Rod Pump Systems
API 11AX manufacturing
- Complete API 11AX insert and tubing pump portfolio
- In-house manufacturing under API Q1 quality system
- Custom designs for challenging reservoir conditions
- Repair and reconditioning services
About ELSI
Built in Romania. Connected to international operators.
Endurance Lift Solutions International is the Romanian subsidiary of Endurance Lift Solutions (USA) — the only API 11AX-licensed pump manufacturer in Central and Eastern Europe.
A local leader with international reach.
From our 3,500 m² Center of Excellence in Negoiești, Prahova County, we design, manufacture, and service rod-pump systems, PCPs, and downhole components for operators across Romania and beyond. Our integrated quality system is audited to API Q1, ISO 9001, ISO 14001, and ISO 45001. Since 2009, we've been the strategic partner of OMV Petrom — supporting thousands of wells nationwide through a responsive workshop network and in-house engineering expertise.
Founded in 2007, integrated into the Endurance Lift Solutions group in 2016, we now employ approximately 90–100 people across our headquarters and workshop network — combining local expertise with North American resources.
At a glance
- Founded
- 2007
- HQ
- Negoiești, Prahova
- Parent group
- Endurance Lift (USA)
- API Pump License
- 11AX-0125
API 11AXAPI Q1ISO 9001 · 14001 · 45001
3,500
m² Center of Excellence
90–100
Employees
$6M+
Strategic inventory
<6 h
Average field response
Our journey
From a local service provider to a regional leader.
Five moments that shaped the company — and set up the next decade.
- 2007
Founded as CDI Oilfield Services
Established as part of the CDI Energy Services group (Tyler, Texas) to provide pump assembly and repair services for the Romanian oil industry.
- 2009
OMV Petrom partnership begins
Won 3-year contract to supply pumps and services to OMV Petrom. Took over ~21 pump workshops and 300+ employees, modernizing them into centers of excellence serving 7,500+ wells. Pump run life extended from ~50 days to 700+ days through best practices.
- 2015
Center of Excellence opens
Inaugurated new 3,500 m² facility in DIBO Industrial Park, Negoiești — a state-of-the-art center for pump manufacturing, component storage, training and R&D.
- 2016
Integration into Endurance Lift Solutions
Acquired by Synergy Energy Holdings (Crestview Partners and B-29 Investments) and integrated into the Endurance Lift Solutions platform, adopting our current name.
- 2020Latest milestone
7-year framework contract secured
Awarded new OMV Petrom master contract (2021–2027) following a competitive tender, solidifying our long-term partnership for artificial lift solutions nationwide.
What we do
A complete artificial lift toolkit.
API-certified pumps and components, rapid field service, engineering optimization, and technical training — all integrated under one operational roof.
Sucker Rods & Components
Rapid-availability inventory
- Steel and fiberglass sucker rods (low corrosion, lightweight)
- Barrels, plungers, valves, seals and couplings
- Full range of API 11AX sizes and custom solutions
- Strategic buffer inventory for rapid delivery
Progressive Cavity Pumps
PCP systems for heavy oil
- Partnerships with major PCP OEMs for consignment stock
- Rapid availability for high-viscosity applications
- Engineering support for PCP well optimization
- Installation and commissioning assistance
Field Service & Optimization
~500 orders / month · <6h response
- ~500 orders per month, average response < 6 hours
- Preventive and corrective maintenance at dedicated workshops
- Upstream Interface monitoring for real-time well performance
- Rod string design and pump selection engineering support
Operations & Footprint
Nationwide in Romania, expanding internationally.
We serve onshore oil production across Romania and are replicating our model in the Middle East, Southeast Asia, and Central Europe.
RO
Romania — nationwide coverage
Our 13–14 workshop locations are strategically positioned near major oilfields throughout Romania, from Muntenia and Oltenia to Moldova and Transylvania.
- ~500 orders / monthprocessed across the workshop network
- 2.5–6 hoursaverage pump and parts delivery to wellsite
- Thousands of wellsactive service with OMV Petrom + independents
Our teams work daily alongside operator personnel in the field — immediate support, knowledge transfer, collaborative problem-solving.
INT
International expansion
Beyond Romania, we're replicating our model in emerging and established oil markets.
Middle East & Southeast Asia
Assembly and service centers under development in Oman and Indonesia.
Central & Eastern Europe
Testing and qualification completed in Serbia, Croatia, Hungary, and Germany. As the region's only API 11AX-licensed manufacturer, we respond quickly to European operators with local production and inventory.
OmanIndonesiaSerbiaCroatiaHungaryGermany
Partners & Customers
Embedded in our customers' operations.
We build long-term partnerships rooted in trust, performance, and collaborative success — not transactional supplier relationships.
Anchor partner · since 2009
OMV Petrom
Our current 7-year master contract (2021–2027) covers the full scope of artificial lift equipment and services across Romania's largest oil producer. We maintain buffer inventory directly in the field — pumps and parts “at the customer's disposal” — and our specialists collaborate daily with Petrom teams to optimize production and extend pump run life.
Master contract 2021–2027Field buffer inventoryDaily collaboration
Independent operators
Romanian producers
We support independent producers including Mazarine Energy and Expert Petroleum — companies operating mature fields across Romania. Same responsive service model: local workshops, rapid delivery, engineering optimization, and performance monitoring.
Mazarine EnergyExpert Petroleum
Our partnership model
We don't just supply equipment — we embed.
Our teams work side-by-side with operator staff in the field, bringing technical expertise, best practices, and immediate problem-solving. The result: pump run life extended from ~50 days to over 700 days, reduced downtime, and lower total cost of ownership.
Result
50days→700+days
Pump run life, extended
Performance, Quality & HSE
Credentials that hold up in the field.
Certifications are the starting line — operational performance and financial discipline are how we stay in business with the same partners for 15+ years.
Certifications
Audited quality across manufacturing, environment, and safety
- API 11AX-0125Monogram — pump manufacturing
- API Q1Quality management system
- ISO 9001:2015Quality systems
- ISO 14001:2015Environmental management
- ISO 45001Occupational health & safety
Operational performance
Rigorous QC, preventive maintenance, and field optimization
50days→700+days
Average pump run-life extension
Our $6M+ strategic inventory and <6-hour turnaround ensure minimal downtime and maximum production uptime for our partners.
Financial strength
Consistent performance, growing turnover, strong profitability
- ~22%Revenue growth (2021–2022)
- 20%+Net margins
- OngoingReinvestment in capacity & technology
Culture & Innovation
People and process — not just products.
We invest in training, safety, and R&D to stay at the forefront of artificial lift technology — and to make sure our customers get the best of that investment first.
Training & Development
Pump School
Our Pump School training programs bring best practices to life for both ELSI staff and customer teams. Sessions cover pump operation, maintenance techniques, troubleshooting, and HSE protocols — building a shared foundation of expertise across the industry.
Every technician and engineer undergoes comprehensive HSE training — reinforcing our culture of zero harm and operational discipline.
Pump operationMaintenanceTroubleshootingHSE protocols
R&D & Innovation
Engineering that iterates
Our in-house R&D team continuously explores new pump designs, materials, and service models. Recent initiatives:
- Custom pump designs — for challenging reservoirs — high temperature, corrosive fluids, high sand content
- Equipment rental programs — to help operators test marginal wells without upfront capital
- Digital monitoring — Upstream Interface for real-time well optimization
At ELSI, we combine local expertise with international resources — proven track record with continuous innovation. We're committed to supporting our partners' success — safely, efficiently, and reliably — for the long term.
Want to work with us — or for us?
Talk to our team about partnerships, engineering projects, or career opportunities.