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Board of Directors
Please take a moment to acquaint yourself with our management team. Our directors and officers are dedicated to the continued growth and success of the Company. The result is a Unit that is efficient and capable of handling the demands of a growing company.

John G. Nikkel

Mr. Nikkel joined the Company in 1983 as its President and a director. In 2001, Mr. Nikkel became Chief Executive Officer and he was named Chairman of the Board of Directors, effective August 1, 2003. Effective April 1, 2005, he retired as Chief Executive Officer, but remains Chairman of the Board. From 1976 until January 1982 when he co-founded Nike Exploration Company, Mr. Nikkel was an officer and director of Cotton Petroleum Corporation, serving as the President of the Company from 1979 until his departure. Prior to joining Cotton, Mr. Nikkel was employed by Amoco Production Company for 18 years, last serving as Division Geologist for Amoco's Denver Division. Mr. Nikkel presently serves as President and a director of Nike Exploration Company. Mr. Nikkel received a Bachelor of Science degree in Geology and Mathematics from Texas Christian University.

J. Michael Adcock


Mr. Adcock was elected a director of Unit in December 1997. He is an attorney and currently manages a private trust that deals in real estate, oil and gas properties and commercial banking as well as other equity investments. He is Chairman of the Board of Arvest Bank, Shawnee, Oklahoma and Mid America Healthcare, Inc. Between 1997 and September, 1998 he was the Chairman of the Board of Ameribank and President and Chief Executive Officer of American National Bank and Trust Company of Shawnee, Oklahoma, and Chairman of AmeriTrust Corporation, Tulsa, Oklahoma. Prior to holding these positions, he was engaged in the private practice of law and served as General Counsel for Ameribank Corporation. Mr. Adcock is the Chairman of the Execitive Sessions of Unit's Board of Directors.

Gary R. Christopher


Mr. Christopher, since January 2004, has been engaged in personal investments and consulting. Between August 1999 and January 2004, he served as President and Chief Executive Officer and a director of PetroCorp Incorporated, and from March 1996 to August 1999 he served as the Acquisition Coordinator of Kaiser-Francis Oil Company. His other past professional experience includes serving as Vice President of Acquisitions for Indian Wells Oil Company and Senior Vice President and Manager of Energy Lending for First National Bank of Tulsa and the Bank of Oklahoma. He worked for Amerada Hess Corporation as a Reservoir Engineer and for Texaco, Inc. as a production Engineer. Mr. Christopher is a Registered Professional Engineer in the State of Oklahoma, a member of the Society of Petroleum Engineers, Society of Petroleum Evaluation Engineers, and the Oklahoma Independent Petroleum Association. Mr. Christopher received a Bachelor of Science degree in Petroleum Engineering from the University of Missouri. He is a past Director of the Petroleum Club of Tulsa, Middle Bay Oil Company, Three Tech Energy, PetroCorp Incorporated and a present Director of the Summit Bank of Oklahoma.

Steven B. Hildebrand


Mr. Hildebrand was elected director in October of 2008.  The Board has designated Mr. Hildebrand as an Audit Committee financial expert.  Mr. Hildebrand retired in March 2008 from a twenty-one year tenure at Dollar Thrifty Automotive Group, where he spent his last ten years as Executive Vice President and Chief Financial Officer.  Before joining Dollar Thrifty, Mr. Hildebrand served in several positions for Franklin Supply Company from 1980 to 1987, including Controller and Vice President of Finance.  From 1976 to 1980, Mr. Hildebrand was an Audit Supervisor for the public accounting firm Coopers & Lybrand. 

King P. Kirchner


Mr. Kirchner, a co-founder of the Company, has been the Chairman of the Board and a director since 1963 and was President until November, 1983. Mr. Kirchner retired as Chairman of the Board, effective August 1, 2003, but remained on the Board until May 2011 when he became a director emeritus. Mr. Kirchner is a Registered Professional Engineer within the State of Oklahoma, having received degrees in Mechanical Engineering from Oklahoma State University and in Petroleum Engineering from the University of Oklahoma.

William B. Morgan


Mr. Morgan was elected a director of Unit in February 1988. Mr. Morgan has been Executive Vice President and General Counsel of St. John Health Systems, Inc., Tulsa, Oklahoma, since March 1, 1995 and, since October 1, 1996, the President of its principal for-profit subsidiary Utica Services, Inc. Before that, he was a Partner in the law firm of Doerner, Saunders, Daniel & Anderson, Tulsa, Oklahoma, for over 20 years.

Larry C. Payne


Mr. Payne was elected a director of Unit in May of 2011. Since April 2010, Mr. Payne has served as president and chief operating officer of Lansing NGL Services Natural Gas Liquids Division, a division of Lansing Trade Group, LLC, a commodities trading company located in Overland Park, Kansas. Between August 2009 and April 2010, Mr. Payne provided energy consulting services to private clients interested in the midstream energy business. From 2003 until August 2009, Mr. Payne served as President and chief operating officer of SemStream, LP, a midstream energy company engaged in natural gas liquids supply and marketing. Before joining SemStream, Mr. Payne served as Vice President of Commodity Management for Williams Midstream Marketing and Risk Management, LLC, and before that he served as Vice President of Natural Gas Liquids Supply, Trading and Risk Management for Texaco NGL. During his earlier years of service, Mr. Payne held numerous other positions in the energy industry, including executive positions with Enterprise Products, Aux Sable Liquid Products and Ferrellgas. Mr. Payne received a B.S. in Business Administration from Grambling State University, and an MBA from Texas Southern University with a concentration in Finance and Economics. Mr. Payne currently serves on the Board of Directors for several non-profit organizations: the Tulsa Day Center for the Homeless, the Reserve at Forrest Hills, and the Wayman Tisdale Foundation. Prior boards have included the Petrochemical Feedstock Association of the Americas, Big Brothers Big Sisters of Oklahoma, and the Board of Trustees for Friendship Church. Mr. Payne is a veteran of the U.S. Army, serving from 1969-1972.

G. Bailey Peyton


Mr. Peyton was elected a director of Unit in May of 2011. Mr. Peyton is currently President of Peyton Holdings Corp., a business he founded in 1985 for purposes of buying land, minerals and royalties. Mr. Peyton owns Perryton Feeders, LLC, a cattle business in Perryton, Texas, which he has owned since 2009 and for which he serves as managing member. Mr. Peyton also is current owner of Cuatro Cattle Company in Canadian, Texas. From 1984 to 2007, Mr. Peyton served as President of Upland Resources, Inc., an oil and gas exploration company founded by Mr. Peyton. Mr. Peyton currently serves on the Board of Directors of Happy State Bank in Amarillo, Texas, and the Citadelle Art Museum in Canadian, Texas. Mr. Peyton is a past President of the Panhandle Association of Landmen, Amarillo, Texas.

Larry D. Pinkston


Mr. Pinkston joined the Company in December 1981. He had served as Corporate Budget Director and Assistant Controller prior to being appointed as Controller in February 1985. He has been Treasurer since December 1986 and was elected to the position of Vice President and Chief Financial Officer in May 1989. In 2003, he was promoted to Executive Vice President and effective August 1, 2003, he assumed the office of President. In February of 2004, he was elected to the position of Chief Operating Officer. Effective April 1, 2005, with the retirement of John Nikkel, Mr. Pinkston assumed the office of Chief Executive Officer. He holds a Bachelor of Science Degree in Accounting from East Central University of Oklahoma and is a Certified Public Accountant.

Robert J. Sullivan, Jr.


Mr. Sullivan, Jr. is a Principal with Sullivan and Company LLC, a family-owned independent oil and gas exploration and production company founded in 1958. He is also the Founder (1989) and served as Chairman and CEO of Lumen Energy Corporation prior to its sale in 2004. Mr. Sullivan was appointed to Oklahoma Governor Frank Keating’s Cabinet as Secretary of Energy in March, 2002. He received a Bachelor of Business Administration degree from the University of Notre Dame and a Master of Business Administration degree from the University of Michigan. Mr. Sullivan is a Board Member of the Oklahoma Independent Petroleum Association, Oklahoma Energy Resources Board, St. John Medical Center, St. Joseph Residence, University of Notre Dame Alumni Association, and former Board Member of Catholic Charities and Gatesway Foundation. He also is Trustee for Tulsa’s Monte Cassino Endowment Trust, a Member of the University of Notre Dame, Graduate School Advisory Council and Past Chairman of the Tulsa School Boards of Cascia Hall Preparatory School, Monte Cassino School and the School of St. Mary.


John H. Williams


Mr. Williams was elected a director of Unit in December 1988. Prior to retiring on December 31, 1978, he was Chairman of the Board and Chief Executive Officer of The Williams Companies, Inc., where he continues to serve as an honorary director. Mr. Williams also serves as a director of Apco Argentina, Inc., Westwood Corporation and Willbros Group, Inc. In addition, Mr. Williams also serves as a director of the Gilcrease Museum and is a Trustee for the Tulsa Performing Arts Center Trust.

 

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Board of Directors
John G. Nikkel
J. Michael Adcock
Gary R. Christopher
Steven B. Hildebrand
William B Morgan
Larry C. Payne
G. Bailey Peyton
Larry D. Pinkston
Robert J. Sullivan, Jr.
John H. Williams
Audit Committee
Steven B. Hildebrand
J. Michael Adcock
Gary R. Christopher
William B Morgan
Nominating & Governance Committee
William B Morgan
J. Michael Adcock
Robert J. Sullivan, Jr.
John H. Williams
Compensation Committee
J. Michael Adcock
Steven B. Hildebrand
William B Morgan
John H. Williams
Director Emeritus
King P. Kirchner