Wintershall Dea AG

What Wintershall Dea AG does

Wintershall Dea GmbH is a German upstream oil and gas company historically engaged in the exploration, development, and production of hydrocarbon resources across multiple international basins. Its operating geographies spanned Norway, the United Kingdom, and the United States, with the company's upstream assets producing on the order of hundreds of thousands of barrels of oil equivalent per day at scale prior to its 2025 divestiture. The underlying business model was B2B commodity sales — crude oil and natural gas sold into global commodity markets and directly to refineries and gas processors at enterprise scale, with pricing governed by prevailing energy market benchmarks rather than disclosed tariffs.

The company traces its origins to 1896 as a potash enterprise and was reconstituted in its modern upstream form through the 2017–2019 combination of Wintershall and DEA Deutsche Erdoel, which merged to create the Wintershall Dea platform in 2019. Following the merger, Wintershall Dea operated as a major European independent E&P with a multi-geography portfolio, an employee base in the 1,001–5,000 range, and senior leadership including a CEO and Chairman (Mario Mehren), COO (Dawn Summers), CTO (Hugo Dijkgraaf), and Chief Production Engineer (Aurelian Serban).

In 2025, Harbour Energy completed the acquisition of Wintershall Dea's upstream assets for approximately £9 billion, transferring the company's principal production base (integrated by Harbour Energy to record 474,000 boe/day, an 80% year-over-year increase) into a new corporate parent. Following this transaction, the remaining Wintershall Dea GmbH operates as a residual entity under Harbour Energy ownership, with its public-facing website emphasising corporate governance, compliance, supply chain oversight, and historical accountability rather than active upstream operations. The legal entity continues to exist; the underlying upstream business does not.

Name

Wintershall Dea AG

Legal name

Wintershall Dea GmbH

Website

https://wintershalldea.com

Company type

Private

Founded year

1896

Operating status

Acquired

Headcount range

1,001–5,000 employees

Short description

Wintershall Dea GmbH is a German upstream oil and gas exploration and production company whose core hydrocarbon assets were divested to Harbour Energy in 2025 for £9 billion. The residual entity operates under Harbour Energy ownership with a focus on corporate governance, compliance, supply chain oversight, and historical accountability rather than active upstream operations.

Ownership category

akta.pro rank

Product category

Upstream Oil and Gas Exploration and Production

NAICS

Oil and Gas Extraction (211), Natural Gas Extraction (21113), Crude Petroleum Extraction (211120)

SIC

Crude Petroleum & Natural Gas (1311), Oil & Gas Field Exploration Services (1382), Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

Upstream HSE, Regulatory Compliance & Emissions Management (Methane/Flare) (EUALAAAM)

akta.pro secondary industries

Gas Processing & NGL Recovery (Dehydration, Sweetening, Cryogenic Recovery) (EUALAGAG), Production Services & Artificial Lift (ESP, Rod Lift, Gas Lift, Chemicals) (EUALABAH)

Keywords

• Oil and gas exploration
• Upstream production services
• Hydrocarbon extraction operations
• Natural gas production
• Crude oil development

Headquarters

HQ city

Kassel

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Oil and Gas Production: Revenue generated from exploration, development, and production of oil and natural gas resources

Distribution channels1 record

Marketing channels1 record

Core offering

Wintershall Dea GmbH was an upstream oil and gas exploration and production company that developed, operated, and sold crude oil and natural gas produced from fields in Norway, the United Kingdom, Germany, and the United States. Its core offering centered on hydrocarbon E&P operations, including exploration, field development, drilling, and reservoir management, with the company's upstream assets subsequently acquired by Harbour Energy in 2025 for approximately £9 billion.

Product overview

Wintershall Dea GmbH is an upstream oil and gas exploration and production company. The company's corporate website presents its historical operations spanning from the end of the 19th century to today, with focus areas including management oversight, historical responsibility, compliance, and supply chain management. The website structure indicates a corporate presence rather than a product-based platform offering.

Differentiator

Problem solved

Functional benefit

Products and services

• Wintershall Dea Upstream Operations Oil and gas exploration and production operations conducted across multiple regions, including Norway, the United Kingdom, Germany, and the United States, delivering crude oil and natural gas feedstock to enterprise energy buyers. The upstream assets were acquired by Harbour Energy in 2025 for approximately £9 billion.

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves5 records

Expansion highlights3 records

Market position

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/wintershalldea
• Xx.com/wintershalldea
• Facebookfacebook.com/wintershalldea

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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

M&A2 records

Investments

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

Frequently asked questions about Wintershall Dea AG