WOS

What WOS does

WOS (Well-Oil Services), legally WOS S.A.S, is an Argentine oilfield services company founded around 2020 and headquartered at the West Industrial Park in Neuquén, Argentina's principal oil and gas region adjacent to the Vaca Muerta unconventional basin. The company provides an integrated service offering centered on fracturing stack rental and operations, complemented by API-6A certified hydraulic testing in its own reinforced concrete testing bunker, valve maintenance and repair, field and base torque services, and high-pressure greasing services. Its target customers are oil and gas operators in Argentina, reached through direct enterprise field sales with quote-based contracts.

Name

WOS

Legal name

WOS S.A.S

Website

https://wos.net.ar

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

WOS (Well-Oil Services) is an Argentine oilfield services company that rents fracturing stack equipment, performs API-6A certified hydraulic testing, and provides valve maintenance, torque, and high-pressure greasing services to oil and gas operators in Neuquén.

Ownership category

akta.pro rank

Product category

Oilfield Services

NAICS

Oil and Gas Field Machinery and Equipment Manufacturing (333132), Mining and Oil and Gas Field Machinery Manufacturing (33313), Pump and Compressor Manufacturing (33391)

SIC

Oil & Gas Field Machinery & Equipment (3533), Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

Pressure Pumping & Stimulation (Hydraulic Fracturing, Acidizing) (EUALABAF)

akta.pro secondary industries

Oilfield Equipment Manufacturing & Supply (Wellheads, BOPs, Surface Equipment) (EUALABAL), Inspection, Integrity & Testing Services (NDT, Well Integrity, Corrosion, QA/QC) (EUALABAO)

Keywords

• Oilfield equipment rental
• Fracturing stack services
• Hydraulic pressure testing
• Valve maintenance repair
• Wellhead services

Headquarters

HQ city

Neuquen

HQ country

Argentina

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Infrastructure, Operations, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Equipment Rental: Rental of fracture stack equipment to oil and gas operators, including provision, operation and maintenance services
2. Maintenance and Repair Services: Maintenance, inspection and repair services for valves and equipment, with warranty coverage. Offered as point service contracts or under defined duration agreements.
3. Certified Hydraulic Testing: Hydraulic testing services performed in company's own certified bunker facility for valves and large equipment
4. Field Services: Field torque services and high-pressure greasing services performed at client sites

Go-to-market motion1 record

Distribution channels1 record

Core offering

WOS rents, operates, and maintains fracture stack equipment for oil and gas well fracturing operations, complemented by API-6A certified hydraulic testing, valve maintenance and repair, field/base torque services, and high-pressure greasing. The company targets oil and gas operators in Argentina's Neuquén basin with an integrated service model backed by personnel with more than 30 years of industry experience.

Product overview

WOS is an Argentine oil and gas services company offering fracturing stack rental and operation services. The product portfolio centers on the Stack de Fractura (Fracturing Stack) system, which includes multiple valve products (Válvula Esclusa series in 3-15 and 5-15 configurations with M and H variants), fracture head, reels, adapter reels, crosses, and pressure accumulators. The Stack de Fractura is configured with trunk valves, fracturing head, lateral valves, adapter flanges, and Weco-type unions in diameters from 3-1/16 to 5-1/8 inches and working pressures of 10,000 and 15,000 PSI. Supporting services include maintenance and repair of valves, certified hydraulic testing in their own bunker facility, field and base torque services, and high-pressure greasing systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Stack de Fractura (Fracturing Stack Rental and Operation) Rental and operation services for fracture stacks configured with API 6A gate valves, fracturing heads, reels, adapter reels, spudded crosses, and pressure accumulators for oil and gas well fracturing operations at 10,000 and 15,000 PSI working pressure, with manual or remote hydraulic actuator control.
• Mantenimiento (Valve Maintenance, Inspection and Repair) Maintenance, inspection, and repair services for valves and wellsite equipment, with warranty coverage to maximize performance and extend equipment service life; offered as point services or under defined duration agreements.
• Certificaciones (Certified Hydraulic Testing) Hydraulic pressure testing with certification performed in the company's own API-6A compliant testing bunker, generating test pressure records and reports for large valves and equipment, designed per API-6A test sequences.
• Servicios Adicionales (Field and Base Torque Service) Hydraulic torque adjustment service for bolts and connections at field or base locations, powered by pneumatic or electric motors and using low-profile wrenches to reach confined and inaccessible spaces, with safety, time, and cost savings for the operator.
• Sistema de Engrase de Alta Presión (High-Pressure Greasing System) High-pressure lubrication service using a skid-mounted pressure multiplier system with a 200-liter reserve tank that reaches hydraulic pressures up to 15,000 PSI, with advanced design minimizing wear of moving parts and delivering high reliability and efficiency.

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Weatherford International: Global OFS provider of wellhead equipment, valves, and pressure pumping services. Competes with WOS in API 6A gate valves, frac heads, and integrated well-completion equipment, with established operations in Argentina.
• National Oilwell Varco (NOV): Global manufacturer of oilfield equipment including wellheads, frac stacks, and pressure pumping components. Competes with WOS in supplying high-pressure API 6A equipment to operators and service companies active in Vaca Muerta.
• Halliburton: Global leader in pressure pumping and stimulation services with Argentine operations serving Vaca Muerta. Competes with WOS at the high end of the frac stack and wellhead equipment market, offering much larger fleet scale and integrated completion services.
• SLB (Schlumberger): Largest global oilfield services company with significant Argentine footprint. Provides pressure pumping, wellhead equipment (formerly Cameron), and testing/integrity services that overlap directly with WOS's fracture stack and API-6A certification offerings.

Emerging players

• Core Laboratories: Global provider of reservoir and production testing/analysis services with Argentine operations. Comparable to WOS in the testing-and-integrity niche, though focused on subsurface and production diagnostics rather than frac equipment testing.

Direct peers

• Trican Well Service: Pressure pumping and stimulation services company with international operations. Direct comparable to WOS in fracture stack rental and well-completion pressure services, though with larger fleet scale.
• Calfrac Well Services: Canada-based pressure pumping specialist with Argentine operations servicing Vaca Muerta. Most direct peer to WOS in the fracturing stack rental and operations business, focused on the same high-pressure stimulation activity.
• San Antonio Internacional: Argentine oilfield services company providing wellheads, frac stacks, valves, and completion equipment across Neuquén. Operates in the same domestic niche as WOS with overlapping product lines (API 6A valves, fracturing equipment) for the same Argentine operator base.

Regional players

• TGS S.A. (Argentina): Argentine oilfield services company providing equipment and well services to operators in Neuquén. Regional comparable to WOS in serving the same domestic customer base with adjacent well-completion offerings.
• Tenaris: Argentine-headquartered global manufacturer of steel pipes and oilfield equipment. While focused on tubular products, Tenaris is a regional industrial peer serving the same Argentine operators as WOS and could expand into adjacent completion equipment.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/WellOilService1
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/wos-sas

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about WOS