Board of Directors

Barbara M. Baumann, 63, joined the board of directors in January 2014. She is president and owner of Cross Creek Energy Corp., an energy advisory firm with investments in domestic oil and natural gas. She is also a senior advisor for First Reserve Corp., a private equity firm focused on energy. Previously, Baumann served in various areas of finance and operations during an 18-year career with Amoco (later BP Amoco). Those roles included chief financial officer of Ecova Corp., Amoco's wholly owned environmental-remediation unit, and vice president of Amoco's San Juan Basin business unit. She earned a bachelor's degree from Mount Holyoke College and a master's in business administration from the Wharton School of the University of Pennsylvania. Her other current board memberships include Buckeye Partners, L.P., and Putnam Mutual Funds.

John E. Bethancourt, 67, joined the board of directors in January 2014. He is a retired Chevron executive, serving most recently as executive vice president for technology and services, where he oversaw Chevron's environmental, health and safety efforts, major project management, procurement and mining operations. Bethancourt began his career with Getty Oil Co. in 1974 and joined Texaco Inc. through a 1984 merger. He earned a bachelor's degree in petroleum engineering from Texas A&M University. Bethancourt previously served on the board of trustees of the Texas A&M Foundation and is a past director of the Society of Petroleum Engineers and the National Action Council for Minorities in Engineering.

Ann G. Fox, 42, joined the board of directors in June 2019. She is president, chief executive officer and a board member of Nine Energy Services, Inc. (Nine), a Houston-based oilfield services company. Fox joined Nine in 2013 and previously served as chief financial officer and vice president of strategic development. Prior to joining Nine, she worked for SCF Partners, a private-equity firm supporting the oilfield services and equipment industries. Fox also has experience as an investment banking analyst and as a Marine, where she served several tours of duty in Iraq on a team that reported directly to Gen. David Petraeus. She received a bachelor’s degree in diplomacy and security in world affairs from Georgetown University and a master’s in business administration from Harvard University.

Dave Hager, 62, was elected by the board of directors to the position of president and chief executive officer, effective Aug. 1, 2015. Shareholders elected him to the board of directors in June 2016. Hager previously served on the board from 2007 until 2009, when he joined the company as executive vice president of exploration and production. Subsequently, Hager served as chief operating officer before taking his current positions. From 1999 to 2006, Hager was employed by Kerr-McGee Corp., serving in various capacities, most recently as chief operating officer. Hager has a bachelor of science degree in geophysics from Purdue University and a master's degree in business administration from Southern Methodist University. He serves on the board of directors and the executive committee of the American Petroleum Institute, as well as the board of directors of the American Exploration & Production Council.

Robert H. Henry, 66, joined the board of directors in August 2010. Henry was appointed in 1994 by President Bill Clinton as judge to the U.S. Court of Appeals for the Tenth Circuit. He left the bench in 2010 as chief justice. Henry was dean and professor of law at Oklahoma City University School of Law from 1991 to 1994 and served as the university’s president from 2010 to 2018. In 1987, Henry was elected attorney general of Oklahoma, where he served until 1991. He also served as an Oklahoma state representative from 1976 to 1986. Henry earned a bachelor's degree with high honors from the University of Oklahoma and a juris doctorate degree from the University of Oklahoma College of Law. Henry also serves on the board of the Oklahoma Medical Research Foundation.

Michael M. Kanovsky, 70, joined the board of directors in 1998. He was a co-founder of Northstar Energy Corp. and served on its board of directors from 1982 until Northstar was acquired by Devon in 1998. Kanovsky has been president of Sky Energy Corp. since 1993 and also serves as a director of Bonavista Petroleum Ltd. He has a bachelor’s degree in mechanical engineering from Queen’s University and a master’s in business administration from Western University.

John Krenicki Jr., 57, joined the board of directors in June 2018. He is a senior operating partner at the private-equity investment firm Clayton, Dubilier & Rice LLC and is chairman or lead director of three privately held entities controlled by Clayton, Dubilier & Rice. Previously, Krenicki built a 29-year career at General Electric Co., where he served as vice chairman as well as president and CEO of GE Energy, among other executive positions. Krenicki currently serves as lead director on the board of NCI Building Systems, Inc., and previously served as board chairman of ServiceMaster Global Holdings and CHC Group and as a director of Hess Corp. He has a master’s degree in management from Purdue University and a bachelor’s degree in mechanical engineering from the University of Connecticut. He also is a member of the National Petroleum Council.

Keith O. Rattie, 65, was chief executive officer of Questar Corp. from 2002 to 2010 and president from 2001 to 2010. He also served on Questar’s board from 2001 until 2014, including as chairman from 2003 until 2010 and non-executive chairman from 2010 to 2012. Before joining Questar, Rattie was an executive with Coastal Corporation, a diversified energy company. He also spent 19 years with Chevron Corp. in various engineering and management positions, including as general manager of Chevron’s international gas unit. Rattie earned a bachelor’s degree in electrical engineering from the University of Washington and a master’s in business administration from St. Mary’s College. Rattie sits on the boards of Ensco PLC and Select Energy Services, Inc. Previously, he served as a director of Rockwater Energy Solutions, QEP Resources, EP Energy Corp. and Zions First National Bank.

Mary P. Ricciardello, 63, joined the board of directors in 2007. She retired in 2002 after a 20-year career with Reliant Energy Inc., a leading independent power producer and marketer. Ricciardello served in various financial management positions with Reliant, including comptroller, vice president and most recently as senior vice president and chief accounting officer. She is a certified public accountant and serves on the board of directors of Noble Corp. She holds a bachelor’s in business administration from the University of South Dakota and a master’s in business administration from the University of Houston.