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PWI logoProduced Water IntelligencerPWX INDEX$0.8043+2.49%
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Lenses: Same reporting. Specific focus.

PWX universe

The seven PWX companies

The launch basket is equal weighted at inception and each quarterly reset. Company names and logos open their PWI listings.

7 of 7 companiesListed by primary activity · Updated 2026-10-07

Broader public-company research

The original research universe is retained below as a historical screen and price snapshot. These companies are not all PWX constituents.

23 of 23 candidates
TickerCompanyPrimary segmentClosePW revenueSource
DKL

Delek Logistics Partners, LP

Midstream partnership with dedicated Permian water systems acquired to expand its produced water gathering and disposal offering.

Permian Basin

Gathering, Transfer & Storage$53.63Not disclosed
LIQT

LiqTech International, Inc.

Small membrane-filtration company commercializing silicon-carbide systems for produced water treatment and industrial water applications.

Treatment & Recovery$0.6001Not disclosed
NESR

National Energy Services Reunited Corp.

Middle East and North Africa oilfield-services company offering produced water treatment, reuse and mineral-impact solutions.

Treatment & Recovery$29.81Not disclosed
DD

DuPont de Nemours, Inc.

Diversified materials company supplying membranes, resins and separation technologies used in produced water treatment systems.

Treatment & Recovery$130.98Not disclosed
SLB

SLB

Global energy-technology company supplying separation, treatment and processing systems for produced water streams.

Vaca Muerta

Treatment & Recovery$51.49Not disclosed
EFXT

Enerflex Ltd.

Energy-infrastructure supplier with modular treatment systems and a legacy water-solutions business serving upstream and midstream customers.

Treatment & Recovery$23.63Not disclosed
CECO

CECO Environmental Corp.

Environmental-technology company supplying engineered oil-water separation, filtration and treatment equipment through Peerless Water.

Treatment & Recovery$72.26Not disclosed
XYL

Xylem Inc.

Global water-technology provider whose pumps, treatment systems and analytics can support produced water handling and reuse.

Treatment & Recovery$100.91Not disclosed
ECL

Ecolab Inc.

Large specialty-chemicals company providing treatment programs for produced water quality, asset integrity and disposal operations.

Chemistry$280.23Not disclosed
BKR

Baker Hughes Company

Global energy-technology company with chemical treatment and production-enhancement offerings used on produced water systems.

Vaca Muerta

Chemistry$57.12Not disclosed
IOSP

Innospec Inc.

Specialty-chemicals producer offering oilfield formulations designed to work with recycled and high-salinity produced water.

Chemistry$97.88Not disclosed
FTK

Flotek Industries, Inc.

Oilfield-chemistry and data company with formulations potentially used where operators recycle produced water for completions.

Chemistry$28.43Not disclosed
DNOW

DNOW Inc.

Energy and industrial distributor/integrator supplying the physical equipment used in water transfer, storage, pumping and disposal systems.

Pipe, Containment & Equipment$16.14Not disclosed
WHD

Cactus, Inc.

Oilfield-equipment company whose FlexSteel business supplies flexible pipe suited to corrosive water-transfer and gathering service.

Pipe, Containment & Equipment$64.24Not disclosed
FET

Forum Energy Technologies, Inc.

Oilfield-equipment manufacturer with fluid-handling hardware that can serve produced water transfer, treatment and disposal infrastructure.

Pipe, Containment & Equipment$82.99Not disclosed
FLS

Flowserve Corporation

Diversified flow-control manufacturer whose pumps and valves are used in produced water collection, treatment and injection systems.

Pipe, Containment & Equipment$74.09Not disclosed
NOV

NOV Inc.

Global energy-equipment company providing processing, separation, pipe and fluid-motion products relevant to produced water infrastructure.

Pipe, Containment & Equipment$19.50Not disclosed
FTI

TechnipFMC plc

Subsea and surface technology company with equipment capable of separating, routing and reinjecting water in offshore production systems.

Pipe, Containment & Equipment$70.62Not disclosed
EMR

Emerson Electric Co.

Automation and instrumentation supplier whose meters and analytics monitor produced water flow and water content in production systems.

Measurement & Automation$159.39Not disclosed
ROK

Rockwell Automation, Inc.

Industrial-automation company with oil-and-gas controls, instrumentation and monitoring used across produced water infrastructure.

Measurement & Automation$431.22Not disclosed
VLTO

Veralto Corporation

Water-analytics company whose instruments can measure produced water quality for treatment, discharge, reuse and process control.

Measurement & Automation$96.20Not disclosed
BMI

Badger Meter, Inc.

Flow-measurement and water-analytics company with metering technologies potentially used on produced water pipelines and facilities.

Measurement & Automation$126.53Not disclosed
TDY

Teledyne Technologies Incorporated

Diversified instrumentation company with sensing and analytical tools relevant to produced water quality and discharge monitoring.

Measurement & Automation$610.83Not disclosed