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Management and Board of Governors

Mainstream Investors has assembled a diverse team of North Dakotans experienced in the areas of oil and gas, securities and investment, marketing and communications, real estate and business development. This team defines the vision and direction for the successful development of investment strategies and operations to maximize our opportunities in the Bakken Shale Play.

Mark R. Anderson
is the Chairman of our Board and has served as a Governor and our President and Chief Executive Officer since September 2012.  Prior to that, he spent 20 years working in the financial services industry, where he served in a variety of roles, including operations, account administration, new business development and executive leadership.  Mr. Anderson began his financial services career in 1990 with Piper Trust Company in Minneapolis, where he served in the company’s trust operations group.  In 1995, he moved to North Dakota and joined ND Holdings, Inc., serving first as a fund accountant and then as Shareholder Services Manager and Business Development Specialist for the company’s mutual fund servicing group.  In 1999, Mr. Anderson joined Wells Fargo Bank, N.A. as a personal trust officer and was responsible for sales and account administration in the Minot, North Dakota market. In 2003, he was recruited by Integrity Mutual Funds, Inc. to serve as president and chief operating officer and then as CEO.  In 2008, he joined Jackson National Asset Management, LLC in Chicago as Vice President of Investment Management and Separate Accounts before returning to North Dakota in 2011.  Mr. Anderson holds a Bachelor of Business Administration Degree in Advertising from the University of North Dakota.

Michael T. Donohue has served as our Vice President and Chief Operating Officer since October, 2012. He has over 33 years of experience in the securities industry, 30 of which were in management roles. Mr. Donohue started his career in the securities industry in 1979 as a Financial Adviser with Dean Witter Reynolds in Minot ND.  From 1982 – 2010, Mr. Donohue served as a Branch Manager in various offices of EF Hutton, Shearson, Smith Barney and Morgan Stanley Smith Barney.  In these positions, he was responsible for Compliance, Profit & Loss and Risk Management, Talent Acquisition, Training and Personnel Management, among other duties. During his tenure with Smith Barney, Mr. Donohue was also selected by senior management to assist with the training and development of Financial Advisers and branch management teams at both regional and national levels. After leaving Morgan Stanley Smith Barney in 2010, he served in regional management with US Bancorp Investments and Insurance Services and Integrity Viking Funds/Integrity Funds Distributor LLC. From June of 2011 to October 2012, Mr. Donohue was a Financial Adviser with Edward Jones. He studied Environmental Sciences/Pre-Med in College and also Emergency Medical Services, receiving certifications both as an EMT and an EMT-Intermediate.  He served as a volunteer Search and Rescue Medic for six years in the Pacific Northwest. He is married with two children.

Steve Bakke has served as a Governor since September 2012. Since 2006, Mr. Bakke has held the position of Chief Financial Officer of Eagle Operating Inc.  Eagle Operating, Inc. is an oil and gas operator, located in Kenmare, North Dakota. The company is involved in the exploration, development and production of oil and gas wells and leases, including the engagement of drilling, service, and work over contractors. Eagle Operating acts on its own behalf and as an agent for others and has primary responsibility for maintaining well operations and complying with state rules and regulations. Prior to Eagle Operating, Mr. Bakke was a Shareholder of Brady Martz and Associates, P.C. from 1991 to 2006 and was an employee of that firm from 1984 to 1991.  Mr. Bakke earned a degree in Accounting from the University of North Dakota and passed the Certified Public Accountant exam in 1980.  He is a member of the American Institute of Certified Public Accountants and the North Dakota Society of CPAs.

Jeff Zarling has served as a Governor since May 2013.  He is the founder and president of Dawa Solutions Group, LLC, a business development firm based in Williston, North Dakota.  Dawa developed the system used by the North Dakota Association of Oil and Gas Counties to operate and manage the Uniform County Permit program for the seventeen oil and gas producing counties in North Dakota.  Mr. Zarling and Dawa have also developed and produced numerous Bakken conferences, the Bakken Briefing and the Bakken Field Tour.  The Bakken Oil Products & Service Show, The Bakken Investor Conference, and The Bakken Housing Summit have placed Mr. Zarling in the center of hundreds of connections to people operating and investing in activities throughout western North Dakota. Mr. Zarling also speaks at a number of conferences produced across the country regarding the development and opportunities in the Bakken.  From 1998 to 2002, Mr. Zarling was a Sr. Programmer/Analyst at Graco, Inc.  His primary responsibility was creating the vision for and developing the Graco Intranet, where he worked with business units and other stakeholders to identify opportunities to solve business problems through Intranet applications. Prior to that, from 1996 to 1998, Mr. Zarling was an Internet Practice Manager/I.T. Consultant at Systems Resources Consulting.  His responsibilities and tasks included project management, technical sales, project proposal development, staff recruiting, staff training, and staff management. Mr. Zarling holds a Bachelor of Science in Management Information Systems from Metropolitan State University, St. Paul, MN.

Joel J. Feist has served as a Governor since May 2013.  Mr. Feist is the owner and president of Real Builders, Inc., based in Minot, North Dakota.  Mr. Feist began his construction career in 1975 as General Manager of Concrete Mobile Inc., where he served until 1995. He began working with his brother, Les Feist, at Real Builders, Inc., in 1995, and bought the business with his partner Leon Danielson in 2003. Since then, Real Builders has completed many building projects in the Minot area, concentrating mainly on residential development.  Mr. Feist currently serves on the Board of Directors of both the Minot Association of Builders (President 2009) and the North Dakota Association of Builders (President 2011). He was selected as “Builder of The Year” in 2005 and again in 2010 by the Minot Association of Builders.  Mr. Feist is also President of Souris Valley Ready Mix LLC, and serves on its Board of Directors. He also serves on the Board of Directors for the Candlewood Suites, Souris Valley Suites and Hampton Inn & Suites, all in Minot, ND, and is a member of the Rotary Club of Minot.

John M. Broschat has served as a Governor since May 2013.  Mr. Broschat grew up in Williston, North Dakota, and began his career in 1976 with Texas Instruments in Dallas, Texas, where he worked as an electrical engineer, designing infrared scanning systems for military aircraft.  In 1980, he returned to Williston to work with his father, Richard Broschat, at Broschat Engineering and Management Services, Inc.  Mr. Broschat began his work supervising completion and workover operations on wells in the field.  Familiar with field operations, he began expanding the company into operating and managing oil properties.  Mr. Broschat specializes in reservoir engineering, with an emphasis in oil and gas reserve studies and oil property evaluations and appraisals.  During this time, he was the sole evaluation engineer for a mineral acquisition company evaluating over 500 properties over a three-year period.  Mr. Broschat has performed oil and gas reserve and cash flow analysis for private and public companies, including annual reserve disclosures as required by the SEC for publicly-traded companies.  He is president of Broschat Engineering, a registered Professional Engineer and a member of the Society of Petroleum Engineers.  Mr. Broschat holds a Bachelor of Science Degree in Electrical Engineering from North Dakota State University. 

Samantha Roberts has served as a Governor since July 2013.  Ms. Roberts is a geologist with over 15 years of experience.  She was born in Williston, North Dakota and graduated from Williston High School.  Ms. Roberts began her geology career in Arizona working as a field geologist for an environmental consulting firm from 1995 to 1997.  In 1997, she went to work as a geologist for the state of Arizona at the Department of Environmental Quality and was responsible for conducting geologic evaluations of various contaminants at soil and ground water sites located throughout the state of Arizona.  During her time at the agency, Ms. Roberts was promoted to program manager of several environmental remediation programs which included both the federal and state Superfund programs as well as Department of Defense remediation sites.  In 2008, she began consulting as a geologist, eventually moving back to Williston in 2009.  She briefly worked as a landman to better understand the oil and gas industry.  In 2010, she began working as a well site geologist working on location during the drilling of the vertical and horizontal portions of the well.  Ms. Roberts has personally provided geologic consulting services on over 75 horizontal wells in the Bakken and Three Forks formation.  In 2015, Ms. Roberts began working for PSC, LLC as the Business Operations Manager.  PSC, LLC is an oilfield service company providing artificial lift equipment and well servicing products that has been operating in the Williston Basin Oilfield since 1972.  Ms. Roberts also owns Roberts Geology Services, Inc., and consults as a registered professional geologist.  She holds a Bachelor of Science Degree in Environmental Geology and a Graduate Certificate in GIS from the University of North Dakota.

Daryl Andersen has served as a Governor since July 2013. Mr. Andersen owns and operates Ham’s Well Service in Westhope, North Dakota. Ham’s well service provides workover rigs and hot oil trucks as well as roustabout, crane service and welding services to the oil and gas industry.  He acquired the company in the fall of 1993 and currently employs over 80 people. Mr. Andersen graduated from high school in Maxbass, ND in 1975.  Following his graduation, he worked on the family farm in the summer and on oil rigs in the winter. He acquired a lease mowing business in 1977 and mowed oil well sites and roads.  In 1979, he started a roustabout business to complement the lease mowing business that he had acquired two years earlier. In 1981, he opened a supply store in Westhope, ND with his father-in-law, who then owned Ham’s Well Service. Two years later, he opened a second store in Melita, Manitoba, Canada. In the mid-1980s, Mr. Andersen began buying and operating oil wells in the Roundup, Montana area and in Bottineau and Renville counties in North Dakota. Mr. Andersen served on the Westhope Park Board for two terms and on the Westhope School Board for 18 years (serving as President for half of that time). He is currently a member of the board of directors of the North Dakota Petroleum Council.

Michael Sweeney has served as a Governor since July 2013. Mr. Sweeney grew up in Sheridan, Wyoming and is President of The Sweeney Group, LLC. In June 2013, he sold two oilfield service companies, Summit Energy Services and Liquid Logistics, to Waste Management. Mr. Sweeney started Summit Energy Services out of his garage in April 2010, with five other employees. He wore many hats during Summit’s rapid growth, from field hand to corporate accountant. As he recruited others to fill these various roles, he began mentoring and training his management team to run Summit’s day-to-day operations, following a servant leadership model.  Prior to launching Summit, Mr. Sweeney worked as a Regional Manager for an oil and gas construction company.  It was this position that brought him to the Williston Basin in 2009.  He has extensive management experience in the energy industry as well as in engineering, banking and international business start-up.  Mr. Sweeney is a graduate of the United States Naval Academy and the Navy’s Supply Corps School.  He began his Naval service with pre-commissioning duty in Pascagoula, MS.  This was followed by service as the Assistant Supply Officer and Plankowner on the guided missile destroyer USS Milius, DDG69 and as the Supply Officer for Balboa Naval Hospital, San Diego. Mr. Sweeney lives in Sheridan, Wyoming and enjoys being outdoors with his family, which includes his wife and nine children.

John A. Clymer has served as a Governor since June 2014.  He is the financial advisor for Marvin Windows, based in Warroad, Minnesota. Mr. Clymer began his career in investments in 1972 at Minnesota Life Insurance Company and eventually was appointed president of the company in 1991. He then went on to be the Managing Director and President of Resource Capital Investors, a Minneapolis-based banking, trust, planning, and investment firm, in 1994. Mr. Clymer then became the Managing Director for the U.S. Trust Company, serving as senior investment advisor to individuals and families. He was also actively involved in the regional U.S. Trust Company offices in strategy, compliance investment offering, and oversight. Following that, Mr. Clymer served as a private consultant and financial advisor until 2008, when he joined Marvin Windows. He currently serves on the Board of Directors for several entities, including Marvin Companies, Trustmark Insurance Company, the Phipps foundation, and Presbyterian Homes and Services.

John A. Harju has served as a Governor since June 2014.  Mr. Harju is the Vice President for Strategic Partnerships at the Energy and Environmental Research Center located on the University of North Dakota campus, overseeing the activities of scientists and engineers focused on R&D, demonstration, and commercialization of energy and environmental technologies. Prior to his current position, Mr. Harju was a Senior Research Advisor at the EERC, Vice President of Crystal Solutions, LLC, a firm involved in commercial E&P produced water management, regulatory permitting and compliance, and environmental impact monitoring and analysis, as Principal Scientist in Produced Water Management for Gas Research Institute (now Gas Technology Institute) and as Program Team Leader for Soil, Water, and Waste. Mr. Harju is a graduate of the Geology program at UND. He serves on the U.S. Department of Energy’s Unconventional Resources Technology Advisory Committee (URTAC), which provides advice to the Secretary of Energy on the development and implementation of activities related to unconventional natural gas and other petroleum resources. Mr. Harju previously chaired the Interstate Oil and Gas Compact Commission (IOGCC) Energy Resources, Research, and Technology Committee and serves on IOGCC’s Carbon Capture and Geological Storage Task Force. In addition, he is a member of the National Petroleum Council and the Rocky Mountain Association of Geologists. He has authored and coauthored more than 100 professional publications.


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