Our Leadership

Driving us forward

Our leadership is comprised of dedicated, honest, and inspiring individuals.

Together, they are responsible for leading Weatherford to new heights.

Karl Blanchard

Interim Chief Executive Officer, Executive Vice President and Chief Operating Officer

Karl Blanchard is the Executive Vice President and Chief Operating Officer of Weatherford. He assumed this position in August 2017. In his role at Weatherford, Karl oversees all region and product line operations, QHSE, sales, engineering, R&D, and supply chain.

Karl brings with him a career of significant achievement and valuable insight gained from more than 35 years in the oil and gas service industry. He served as Chief Operating Officer for Seventy Seven Energy where he was responsible for the drilling, hydraulic fracturing, and rental tool business units, as well as key support functions. As part of Seventy Seven’s leadership team, he successfully transitioned the company into a stand-alone publically traded company, executed cost management initiatives, and implemented a structured process focused on developing in-house leadership talent. These accomplishments resulted in Seventy Seven’s successful merger with Patterson-UTI, creating the second largest land driller and top five pressure pumping company in the United States.

Prior to Seventy Seven Energy, Karl spent more than 30 years at Halliburton where he was responsible for a significant portion of the company’s flagship product service lines, including production enhancement, cementing, and testing and subsea. He also served as Country Vice President of Halliburton Indonesia.

Karl has a Bachelor of Science degree in engineering from Texas A&M University and is a member of the Society of Petroleum Engineers.

Steven F. Carvalho

Vice President of Tax

Steven “Steve” Carvalho is the Vice President of Tax. He is responsible for all areas of tax, including global tax planning and compliance.

Steve began his tenure at Weatherford at the beginning of 2013 as the Assistant Vice President of Tax Operations, and was promoted to Vice President of Tax in 2018. During his tenure at Weatherford, he built the Company’s tax operations group from the ground up and led its remediation efforts to address material weakness in tax.

From 2002 to 2012, Steve performed several roles at PricewaterhouseCoopers including Consultant, Manager, and finally, Tax Director. He started his career with Arthur Andersen LLP. While in consulting, Steve served a full spectrum of clients from large multinational corporations to startup technology and life science companies. He has over 20 years’ experience in multinational taxation for large public companies in the areas of tax planning, tax compliance, and tax accounting.

Steve graduated from the University of Rhode Island with a degree in Accounting, and from Suffolk University Law School with a Law degree. He is admitted to the Bar in the Commonwealth of Massachusetts and is a member of the Massachusetts Bar Association.

He is married with three boys. In addition to spending time with his family, Steve enjoys running, hiking and other outdoor activities.

Ellen Chin

Senior Vice President & Chief Human Resource Officer

In this role, Ellen leads the global human resources function across all geozones and global product lines in addition to all corporate functions. Ellen is a member of the Diverse and Inclusive Committee where she helps ensure a talent management culture that provides our employees with the opportunity to bring their true selves to work.

Ellen joined Weatherford in 2012 and has held various roles in Human Resources, including Vice President of Human Resources for the Western Hemisphere.

Ellen is a business-minded professional with more than 25 years of executive leadership experience. Before Weatherford, Ellen served as the Global Director of Compensation, Benefits, Talent Management and HR Systems at Ascend Performance Materials. She was also the Western Hemisphere Director of Compensation and Benefits at Baker Hughes. She started her career in various consulting roles at AonHewitt and TowersWatson, assisting clients with HR transformations, developing Total Rewards strategies, and implementing state-of-the-art HR technologies and communications solutions.

Ellen holds a Bachelor of Business Administration degree in Management Information Systems from the McCombs School of Business at the University of Texas at Austin. She is married with three teenagers.

Karen David-Green

Senior Vice President, Stakeholder Engagement and Chief Marketing Officer

Karen David-Green is the Senior Vice President, Stakeholder Engagement and Chief Marketing Officer for multinational oilfield service company Weatherford International plc. Karen has served in leadership positions on Wall Street for 15 years and in the corporate sphere for 10, providing a well-rounded perspective on stakeholder relations.

Karen leads the strategic communications, international public affairs, global marketing, stakeholder engagement, and forward-thinking brand at Weatherford. She directs and oversees the Company’s Digital Strategy and Sustainability Agenda. She serves on the Weatherford Disclosure, Sustainability, Global Crisis Management and Business Continuity Committees, The Weatherford Foundation, and is an inaugural member of the Diversity and Inclusion Committee.

Currently, Karen serves on the Board of Directors for the Petroleum Equipment & Services Association, Small Steps Nurturing Center, and the Greater Houston Women’s Chamber of Commerce. She also serves on the IPAA/PESA Education Advisory Board to support student learning in science, mathematics, and emerging technology concepts. She is a member of the Greater Houston Partnership’s Executive Women’s Partnership and the Women’s Energy Network. Formerly, Karen served as a Board Member of the Young Women’s College Preparatory Academy and as an Advisory Board Member of The Women’s Fund.

She is a frequent speaker at industry events and conferences on topics related to the oil and gas industry and culture and stakeholder relations and has won numerous awards. Most recently, she was named one of the 2020 Top 50 Women in Oil and Gas by the National Diversity Council, and as a 2020 Global Leader of Influence by the World Affairs Council of Greater Houston. She was named 2019 Women Who Mean Business by the Houston Business Journal and a 2019 Breakthrough Woman of the Year by the Greater Houston Women’s Chamber of Commerce. Her team at Weatherford is recognized, earning international and local accolades for innovative marketing and communications strategies.

Karen earned her Bachelor of Business Administration in Finance from the University of Texas at Austin.

Stuart Fraser

Vice President, Chief Accounting Officer

Stuart Fraser is the Vice President, Chief Accounting Officer at Weatherford.

In this role, Stuart oversees the accounting and financial reporting functions for the Company and has been responsible for supporting the recent capital market transactions to reduce the debt ratio and streamline the cost structure in one of the most challenging markets in recent history.

Stuart joined Weatherford in 2015 and has served in various senior financial roles including Vice President and Corporate Controller and Vice President of Finance and Purchasing, Sourcing and Logistics. Before his role at Weatherford, he served a 19-year career with Schlumberger Ltd., where he held senior financial positions in global and regional capacities in the US, France, Angola, Malaysia, and Indonesia across a number of business segments covering operations, internal audit, taxation, supply chain, and transformation.

Stuart is a Chartered Accountant and holds a Bachelor of Business degree from the Edith Cowan University in Australia.

Christian A. Garcia

Executive Vice President and Chief Financial Officer

Garcia joined Weatherford in January 2020 as Executive Vice President and Chief Financial Officer of Weatherford International where he leads all financial activities, including accounting, treasury, tax, internal audit and investor relations. He also oversees corporate development and information technology.  Mr. Garcia has more than 30 years of leadership experience in the oilfield services, automotive electronics, software and consulting, and business equipment industries.

Prior to joining Weatherford, Mr. Garcia served in multiple executive roles including Executive Vice President and Chief Financial Officer of Visteon, a leader in automotive cockpit electronics, and acting Chief Financial Officer of Halliburton, an oilfield services company.  At Halliburton, he progressed through a variety of leadership positions including Chief Accounting Officer, Treasurer, and Senior Vice President of Investor Relations.  Earlier in his career, he held financial and planning roles with Landmark Graphics, Bell and Howell, and San Miguel Corporation in the Philippines.  Mr. Garcia served as board member and chairman of the audit committee for Keane Group from 2017 to 2019.

Mr. Garcia has been consistently selected to the All-America Executive Team by Institutional Investor magazine.  In 2011, he was awarded “IR Professional of the Year” given to the top investor relations professional in the United States based on the magazine’s survey of more than 1,300 security analysts and investment professionals.

Mr. Garcia has a bachelor's degree in business economics from the University of the Philippines, and a master's degree in management from Purdue University.  

Frederico Justus

President, International Operations

He is responsible for Weatherford’s Eastern Hemisphere operations and also serves on the Sustainability Committee, helping to provide a diverse perspective of sustainability needs across the organization.

Frederico joined Weatherford in 2010 and has held various positions including Vice President roles for Continental Europe, Europe and Caspian, Sub-Sahara Africa, and Middle East and North Africa.

In his more than 18 years experience in the oil and gas industry, he has worked all over the globe. Prior to joining Weatherford, Frederico spent 12 years working for Schlumberger in various management assignments.

Early in his career with Weatherford, Frederico was responsible for three different regions – Europe, Sub-Sahara Africa (SSA), and the Middle East – where he led substantial enhancements, including several integrated projects in Europe and several high-profile managed pressure drilling projects in offshore Angola. Under his leadership, Weatherford gained positive offshore market share distribution in the West Coast of SSA, won the biggest wireline contract ever executed in Kuwait, and also reduced non-productive time in the complex Saudi Arabia market by 50%.

Frederico graduated with a Mechanical Engineering degree with specializations in Strategic Marketing at Stanford University and an Integrated Reservoir Management degree from the Institute of Petroleum and Imperial College, London.