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Board of Directors

Mammoth | Energy

Arthur Amron


Mr. Amron has served as one of our directors since January 2019. Until December 31, 2023, Mr. Amron was a Partner and the General Counsel of Wexford Capital LP (“Wexford”), an SEC-registered investment advisor. He joined Wexford as General Counsel in 1994 and became a Partner in 1999. During the time he was employed by Wexford, Mr. Amron actively participated in various private equity transactions, particularly in the bankruptcy and restructuring areas, and served on the boards and creditors’ committees of a number of public and private companies in which Wexford has held investments. Mr. Amron is currently, and for over 10 years has been, a director of Nephros, Inc., a public commercial stage medical device company (NASDAQ: NEPH). From 1991 to 1994, Mr. Amron was an associate at Schulte Roth & Zabel LLP, specializing in corporate and bankruptcy law, and from 1984 to 1991, Mr. Amron was an associate at Debevoise & Plimpton LLP specializing in corporate litigation and bankruptcy law. Mr. Amron holds a J.D. from Harvard University, a B.A. in Political Theory from Colgate University and is an inactive member of the New York Bar.

Arthur Smith


Mr. Smith has served as one of our directors since our initial public offering in October 2016. He founded Triple Double Advisors, LLC, an investment advisory firm focusing on the energy industry, in 2007 and is its President and Managing Member, a position he has held since August 2007. Mr. Smith was Chairman and Chief Executive Officer of John S. Herold, Inc., an independent energy research firm, from 1984 until the firm was merged into IHS, Inc. in 2007. Prior to that, Mr. Smith was an energy equity analyst at Oppenheimer & Co., Inc. (1982-1984), The First Boston Corp. (1979-1982) and Argus Research Corp. (1976-1979). Since September 2015, Mr. Smith has served on the board of independent crude storage operator, Fairway Energy. Mr. Smith served on the board of directors of Plains All American GP LLC, the general partner of Plains All America Pipeline, L.P., from 1999 until 2010. Mr. Smith is also a former director of PAA Natural Gas Storage, L.P. from April 2010 until December 2013 and Pioneer Southwest Energy Partners, L.P. from May 2008 until December 2013. Mr. Smith is a former director of Pioneer Natural Resources (1993-1998), Cabot Oil & Gas Corporation (1996-2000) and Evergreen Resources, Inc. (2000- 2004), and was a past appointee to the National Petroleum Council. Mr. Smith holds a Bachelor of Administration from Duke University and a Masters of Business Administration from New York University’s Stern School of Business. In addition, he holds the Certified Financial Analyst designation. Mr. Smith is a Fellow and active in the National Association of Corporate Directors.

Arty Straehla

Chief Executive Officer and Director

Arty Straehla has served as our Chief Executive Officer and as a member of our board of directors since our formation on June 3, 2016. Mr. Straehla has served as the Chief Executive Officer of the general partner of Mammoth Partners since February 1, 2016. Prior to joining our company, Mr. Straehla was employed as Chief Executive Officer by Serva Group LLC, an oilfield equipment manufacturer, from July 2010 to January 2016. Mr. Straehla was employed by Diamondback Energy Services, Inc. from January 2006 to November 2008, where his last position was Chief Executive Officer. In December 2005, Mr. Straehla completed a 26-year career with the Goodyear Tire and Rubber Co. where his last position was the director of consumer tire manufacturing for the North American consumer tire operations. In this capacity, Mr. Straehla oversaw eight tire plants with 12,000 employees, a $2.5 billion operating budget, a $115.0 million capital expenditures budget and a production capacity of 100 million tires per year. Mr. Straehla holds a Bachelor of Science degree in Secondary Education and a Master of Arts degree in History from Oklahoma State University. Mr. Straehla also has a Master of Business Administration degree from Oklahoma City University.

Jim Palm


Mr. Palm has served as one of our directors since June 2017. Mr. Palm most recently served as a director of Gulfport Energy Corporation (“Gulfport”) from February 2006 and as Chief Executive Officer of Gulfport from December 2005, in each case until his retirement in February 2014. Prior to joining Gulfport, Mr. Palm pursued oil and gas investments primarily in Oklahoma, the Texas Panhandle and Kansas as the manager and owner of Crescent Exploration, LLC, a company he founded in 1995. Mr. Palm currently serves as a member of the Industry Advisory Committee of the Oklahoma Corporation Commission. From October 2001 through October 2003, Mr. Palm served as the Chairman of the Oklahoma Energy Resources Board. From 1997 through 1999, Mr. Palm served as the President of the Oklahoma Independent Petroleum Association. Mr. Palm received a Bachelor of Science degree in Mechanical Engineering in 1968, and a Masters in Business Administration in 1971, both from Oklahoma State University.

Paul Jacobi

Independent Director

Mr. Jacobi has served as one of our directors since June 2020. Since 1996, Mr. Jacobi has served in various positions at Wexford Capital and is currently a managing director responsible for Wexford’s private equity energy investments. From 1995 to 1996, Mr. Jacobi worked for Moody’s Investors Services as an analyst covering the investment banking and asset management industries. From 1993 to 1995, Mr. Jacobi was employed by Kidder Peabody & Co. as a senior financial analyst in the investment banking group. From 1988 to 1993, Mr. Jacobi worked for KPMG Peat Marwick as an audit manager in the financial services practice. Mr. Jacobi holds a BS in accounting from Villanova University.

Corey Booker


Dr. Corey Booker has served as one of our directors since August 2020. Dr. Booker is a maternal-fetal medicine specialist who focuses on high-risk pregnancies. He is the founder/CEO of OnPulse, a company that helps employers manage their healthcare expenditures while improving their employee outcomes. He also serves on the Board of Trustees for HarborPath, Inc., a non-profit patient assistance program, and on the Board of Trustees for Trinity School of Durham and Chapel Hill, an independent school for students in grades K through 12.

Dr. Booker attended the University of Maryland, College Park where he received a Bachelor of Science in Neurobiology and Physiology. He attended medical school at Creighton University where he served as a Washington Health Policy Fellow at the National Committee for Quality Assurance (NCQA). He completed his residency at Penn State Milton S. Hershey Medical School and went on to complete a fellowship in Maternal-Fetal Medicine at the University of North Carolina at Chapel Hill. While in fellowship, he received a master’s degree in Clinical Informatics from the Fuqua School of Business at Duke University.