We are Hillstone Environmental

The depth, strength, and flexibility to provide water management solutions now and in the future.

Who We Are

Hillstone Environmental is a company focused on water infrastructure solutions for the oil and gas industry. Water management is crucial to the economic success of completions and production over the life of a shale well. Our team is driven to get the most out of our clients’ operations, as our cost conscious and effective solutions are developed by our leading team of water experts.  Hillstone is able to plan, finance, execute, own and operate assets in an effective and efficient manner for our clients. We have designed our business with a stable, multi-year approach that reduces the effects of volatility in the oil and gas market and creates strong long-term performance and stability.

Hillstone is able to tackle any water management project in any shale basin for our clients. We specialize in fixed water pipelines, water recycling, water logistics, resource allocation, and optimizing delivery to and from multiple pools, pits and pads to reduce transport expense. Currently we operate in the Permian Basin, Williston Basin, and Marcellus / Utica play.  Hillstone is able to identify the most effective water strategies for our clients to drive efficiencies, reduce wasteful practices, eliminate inefficient processes and increase overall operational performance.

At Hillstone, what we do is plan, design, and build water pipeline and treatment systems that are backed by state of the art safety and operational tools to ensure maximum efficiency from completion and production operations. Our history and expertise equip us to provide water management services that deliver the most cost effective solution for every situation.



Northeast 2015 Oil & Gas Awards

New Technology Development of the Year

3000000+Barrels Transported via Pipeline in TX and ND
16000000+Barrels Treated in WV, OH, and TX
75000000+Barrels Filtered in WV, OH, and TX
500000+Hours Without LTI


Water Pipelines

Hillstone designs, owns and operates produced and flowback water pipeline systems. Our systems include 24/7 SCADA monitoring and leak detection. We have an exclusive partnership with an oil and gas water infrastructure engineering firm and have together permitted, designed, and installed over 1,000 miles of water pipelines.

Water Treatment

With more than 16 million barrels treated within the West Virginia, Ohio, and Texas areas and more than 75 million barrels of filtered water, Hillstone is proficient and experienced in the treatment sector.


Hillstone has over 250 wells worth of experience and has managed water operations for numerous companies. We work side-by-side with companies to help reduce billing, increase efficiency, and dispatch trucks and manage trucking logistics.

Waste Services

Hillstone provides evaluations of existing programs, identifying areas for improvement. We implement process modifications to minimize waste volume, and we sample, characterize, and profile waste streams into proper facilities.

Technical Support

Hillstone offers a Mobile Laboratory solution, source water investigations to screen and qualify potential water sources, treatability studies, contract research, and process QA/QC to document the quality of your vendors’ processes.


ShaleApps™ is a real-time water tracking & accounting software suite designed to address the challenges of oilfield trucking, including inefficiencies in billing and tracking caused by paper ticket processes. ShaleApps’ novel approach is based on mobile technology that helps automate the tracking of trucks and water types, enabling more cost-effective decisions regarding fluid movement and leading to lower trucking costs as well as more accurate billing, accounting, and regulatory reporting.

Our Team

We are what we repeatedly do. Excellence then, is not an act, but a habit.

– Aristotle

Jay Parkinson

Jay Parkinson


Jay is responsible for leading, directing, and executing Hillstone’s strategy and growth initiatives. Prior to joining Hillstone, Jay was an Operating Executive with Golden Gate Capital focused on investment opportunities in the Energy Services, Infrastructure and Exploration and Production segments. He previously served as Executive Vice President and Chief Financial Officer of Nuverra Environmental Solutions, a company focused primarily on providing full-cycle environmental, waste management and recycling solutions to the upstream energy sector. Prior to joining Nuverra, Jay was a Managing Director in the Energy Investment Banking group at Jefferies and Company, where he focused on upstream unconventional oil and gas. While at Jefferies he advised on a number of mergers & acquisitions, joint ventures and financing transactions in the energy sector. Jay holds an M.B.A. from Tulane University’s A.B. Freeman School of Business, an M.S. from the London School of Economics, and a B.A. from Georgetown University.

John Rivers

John Rivers

Co-Founder and Vice President of Pipeline Business Development

John leads Hillstone’s pipeline business development efforts. He has over 30 years of experience in energy and industrial markets and has developed numerous freshwater, produced water, and waste management systems for the oil and gas industry. Mr. Rivers previously served as Director of Business Development at Nuverra Environmental Solutions and AE2S Water Solutions.

C.B. Lackey

C.B. Lackey

Chief Operating Officer

C.B. is responsible for overseeing Hillstone’s operations, project design, cost and construction management, and safety management and practices. He brings to Hillstone over 40 years of experience in the energy industry, including nearly 35 years with EOG Resources. He held positions of increasing responsibility at EOG, finishing up his career at EOG managing all water handling operations in EOG’s Denver Division, which included the Williston, Powder River, and DJ basins. C.B. began his career with Halliburton in Texas. He holds a B.S. in Mechanical Engineering from the University of Kansas.

Daniel Huang

Daniel Huang

Vice President and Chief Financial Officer

Daniel is responsible for all finance and accounting related functions of the Company. He previously served as the Vice President of Finance at Nuverra Environmental Solutions and was responsible for mergers and acquisitions, financial planning and analysis, and financing and treasury functions. Before joining Nuverra, he was an investment professional at H.I.G. Capital, focused on the firm’s debt/equity, special situations and corporate lending strategies. Prior to that he worked at the D. E. Shaw group and Jefferies & Company’s Energy Investment Banking group. Daniel received his B.S. degree in Mathematics, B.A. degree in Economics and B.B.A. degree from the University of Texas at Austin.

Sean D. Hawkins

Sean D. Hawkins

Vice President and Chief Legal Officer

Sean is responsible for all legal and related functions of Hillstone. Prior to joining Hillstone, Sean served as Vice President, Deputy General Counsel and Assistant Corporate Secretary of Nuverra Environmental Solutions, Inc., where he oversaw all legal issues relating to operations, including managing Nuverra’s customer contracts and litigation.

Prior to joining Nuverra, Sean was an attorney with Thompson & Knight LLP in the firm’s Dallas, Texas office, where he practiced in the areas of finance and commercial real estate, focusing on complex loan transactions throughout the United States. Prior to practicing with Thompson & Knight, Sean was an attorney with Vinson & Elkins LLP in the firm’s Dallas, Texas office.

Sean received his Bachelor of Science degree in Psychology from Brigham Young University. Sean received his Juris Doctorate from the University of Pennsylvania Law School and a Certificate in Study of Business and Public Policy from the Wharton School, University of Pennsylvania.

Eric Johnson

Eric Johnson

Vice President of Corporate Development

Eric is responsible for all M&A and corporate development activities of the company. He previously served for 9 years as a Director at Silver Lake Partners and was responsible for all traditional and technology related energy investments across the firm. Before joining Silver Lake Partners, he was a Senior Managing Director at Bear, Stearns & Co focusing on Energy in the Distressed/High Yield group. Eric received his B.A. degree in Economics and MBA from the University of Southern California.

Paul Donavan

Paul Donavan

Vice President of Engineering

Paul is responsible for overseeing engineering and project management at Hillstone. He has over 15 years of experience in the energy industry ranging from integrated super-majors to startups. He previously served as Executive Vice President Engineering and founding member at First River Energy responsible for engineering, project management, and HSE. Before First River Energy, Paul was a senior facility engineer at EOG Resources responsible for pipeline infrastructure, produced water gathering, SWDs, and production facilities for various shale basins including the DJ, Bakken, and Powder River. Prior to that, he worked for ExxonMobil in various roles and locations ranging from global technical advisor, project engineer on deep water offshore projects, subsea operations and integrity, and FEED studies. Paul holds a B.S. in Mechanical Engineering from the University of Michigan.

Tony Gutta

Tony Gutta

President, Northeast & Permian Divisions

Tony is responsible for the daily operations of Hillstone’s Northeast Division, including water treatment units in the Marcellus and Utica shales that have total treatment capacity of ~30,000 bwpd. Tony has over 60+ personnel reporting to him and manages all logistics operations for Hillstone’s Northeast operations. He is intimately involved with all planning operations and in the development and construction of treatment equipment. Tony has significant commercial waste water treatment experience and has supervised commercial and residential waste water treatment plant installations. Additionally, Tony has over 5 years of experience generating and submitting NPDES permits for approval to governmental authorities.

Vincent Lopez

Vincent Lopez


Vincent is responsible for overseeing accounting, financial reporting and administrative functions at Hillstone. He previously served as Vice President of Administration at Shalewater Solutions, which merged with Hillstone in January 2016. While with Shalewater, he held positions of increasing responsibility, which included directing all administrative and finance and accounting functions of the company. Prior to Shalewater, he served as Finance Officer for a government agency and had experience in the public accounting field including assurance, accounting and organizational consulting, and tax services. He holds a B.S.B.A with a concentration in Accounting from West Virginia University.

David Donkin

David Donkin

Director, Technical & Project Development

Dave Donkin is responsible for evaluating and integrating all applicable treatment technologies associated with Oil & Gas residual materials management, including flowback wastewater, production wastewater, solid waste, sludge and drilling muds. By streamlining and optimizing efficiency in mobile facilities and centralized fixed treatment systems, Dave seeks to maximize profitability and create new revenue streams to promote.

Dave has over 25 years of experience in the industrial wastewater and oil & gas markets, developing detailed system designs and integrating mechanical and chemical solutions to promote to a wide variety of industries. Dave’s previous employers include USFilter Corporation, Siemens Water Technologies, and Plymouth Technology.

Ryan Hall

Ryan Hall

Technical Director

Ryan is responsible for technical consulting services and both internal as well as external quality assurance programs. He works closely with project stakeholders to solve problems through the application of oilfield technology and best practices. His core strengths include treatability testing, system modeling and chemical characterization. Ryan started his career as a contract environmental scientist with the Alyeska Pipeline service company. He later went on to work in multiple roles within TestAmerica including Customer Service Manager for Oil and Gas. He also served as the Energy and Analytical Business Unit Coordinator for the RJ Lee Group, a forensic laboratory and consulting firm. Ryan has a BS and MS in Environmental Management. He has given numerous presentations and worked with the TVA to develop a novel analytical method to demonstrate remedial compliance.

Our StrategyCombining management expertise, in-house technology, stable and flexible capital support and a long-term investment horizon to provide customers with industry-leading comprehensive water infrastructure solutions.

Hillstone has a fully integrated water midstream solution, allowing us to maximize operating efficiency, reduce costs, and reduce environmental footprint for our customers.  This solution includes water transportation via pipeline, water treatment for re-use, as well as water disposal services.  Hillstone’s unique and proprietary ShaleApps software and pipeline monitoring solutions allow customers to seamlessly manage this end-to-end value chain electronically and in real-time to maximize efficiency, accountability, and safety. 

Hillstone is focused on both developing greenfield projects for customers, including owning and operating infrastructure assets, as well as monetizing existing water infrastructure assets that E&P companies own and which may be non-core to their strategy.  When acquiring such assets, Hillstone endeavors to enter into long-term partnerships with E&P users, and takes a long-term investment horizon.


Hillstone Environmental

Industry-leading water management solutions