Crosco

What Crosco does

Crosco, Integrated Drilling & Well Services Co., Ltd., is an onshore and offshore oilfield services contractor headquartered in Zagreb, Croatia, and a wholly-owned subsidiary of INA Group, Croatia's largest oil and gas company. The company was formed as a separate legal entity on December 17, 1996, with operational roots tracing back to 1932. Crosco operates an owned fleet consisting of 4 drilling rigs (EMSCO 605, R-67, IDECO 301, NATIONAL 402), 7–8 workover rigs (Cardwell, IRI-Franks, National), one jack-up platform (Labin), and additional rigs via its Hungarian subsidiary Rotary Drilling Co. Ltd. (acquired 2007). Service lines are organized into three core categories — Drilling Services, Workover Services, and Well Services — with the latter encompassing well testing, well logging, cementing and stimulation, coil tubing, nitrogen, directional drilling with MWD/LWD, coring, H2S protection, mud services, fishing, and tubular running. The company holds the European record for the deepest offshore well (7,305m, Amanda in Italian waters, 1978) and has cumulatively drilled over 4,000 wells totaling more than 6,300,000m since 1932.

Crosco's commercial model is B2B enterprise contract-based, with revenue generated through long-term day-rate or per-well contracts with international and national oil companies (IOCs and NOCs) and independent operators. Pricing is not publicly disclosed, and services are delivered through direct field deployment of owned equipment at client sites. The company maintains continuous ISO 9001, ISO 14001, ISO 45001, and ISO 50001 certifications (Bureau Veritas), IWCF membership, and an in-house IWCF-accredited Training Center. Internal operations are supported by an SAP R/3 enterprise system and a Galiot computerized maintenance management system. Geographic footprint spans 27+ countries historically, with current active operations concentrated in Croatia and Hungary; notable historical or recent engagements include INA (Croatia, since 1996), PJSC Ukrgasvydobuvannya (Ukraine, since 2017), PDO (Oman, 1999–2016), Bankers Petroleum (Albania, since 2009), ENI/Mellitah (Libya), TOTAL (Libya), PEMEX (Mexico, 2008–2009), and KALEGRAN (Iraq-Kurdistan, 2011–2016). Crosco also holds joint venture interests in Noble CROSCO Drilling Ltd. (with Noble Drilling Corporation, 2000) and Mideast Integrated Drilling & Well Services Company LLC / Midwesco (Oman, 1999).

The company's go-to-market motion is enterprise field sales — direct contractual engagement with major oil and gas operators — supported by a 501–1,000 employee base of which over 95% hold engineering or technical qualifications, and a legal entity presence across Croatia, Albania, Egypt, Hungary, Ukraine, Netherlands, and Mexico. Subsidiary entities include CROSCO B.V. (Netherlands), CROSCO UKRAINE LLC, CROSCO S.A. de C.V. (Mexico), and the wholly-owned Hungarian subsidiary Rotary Drilling Co. Ltd. Crosco has no public listing, no disclosed external funding, and is fully consolidated within INA Group, with subsidiary-level leadership currently in interim transition (Josip Vargašević appointed Acting Company Director for February 1 – April 30, 2026 while continuing as CFO).

Name

Crosco

Legal name

CROSCO, Integrated Drilling & Well Services Co., Ltd.

Website

https://crosco.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Crosco is an integrated onshore and offshore drilling and well services contractor headquartered in Zagreb, Croatia, operating an owned fleet of drilling rigs, workover rigs, and a jack-up platform. A wholly-owned subsidiary of INA Group, the company serves international and national oil companies across Europe, the Middle East, and Africa.

Ownership category

akta.pro rank

Headquarters

HQ city

Zagreb

HQ country

Croatia

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Integrated Drilling Services: Contract-based integrated drilling services provided on a per-project basis using CROSCO's own fleet of drilling rigs, workover rigs, and jack-up platform. Revenue is generated through long-term service contracts with international and national oil and gas companies, billed on a per-well or day-rate basis.
2. Well Services (Individual): Individual well services including wireline logging, well testing, coil tubing, nitrogen, cementing, stimulation, mud, coring, H2S, fishing, directional drilling, tubular running, and downhole tool services provided as standalone services to operators.
3. Engineering and Maintenance Services: Engineering design, well design, equipment maintenance, hydrogeological and geomechanical services for oil and gas industry.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

CROSCO provides integrated onshore and offshore drilling, workover, and well services to international and national oil and gas operators using its owned fleet of drilling rigs, workover rigs, and the Labin jack-up platform. Services include well testing, well logging, cementing, stimulation, coil tubing, nitrogen, H2S protection, directional drilling with MWD/LWD, mud services, coring, fishing, and tubular running. The company also offers IWCF-certified well control training through its in-house training center.

Product overview

CROSCO is an integrated onshore and offshore drilling and well services contractor providing a comprehensive suite of oilfield services. The company operates a fleet of drilling rigs (including jack-up rigs) and workover rigs, supplemented by extensive well services including well testing, well logging, cementing and stimulation, coil tubing, nitrogen, directional drilling, coring, H2S services, mud services, fishing, and tubular running. The company is organized around three core service lines (Drilling Services, Workover Services, and Well Services) supported by specialized equipment and personnel. CROSCO also owns 100% of Hungarian subsidiary Rotary Drilling Co. Ltd. The company uses SAP R/3 as its internal management information system and provides IWCF-certified well control training through its Training Center. Services span 34 countries with current active operations in Croatia and Hungary.

Differentiator

Problem solved

Functional benefit

Products and services

• Drilling Services Onshore and offshore drilling operations performed using CROSCO's own fleet of drilling rigs and the Labin jack-up platform. Maximum drilling capacity up to 6,000 m depending on rig, with European record of 7,305 m (deepest offshore well in Europe).
• Workover Services Workover services performed using CROSCO's own fleet of self-propelled and truck-mounted workover rigs (Cardwell, IRI-Franks, National) with capacity ranging from 40-100 tonnes, suitable for wells up to 4,000 m depth.
• Well Services Comprehensive well services including well testing, well logging, cementing, stimulation, coil tubing, nitrogen, H2S services, fishing, directional drilling, coring, mud services, tubular running, and well control equipment services performed onshore and offshore.
• Well Testing Services Comprehensive well testing services using wireline units, separators, indirect heaters, surge tanks, and auxiliary equipment capable of operating in extreme conditions with pressures up to 1,100 bar and temperatures up to 235°C.
• Well Logging Services Well logging services performed with computerized mobile and skid units, providing open hole, cased hole, production logging, explosive services, and bore hole seismic services. Equipment rated up to 7,000 m depth and 177°C temperature.
• Cementing and Stimulation Services Well cementing, acidizing, fracturing, and sand control services provided onshore and offshore using 15 pumping units with pressures up to 784 bar and flow rates up to 1,750 l/min per pump. Includes fully equipped lab facilities for testing cement slurries, acids, and stimulation fluids.
• Coil Tubing and Nitrogen Services Coil tubing services provided onshore and offshore with trailer or skid mounted units using tubing sizes from 25.4 mm to 38.1 mm. Nitrogen services use automated units and offshore skids for well applications and pipeline/tank inerting.
• Directional Drilling Service Directional drilling services for demanding well trajectories from basic deviation to horizontal wells using adjustable downhole mud motors and MWD/LWD equipment. Over 1,450 directional wells drilled.
• Coring Service
• H2S Service
• Mud Service
• Fishing Service
• Tubular Running Service Tubular handling, preparation, inspection, and wellsite installation services using hydraulic power tongs for tubing (2 3/8 - 5 1/2) and casing (5 1/2 - 20) strings with computerized torque monitoring.
• Geoservices
• Rotary Drilling Co. Ltd. Services
• IWCF Well Control Training IWCF-certified Well Control training courses and seminars provided through CROSCO's in-house Training Center and Assessment Center for employees and external personnel.

Quantifiable outcome

• Drilled over 4,000 wells totaling over 6,300,000 m since 1932
• +5 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Rotary Drilling Co. Ltd.coreStrategic or Co-development Partner · 1 January 2007CROSCO acquired 100% ownership of Hungarian drilling and well services company Rotary Drilling Co. Ltd. in 2007, adding 3 drilling rigs to its fleet and expanding operations in Hungary and Central Europe.
• Noble Crosco Drilling Ltd.minorStrategic or Co-development Partner · 1 January 2000Joint venture company established in 2000 between CROSCO and Noble Asset Co. Ltd. (subsidiary of Noble Drilling Corporation) in equal partnership. Provided drilling services using Noble's jack-up rig assets combined with CROSCO's operational expertise.
• Mideast Integrated Drilling & Well Services Company LLC (Midwesco)minorStrategic or Co-development Partner · 1 January 1999Joint venture company formed in 1999 with Riyam Engineering Ltd. to provide workover, wireline (slickline), pumping, drilling and coil tubing services in Oman. Later expanded to serve Middle East regional markets.

Scale indicators8 records

Recent moves12 records

Expansion highlights4 records

Broad incumbents

• Halliburton: Global oilfield services major providing cementing, stimulation, directional drilling (MWD/LWD), and well logging — overlapping directly with Crosco's well services portfolio.
• Noble Corporation: Global offshore drilling contractor (post-Maersk Drilling merger) with a much larger jack-up and floater fleet; competes with Crosco in jack-up tenders and historically partnered via Noble CROSCO Drilling Ltd. JV.
• Saipem: Integrated oilfield services, drilling, and engineering major; competes for the same IOC integrated drilling and workover tenders in the Mediterranean, North Africa, and Middle East.
• Transocean: Largest global offshore drilling contractor; sets pricing benchmarks and prequalification standards that Crosco must meet to win deepwater and HPHT Mediterranean work.
• SLB (Schlumberger): World's largest oilfield services company; competes with Crosco across drilling, logging, cementing, and integrated project management; historically associated via Western Atlas (now SLB) logging agreement.

Direct peers

• KCA Deutag: Europe-headquartered integrated drilling and workover contractor with owned land rigs, offshore platform operations, and similar IOC/NOC client base. Closest direct comparable to Crosco in size, regional orientation, and service mix.
• Shelf Drilling: Mid-sized pure-play jack-up drilling contractor with a fleet of similar scale to Crosco's offshore operations; competes for the same shallow-water and Mediterranean tenders.
• Stena Drilling: Owner-operator of harsh-environment and deepwater drilling units, including jack-ups; competes with Crosco's jack-up Labin for European and Mediterranean contracts.
• Archer Limited: Oilfield services contractor offering drilling, workover, and well services globally; comparable integrated service model and similar contract-based revenue mix.
• ADES International Holding: Egypt- and Middle East-focused onshore and offshore drilling contractor; comparable fleet size, regional orientation, and NOC client base to Crosco's MENA activities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/crosco-integrated-drilling-&-well-services-co-ltd

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries6 records

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 Crosco