Who We Are

Flatirons Field Services LLC is a privately owned energy company providing full spectrum midstream services and oilfield chemical supply services. Flatirons specializes in greenfield project development in the Rockies including North Dakota, Wyoming and Colorado. Our company is led by a respected and successful management team with over 100 years of industry experience.  The Flatirons team provides cost effective, reliable, innovative solutions that result in significant value creation for its customers.

Flatirons investor group and management team includes Brion Wise and Bill Sanderson, two of the founders of Western Gas Resources Inc., and several senior executives of the former Western Gas who led the company’s successful growth spanning three decades. The management team has been directly responsible for the operation of more than 3 BCF/d of gathering, treating and processing facilities, construction and operation of over 1.2 million horsepower of natural gas compression, and over 10,000 miles of natural gas gathering and transmission pipeline facilities.

What We Do

Flatirons has extensive experience and expertise in all areas of the midstream energy and oilfield chemical businesses, including:

  • Natural Gas and Crude Oil Gathering and Transportation
  • Compression, Treating, Processing and Fractionation
  • Gas Lift Services
  • Water Treatment and Frac Chemical Supplies
  • NGL & Natural Gas Marketing
  • Liquids Storage and Handling

Flatirons works with its customers to develop creative and efficient solutions. We are committed to our customers through the entire lifecycle of a well.


Flatirons is supported by private equity capital from a team of partners led by Brion Wise, Bill Sanderson and Ed Aabak. The investor team brings a track record of remarkable success in the energy industry, including the formation, management and growth of Western Gas Resources Inc. into a large-cap energy company that was sold in 2006 for $5.3 billion. Flatirons prides itself on having owners with decades of experience, people who combine investment acumen with engineering, operational and business expertise.  In an industry with increasing change and consolidation, our company provides refreshing familiarity starting with our industry veteran owners.


The Flatirons management team provides an experienced and effective blend of industry knowledge, engineering, operations, technical expertise and financial sophistication. With over 100 years of experience in the oil and gas industry, we understand the needs of our customers and respond with flexible and creative solutions. 

Senior Management

Brion Wise – Principal

Brion Wise has more than 40 years experience in the oil & gas industry. He founded Ecological Engineering Systems in 1971, which would later become Western Gas Processors in 1977 and then finally Western Gas Resources (“WGR”). He served as Chief Executive Officer from December 1986 to October 1999, and as Chairman and President from July 1987 to May 2003 and from 1971 to 1986 respectively.

After earning a degree in chemical engineering from Washington State University in 1967, Mr. Wise went to work for Shell Oil Co. as a gas processing engineer in its natural gas development group. He left Shell in 1971 to start Ecological Engineering Systems, the predecessor to Western Gas Resources.

Prior to its acquisition by Anadarko Petroleum in 2006, Western Gas Resources operated as an independent gatherer, processor, transporter, and marketer of natural gas and natural gas liquids. It was headquartered in Denver, Colorado, centrally located near its 18 gas gathering and processing operations in the gas-producing basins of the Rocky Mountains, mid-Continent, Southwest, and Gulf Coast regions. WGR operated over 8000 miles of pipeline, and marketed natural gas and natural gas liquids, ranking it the 14th largest producer of these products in the United States.

Upon retirement from Western Gas, Mr. Wise relocated to Sonoma, California to develop and oversee his vineyard and wine-making enterprise, B. Wise Vineyards.

Mr. Wise is associated with a number of other companies as a member of the Board of Directors.


Bill Sanderson – Principal

Bill Sanderson has more than 50 years experience in the oil & gas industry. After earning a degree with honors from Texas Tech University in 1960, Mr. Sanderson went to work for Shell Oil Company in Midland, TX as a process engineer in Shell’s Gas Department. From there, he moved to Venezuela in 1965 and worked for the company in gas utilization. In 1968, he moved to Shell’s office in New Orleans. He moved to London in 1974 to work in Shell’s North Sea oil and gas development for 5 years, eventually settling back in the New Orleans office afterwards.

Mr. Sanderson left Shell in 1981 to join Brion Wise in Denver. He was a co-founder of Western Gas Resources in 1989, serving as President. He led the initial public offering of WGR in 1989. Mr. Sanderson retired in 1996, but stayed on the board of directors until WGR was sold to Anadarko in 2006.

WGR was a major operator in the midstream sector with 18 processing plants and over 8,000 miles of pipelines. WGR was an early developer of coal seam gas in the Powder River Basin and drilled the discovery well for the giant, 10 Tcf Jonah Field in Western Wyoming.

In 1996, Mr. Sanderson moved to Sonoma where he planted a small vineyard and built a winery called Madrone Ridge. He has an interest in three other private companies that drill and develop oil and gas. He was named a Distinguished Engineer by Texas Tech in 1998.


Ed Aabak – Managing Director

Edward Aabak has 40 years of experience in both the Canadian and US oil and gas industry. He has served on the boards of both Canadian and US companies and held executive positions in different publicly traded corporations. He joined Western Gas Resources in 1993 as a Manager and was promoted to Officer in 1995. He was an Executive Vice President with Western Gas Resources from 2001 to 2006 when the company was sold to Anadarko.

Prior to joining Western Mr Aabak worked for 18 years in the exploration and production segment of the oil and gas industry for various companies. He served as Vice President Operations and Marketing with Dekalb Petroleum from 1988 through 1992.

Ed has a Chemical Engineering degree from the University of Alberta

Mr Aabak is currently serving on the boards of several privately held corporations.


Nicholas Noppinger – Director of Corporate Development

Mr. Noppinger is Director of Corporate Development.  Prior to joining Flatirons Field Services, Mr. Noppinger was Director of Corporate Development and Investor Relations at American Midstream Partners. Prior to American Midstream, Mr. Noppinger worked in various positions in energy finance, including Sandell Asset Management, a multi-strategy investment fund, and Riverstone Holdings, an energy-focused private equity fund.  Mr. Noppinger began his career at Citigroup in the Global Energy Investment Banking Group, focusing on M&A transactions and capital markets financing.

Mr. Noppinger holds a B.A. in Economics from the University of Virginia and is a member of Phi Beta Kappa.


Corporate Team

Eric Hammond – Senior Project Engineer

Mr. Hammond is Senior Project Engineer.  His professional career started in Reservoir Stimulation with Schlumberger in Siberia, Russia in 2004.  He has since worked in the energy sector entirely; ranging from air permitting with CH2M HILL to process engineering with Washington Group International.  His most recent position was with Gas Compressor Consultants, Inc. where he progressed from Associate Engineer to Principal Engineer.

Mr. Hammond received his B.S. Chemical Engineering from Montana State University – Bozeman


Jon Hippe – Spring Brook Complex Supervisor

Mr. Hippe graduated from Valley City State University with a bachelor’s degree in Chemistry, and later received another bachelor’s degree in Power Plant Technology from Bismarck State College. His professional career started in operations at a Montana Dakota Utilities (MDU) coal fired power plant for 3 years before returning home to the Bakken Oil Field. He then made the move over to the natural gas processing business with Oneok Partners as an operator. While working at Oneok Partners he was promoted to plant manager of a 200 MM/D natural gas processing facility. While in this role he held increasing levels of responsibility including managing the annual operating budget.


Rodolfo Hill – Controller

Mr. Hill is Manager of Accounting and Treasury.  Prior to joining Flatirons Field Services, Mr. Hill was the Assistant Treasurer for Berry Petroleum Company. Prior to Berry Petroleum Company, Mr. Hill worked in various finance related positions, including a role as senior financial analyst at Dole Food Company.  Mr. Hill began his career at Deloitte, where he worked in both the auditing and tax functions.

Mr. Hill received a B.A. in Business Economics from the University of California-Santa Barbara and an M.B.A. from Duke University.  Additionally, Mr. Hill is a certified public account (C.P.A) and a certified treasury professional (C.T.P).


Heather Jercinovic- Supervisor of Accounting and Treasury

Ms. Jercinovic is the Accounting Analyst. Her professional career began in the auto industry, where she started in customer service and advanced to assistant service consultant. Ms. Jercinovic then worked in the construction industry as an office manager for a small business, and later partnered to open her own construction business.

Ms. Jercinovic received a B.S. with a double emphasis in Finance and Accounting from the University of Colorado at Denver.  Additionally, Ms. Jercinovic is a certified treasury professional (C.T.P.).


Jessica Kelleher- Commercial Business Development Manager

Ms. Kelleher is Manager of Commercial Business Development.  Prior to joining Flatirons Field Services, Ms. Kelleher was Manager of Commercial—Frontier Assets at DCP Midstream, working across Colorado’s DJ Basin and Wyoming’s Powder River Basin. Prior to DCP Midstream, Ms. Kelleher worked in various positions in energy and environmental policy, including the White House Council on Environmental Quality, The Wyss Foundation, and the United Nations Foundation.  Ms. Kelleher began her career at El Pomar Foundation as a Program Associate, focused on grant making across the state of Colorado.

Ms. Kelleher received a B.A. in Geology from the University of Colorado at Boulder and a M.S. in Geological and Environmental Sciences from Stanford University.


Klint Newer- Manager of Finance

Mr. Newer is Manager of Finance.  Prior to joining Flatirons Field Services, Mr. Newer worked with Chesapeake Energy and DCP Midstream in multiple finance roles, focusing on the Eagle Ford Shale in Texas as well as Colorado, Oklahoma, and Northern Michigan related assets. Prior to DCP Midstream, Mr. Newer worked in a variety of analytical roles in the GIS and transportation industries.
Mr. Newer received a B.S. in Chemistry from Northwestern State University and an M.B.A. in Finance from Xavier University.


Flatirons Chemicals

Brandon Wamsley

Mr. Wamsley has 12 years of construction experience with an extensive background in many facets of construction, including civil, residential, and commercial. Mr. Wamsley supervised crews performing multi-million dollar soil stabilization activities in the rapid growth in infrastructure at the expansion of CO Springs Airport, JeffCo Airport, and Fort Carson Army base.

Mr. Wamsley  has a reputation of environmental stewardship and customer satisfaction combined with a focused, high energy approach to water treatment and oil field chemical services.

Mr. Wamsley  has experience running his own business in the Denver area and as one of the original members of Flatirons Field Services, LLC, is eager to apply his entrepreneurial mindset in the development of what has become a rapidly growing organization.