Company lists · Data refreshed September 2026

Top 25 Oil and gas exploration companies based in Brazil

Name: Oil and gas exploration companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 126 companies tracked

RevenueBase identified 126 oil and gas exploration companies headquartered in Brazil as of September 2026 and tracks 15,907 professional contacts across them, including 2,962 with verified work emails. Rio De Janeiro is the largest hub.

This list covers oil and gas exploration companies headquartered in Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

126Companies

15,907Contacts tracked

2,962Verified emails

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The 25 largest oil and gas exploration companies based in Brazil

Ranked by team size

Top 25 of 126 oil and gas exploration companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas exploration companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Perbras	Indirect evidence	Catu, BrazilHQ checked Sep 17, 2026	1,001-5,000	2,946 contacts →
	Indirect evidence “A PERBRAS é uma empresa brasileira que atua há 50 anos no mercado de Petróleo e Gás em diversas regiões do Brasil.” Source: RevenueBase Database · checked Sep 17, 2026
2	OCYAN	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1,001-5,000	2,427 contacts →
	Indirect evidence “A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Source: RevenueBase Database · checked Sep 17, 2026
3	PRIO	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	501-1,000	1,378 contacts →
	Indirect evidence “Somos a PRIO, a maior companhia independente de óleo e gás do Brasil.” Source: RevenueBase Database · checked Sep 17, 2026
4	OGX OIL And GAS	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	236 contacts →
	Indirect evidence “Somos a OGX, companhia de óleo e gás do Grupo EBX.” Source: RevenueBase Database · checked Sep 17, 2026
5	Oilequip	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	127 contacts →
	Indirect evidence “A Oilequip Produtos e Serviços Ltda.” Source: RevenueBase Database · checked Sep 17, 2026
6	Great Holdings	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	98 contacts →
	Indirect evidence “A Great Holdings acredita no enorme potencial do mercado de petróleo e gás brasileiro e seu papel no crescimento sustentável do nosso País.” Source: RevenueBase Database · checked Sep 17, 2026
7	Equatorial Energia Maranhão	Partial evidence	Caxias, BrazilHQ checked Sep 17, 2026	51-200	80 contacts →
	Partial evidence “Equatorial Energia Maranhão is an oil & energy company based out of R.” Source: RevenueBase Database · checked Sep 17, 2026
8	Enauta	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	75 contacts →
	Indirect evidence “Agora somos Brava Energia!” Source: RevenueBase Database · checked Sep 17, 2026
9	Geodeep	Indirect evidence	Maceió, BrazilHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “A GEODEEP é uma empresa especializada em diversos tipos de serviços onshore, offshore e zona de transição, em especial, levantamentos de dados geofísicos, geológicos e geotécnicos.” Source: RevenueBase Database · checked Sep 17, 2026
10	Petrosynergy	Partial evidence	Maceio, BrazilHQ checked Sep 17, 2026	51-200	55 contacts →
	Partial evidence “Petrosynergy is an oil & energy company based out of Av Comend Gustavo Paiva, 2789, Edif Norcon Empresarial Andar 6 Andar Sala 601 A 605, Maceio, Alagoas, Brazil.” Source: RevenueBase Database · checked Sep 17, 2026
11	Fluxus	Strong evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	51 contacts →
	Strong evidence “FLUXUS OGE is a Brazilian oil company that is in active process of building an oil & gas Production portfolio throughout Latin America and a global Exploratory portfolio.” Source: RevenueBase Database · checked Sep 17, 2026
12	Geonew Consultoria EM Geologia, Mineração E Meio Ambiente	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “A Geonew Consultoria e Serviços Geológicos Ltda é um empresa nova no mercado de prestação de serviços de geologia e exploração mineral, mas que conta com profissionais sêniores…” Source: RevenueBase Database · checked Sep 17, 2026
13	Alvopetro S A Extração DE Petróleo E GÁS Natural	Indirect evidence	Salvador, BrazilHQ checked Sep 17, 2026	11-50	40 contacts →
	Indirect evidence “Alvopetro S/A Extração de Petróleo e Gás Natural é uma empresa detentora de ativos de exploração de petróleo & gás natural e de processamento de gás natural terrestre na Bahia.” Source: RevenueBase Database · checked Sep 17, 2026
14	Petrolane	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Fundada em 1991, a Petrolane tem como objetivo principal a produção, representação e comercialização de equipamentos de prospecção, produção e medição, de origem nacional e/ou…” Source: RevenueBase Database · checked Sep 17, 2026
15	AFC Geofísica	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 17, 2026	11-50	40 contacts →
	Indirect evidence “Founded in 1997, the company specialises in the acquisition, processing and interpretation of terrestrial and aquatic geophysical data, working in the areas of Mining…” Source: RevenueBase Database · checked Sep 17, 2026
16	Horizonte Mineiro Serviços Geológicos Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “Com uma equipe de profissionais experientes e especializados, contamos com décadas de expertise em técnicas de sondagem diamantada e sônica.” Source: RevenueBase Database · checked Sep 17, 2026
17	Níon Energia S.A	Indirect evidence	Mossoró, BrazilHQ checked Sep 17, 2026	51-200	34 contacts →
	Indirect evidence “A NÍON ENERGIA é uma inovadora operadora brasileira de Exploração e Produção de petróleo e gás natural.” Source: RevenueBase Database · checked Sep 17, 2026
18	Petrec	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	29 contacts →
	Indirect evidence “PETREC is a technology-based company, 100% Brazilian, spin-off of COPPE/UFRJ, with headquarters in the Business Incubator of UFRJ, located inside the Technological Park at Ilha do…” Source: RevenueBase Database · checked Sep 17, 2026
19	Mineral Geologia	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	11-50	21 contacts →
	Indirect evidence “Empresa de Geologia, que presta serviços de consultoria Mineral, Ambiental, Industrial, Geoprocessamento e Topografia, voltado à Mineração, Indústrias de Beneficiamento Mineral e…” Source: RevenueBase Database · checked Sep 17, 2026
20	Geoinform	Indirect evidence	Rio Claro, BrazilHQ checked Sep 17, 2026	1-10	12 contacts →
	Indirect evidence “Há 35 anos a Geoinform Ambiental é uma empresa de consultoria em geologia, mineração, meio ambiente e geofísica.” Source: RevenueBase Database · checked Sep 17, 2026
21	Kognitus Subsurface Analysis At The Speed Of AI	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “About us In 2018, Kognitus was founded in Rio de Janeiro, Brazil, to facilitate the adoption of AI technologies and accelerate their insertion into the mainstream of subsurface…” Source: RevenueBase Database · checked Sep 17, 2026
22	GEO Supply Soluções Geológicas Ltda	Indirect evidence	São Paulo, BrazilHQ checked Sep 17, 2026	1-10	10 contacts →
	Indirect evidence “A Geo Supply tem como objetivo oferecer os planos de investigações geológicas mais consistentes e focados nos principais parâmetros de diferentes cenários sejam eles voltados a…” Source: RevenueBase Database · checked Sep 17, 2026
23	Geopesquisa Investigações Geológicas Eireli	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “A Geopesquisa Investigações Geológicas Ltda.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tecnosuporte	Indirect evidence	Macae, BrazilHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “A Tecnosuporte é a uma empresa inovadora e Perseverante na busca e utilização de novas tecnologias que visam garantir a integridade de equipamentos e ativos utilizados para…” Source: RevenueBase Database · checked Sep 17, 2026
25	GKF	Indirect evidence	Sao Cristovao, BrazilHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “A GKF é uma empresa de consultoria em Geologia e Engenharia de Petróleo que se propõe a resolver problemas relacionados ao entendimento de reservatórios de petróleo de campos…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oil and gas exploration companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names oil and gas exploration companies.
Partial evidence: Its own public description names part of oil and gas exploration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas exploration companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 126 oil and gas exploration companies based in Brazil

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Oil and gas exploration companies based in Brazil at a glance

As of Sep 17, 2026

18.6%Verified-email coverage

126.2Average contacts per company

11-50Median size (employees)

29.4%Largest-city concentration · Rio De Janeiro

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 126 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oil and gas exploration companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Brazil whose own description of what they do matches “oil and gas exploration companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names oil and gas exploration companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among oil and gas exploration companies, and records with no verified work email. Companies headquartered outside Brazil are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,962 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Oil and gas exploration companies by metro

Oil and gas exploration companies in Rio De Janeiro37

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names oil and gas exploration companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many oil and gas exploration companies are there based in Brazil?

RevenueBase identified 126 oil and gas exploration companies headquartered in Brazil as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Perbras, headquartered in Catu, tops this list with the largest team on record.

Which city has the most oil and gas exploration companies?

Rio De Janeiro leads with 37 headquartered companies, followed by Sao Paulo (12) and Belo Horizonte (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,962 verified decision-maker contacts tracked across these 126 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.