that has included assignments in Jakarta, Indonesia; Aberdeen, Scotland; Stavanger, Norway; Malabo, Equatorial Guinea; Dallas and New Orleans.

He is a board member of the American Petroleum Institute, American Exploration & Production Council and the Greater Houston Partnership, a member of the University of Houston Energy Advisory Board and the Chemical and Engineering Advisory Councils of Texas A&M University. He is also a member of the National Petroleum Council, the Business Roundtable and the Society of Petroleum Engineers. Mr. Tillman serves as a member of the Celebration of Reading Committee within the Barbara Bush Houston Literacy Foundation. He also is a member of the advisory board and currently president of Spindletop Charities.

Mr. Tillman holds a B.S. in chemical engineering from Texas A&M University and a Ph.D. in chemical engineering from Auburn University.

Mitch Little

Mitch Little

Executive Vice President, Operations

Mitch Little

Mitch Little
Executive Vice President, Operations

Mitch Little is executive vice president, Operations, for Marathon Oil Corporation. In this role he oversees the Company's North America Resource Play operations as well as the Company’s Conventional businesses. He was appointed to this role in August 2016, after serving as vice president, Conventional.

Mr. Little joined Marathon in 1986, and has held a number of engineering and management positions of increasing scope and responsibility related to the Company’s U.S. production operations in Oklahoma, Wyoming, Louisiana and Alaska, as well as international production operations in Equatorial Guinea, Gabon and Libya. Mr. Little also served as general manager, Worldwide Drilling and Completions and managing director of Marathon Oil Norge AS, where he held responsibility for the Company’s activities in Norway.

Mr. Little earned a bachelor of science degree in petroleum engineering from the University of Wyoming in 1986 and is a 30 year member of the Society of Petroleum Engineers. Mr. Little serves on the board of directors of Interfaith CarePartners and the Offshore Energy Center.

Dane Whitehead

Dane Whitehead

Executive Vice President and CFO

Dane Whitehead

Dane Whitehead
Executive Vice President and CFO

Dane Whitehead is executive vice president and chief financial officer for Marathon Oil Corporation. He joined Marathon Oil in March 2017.

Mr. Whitehead has most recently served as executive vice president and CFO of both EP Energy Corp. and EP Energy LLC since May 2012. He was senior vice president of Strategy and Enterprise Business Development and a member of El Paso Corporation's executive committee from 2009 to 2012. He joined El Paso Exploration & Production Company as senior vice president and CFO in 2006. Prior to that, Whitehead was vice president, controller and chief accounting officer of Burlington Resources Inc., and formerly senior vice president and CFO of Burlington Resources Canada.

Pat Wagner

Pat Wagner

Executive Vice President, Corporate Development and Strategy

Pat Wagner

Pat Wagner
Executive Vice President, Corporate Development and Strategy

Pat Wagner is Executive Vice President of Corporate Development and Strategy for Marathon Oil Corporation. In this role he has responsibility for Business Development, Resource Exploration, Business Planning and Marketing. He joined the Company in April 2014.

Mr. Wagner previously served as senior vice president, Western Business Unit, for QR Energy LP and the affiliated Quantum Resources Management, which he joined in early 2012 as vice president, Exploitation. Prior to that, from 2010 to 2012, Wagner was managing director in Houston for Scotia Waterous, the oil and gas arm of Scotiabank.

Before joining Scotia, Wagner was vice president, Gulf of Mexico, for Devon Energy Corp. in Houston. He began at Devon in 2003 as manager, International Exploitation. From 2000 to 2003, Wagner worked for Ocean Energy Inc. as manager, Acquisitions & Divestitures, and manager, International Exploitation.

Wagner was with The Scotia Group in Dallas and Houston between 1990 and 2000, progressing through positions of increasing responsibility, eventually establishing and managing a new company office in Houston as a senior vice president.

Wagner began his career as a project engineer with Exxon Company in 1988. He holds Bachelor of Science and Master of Science degrees in petroleum engineering from the University of Missouri-Rolla.

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Reggie Hedgebeth

Reggie Hedgebeth

Senior Vice President, General Counsel and Secretary

Reggie Hedgebeth

Reggie Hedgebeth
Senior Vice President, General Counsel and Secretary

Reggie Hedgebeth is senior vice president, general counsel and secretary of Marathon Oil Corporation. He joined the Company in April 2017.

Prior to joining Marathon Oil, Mr. Hedgebeth served as general counsel, corporate secretary and chief compliance officer for Spectra Energy Corp and general counsel for Spectra Energy Partners, LP. Previously, he served as senior vice president, general counsel and secretary with Circuit City Stores, Inc., and vice president of legal for The Home Depot, Inc. He began his legal career as an associate at King and Spalding, LLP and prior to law school held various finance and commercial real estate positions at GE Capital.

Mr. Hedgebeth holds a bachelor’s degree in economics from Penn State University, and a doctor of jurisprudence from Harvard Law School.

He serves on the board of directors of Brink’s Inc. and Theatre Under the Stars, and is on the external advisory committee for the Schreyer Honors College at Penn State University. Mr. Hedgebeth is also an Investment Committee Member with Memorial Hermann Health System.

Deanna Jones

Deanna Jones

Vice President, Human Resources and Administrative Services

Deanna Jones

Deanna Jones
Vice President, Human Resources and Administrative Services

Deanna Jones is Vice President of Human Resources and Administrative Services for Marathon Oil Corporation. She joined the Company in January 2014.

Ms. Jones most recently served as vice president of Human Resources and chief commercial officer for Newfield Exploration Co. Prior to that, from 2008 until 2010, she served as Human Resource director, Reservoir Production Group of Schlumberger. Between 2006 and 2008, Ms. Jones held the position of vice president, North America for Schlumberger Information Solutions, and in that role, was responsible for leading software, information and the company’s related infrastructure organization in the U.S.

From 2003 to 2006, she served as vice president of Personnel for Schlumberger Information Solutions, and was responsible for leading all human resource related activities for Schlumberger's world-wide workforce from its London office. During the period 1993 to 2003, she worked in a variety of managerial assignments of increasing responsibility for Schlumberger in Canada and the U.S.

Ms. Jones holds a Bachelor of Commerce Degree from the University of Calgary, Canada; and has completed executive business courses in human resources at the University of Michigan and in finance at the IMD Business School in Lausanne, Switzerland. Ms. Jones serves on the board of directors of Communities in Schools of Houston.

Cathy Krajicek

Cathy Krajicek

Vice President, Conventional

Cathy Krajicek

Cathy Krajicek
Vice President, Conventional

Cathy Krajicek is vice president, Conventional Assets, which includes the Company's operations in Equatorial Guinea, Libya, the Kurdistan Region of Iraq, the U.K. and Oil Sands Mining in Alberta, Canada, as well as corporate Health, Environment, Safety and Security (HES&S). She served as vice president of Technology and Innovation until August 2016, and vice president of HES&S from January through November 2015.

Ms. Krajicek joined Marathon Oil in 2007, and has held a number of positions of increasing responsibility including regional vice president of operations in Equatorial Guinea, asset team manager for Gulf of Mexico production operations, development manager for the Droshky Field Development in the Gulf of Mexico, and asset team manager for Bakken Shale production operations in North Dakota. Prior to joining Marathon Oil, she spent 22 years with Conoco and then ConocoPhillips where she held a variety of reservoir engineering and asset management and development management positions for upstream and mid-stream operating businesses and assets under development in the United States, Indonesia and Venezuela.

Ms. Krajicek graduated from the Colorado School of Mines with bachelor of science and master of science degrees in Petroleum Engineering. She is a member of the IPAA/PESA Petroleum Academy Education Advisory Board and serves on the University of Houston Petroleum Engineering Advisory Board.

Bruce McCullough

Bruce McCullough

Vice President, Technology and Innovation, and CIO

Bruce McCullough

Bruce McCullough
Vice President, Technology and Innovation, and CIO

Bruce McCullough is vice president, Technology and Innovation and Chief Information Officer for Marathon Oil Corporation, which includes Information Technology, Innovation and Analytics, and Business Process Optimization.

Prior to joining Marathon Oil in June 2013, Mr. McCullough was director, Global Business Systems for Anadarko Petroleum Corp. While at Anadarko, he led efforts to develop and maintain systems and execute strategic projects in both operations and corporate support functions. Prior to Anadarko, he was a partner at Accenture and served in a variety of capacities for clients such as Atlantic Richfield Company, Mitchell Energy and Development Corporation and Burlington Resources.

Mr. McCullough earned a bachelor of arts degree in computer science from Baylor University. He serves on the board of directors of Junior Achievement of Southeast Texas.

Gary Wilson

Gary Wilson

Vice President, Controller and Chief Accounting Officer

Gary Wilson

Gary Wilson
Vice President, Controller and Chief Accounting Officer

Gary Wilson is vice president, controller and chief accounting officer of Marathon Oil Corporation. He joined Marathon Oil in October 2014.

Mr. Wilson most recently served as director of corporate accounting for Noble Energy, a global exploration and production company based in Houston. Prior to that, he held various roles at Noble Energy including director of global operation services finance, director of controls and reporting, international finance manager, controller of financial planning & analysis and associate controller. Mr. Wilson began his career at Arthur Andersen.

Mr. Wilson holds a bachelor’s degree in accounting from the University of Arkansas at Fayetteville. He also has an Executive MBA from the University of Texas at Austin, and is a certified public accountant. Mr. Wilson serves on the board of directors of Trees for Houston.

Morris Clark

Morris Clark

Vice President and Treasurer

Morris Clark

Morris Clark
Vice President and Treasurer

Morris Clark is vice president and treasurer of Marathon Oil Corporation. He joined Marathon Oil in 2002 as senior tax counsel and was elected to his current position in January 2014.

Between 2002 and 2007, Mr. Clark provided extensive tax-related advice and counsel at both the corporate and business unit levels. He was appointed assistant treasurer in 2007 and, since that time, has played an instrumental role in helping manage matters related to the Company’s global treasury needs, including the corporate finance, cash & banking operations, enterprise risk management, and credit and counterparty risk functions.

Mr. Clark earned a Bachelor of Science degree in Accounting from Southern University and subsequently earned a Juris Doctorate degree from Tulane Law School, and later a Master of Laws degree (LL.M.) in Taxation from New York University School of Law.

His experience prior to joining Marathon Oil included serving as an accountant with Touche Ross & Company and as a tax attorney with Bracewell & Patterson and Enron North America. Mr. Clark serves on the board of directors for Dress for Success Houston.

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