Company lists · Data refreshed September 2026

Top 14 Onshore oil and gas producers based in Brazil

Name: Onshore oil and gas producers based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 43 companies tracked

RevenueBase identified 43 onshore oil and gas producers headquartered in Brazil as of September 2026 and tracks 6,720 professional contacts across them, including 2,005 with verified work emails. Rio De Janeiro is the largest hub.

This list covers onshore oil and gas producers 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

43Companies

6,720Contacts tracked

2,005Verified emails

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The 14 largest onshore oil and gas producers based in Brazil

Ranked by team size

Top 14 of 43 onshore oil and gas producers 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 onshore oil and gas producers: 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	3r Petroleum	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1,001-5,000	278 contacts →
	Indirect evidence “Agora somos BRAVA Energia!” Source: RevenueBase Database · checked Sep 17, 2026
2	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
3	Fatima DO SUL Agro-Energetica S A	Partial evidence	Fatima Do Sul, BrazilHQ checked Sep 17, 2026	51-200	146 contacts →
	Partial evidence “Fatima Do Sul Agro-Energetica S/A - Alcool E Acucar is an oil & energy company based out of Otr Linha Do Barreirinho, S/N, Lotes 02,03,04 Quadra 43, Fatima Do Sul, Ms, Brazil.” Source: RevenueBase Database · checked Sep 17, 2026
4	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
5	Perbras Empresa Brasileira DE Perfuracoes	Indirect evidence	Catu, BrazilHQ checked Sep 17, 2026	1,001-5,000	63 contacts →
	Indirect evidence “Empresa que atua no setor de petróleo e gás natural.” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	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
8	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
9	Linhares Geração S.A	Partial evidence	Linhares, BrazilHQ checked Sep 17, 2026	51-200	22 contacts →
	Partial evidence “Linhares Geracao SA is an Oil and Energy company located in Linhares, ES, Brazil.” Source: RevenueBase Database · checked Sep 17, 2026
10	Exen Technology DO Brasil	Strong evidence	Nossa Senhora Do Socorro, BrazilHQ checked Sep 17, 2026	11-50	13 contacts →
	Strong evidence “Exen Technology Corporation brings the best-in-class quality services, people and technology available in our region to help our customers to maxime production in oil and gas…” Source: RevenueBase Database · checked Sep 17, 2026
11	USS Global	Indirect evidence	Rio Das Ostras, BrazilHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “A USS Global é uma empresa comercial localizada estrategicamente no Rio de Janeiro.” Source: RevenueBase Database · checked Sep 17, 2026
12	Nord OIL And GAS	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “Nord is a company dedicated to the Exploration and Production (E&P) of oil in the northeast region of Brazil.” Source: RevenueBase Database · checked Sep 17, 2026
13	Gsteer Energy Solutions	Indirect evidence	Aracaju, BrazilHQ checked Sep 17, 2026	11-50	1 contacts →
	Indirect evidence “Gsteer Energy Services Mission 1.” Source: RevenueBase Database · checked Sep 17, 2026
14	BS	Indirect evidence	Jundiaí, BrazilHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence “BS Company” 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: onshore oil and gas producers. 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 onshore oil and gas producers.
Partial evidence: Its own public description names part of onshore oil and gas producers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name onshore oil and gas producers. 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 14 of 43 onshore oil and gas producers based in Brazil

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Onshore oil and gas producers based in Brazil at a glance

As of Sep 17, 2026

29.8%Verified-email coverage

156.3Average contacts per company

11-50Median size (employees)

16.3%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 43 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 onshore oil and gas producers, 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 “onshore oil and gas producers”. 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 onshore oil and gas producers), 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 onshore oil and gas producers, 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, 2,005 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.

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 onshore oil and gas producers, 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 onshore oil and gas producers are there based in Brazil?

RevenueBase identified 43 onshore oil and gas producers 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?

3r Petroleum, headquartered in Rio De Janeiro, tops this list with the largest team on record.

Which city has the most onshore oil and gas producers?

Rio De Janeiro leads with 7 headquartered companies, followed by Aracaju (2) and Catu (2).

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 2,005 verified decision-maker contacts tracked across these 43 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.