Company lists · Data refreshed September 2026

Top 25 Exploration and production accounting firms worldwide

RevenueBase identified 1,589 company matches for exploration and production accounting firms worldwide as of September 2026 and tracks 107,232 professional contacts across them, including 22,631 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for exploration and production accounting firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026. Country and city lists for exploration and production accounting firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
1,589Companies
107,232Contacts tracked
22,631Verified emails
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The 25 largest exploration and production accounting firms worldwide

Ranked by team size
Top 25 of 1,589 company matches for exploration and production accounting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Sep 28, 202610001+53,380 contacts →

Exact match

“We collaborate and engineer solutions to maximize asset value for our customers.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 28, 2026n/a3,514 contacts →

Exact match

“Murphy Oil Corporation is a global independent oil and natural gas exploration and production company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchThe Woodlands, TX, United StatesHQ recorded Sep 28, 20261,001-5,0003,460 contacts →

Exact match

“Anadarko is among the world’s largest independent oil and natural gas exploration and production companies, with corporate offices in The Woodlands, Texas.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Sep 28, 20261,001-5,0002,755 contacts →

Exact match

“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchKuala Lumpur, MalaysiaHQ recorded Sep 28, 2026501-1,0002,654 contacts →

Exact match

“PETRONAS CARIGALI SDN.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact match北京市, ChinaHQ recorded Sep 28, 202610001+1,952 contacts →

Exact match

“Sinopec International Petroleum Service Corporation SSC”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Sep 28, 2026501-1,000785 contacts →

Exact match

“Gran Tierra Energy Inc, together with its subsidiaries, is a company focused on oil and gas exploration and production in Azerbaijan, Canada, Colombia and Ecuador.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchSan Antonio, TX, United StatesHQ recorded Sep 28, 20261,001-5,000770 contacts →

Exact match

“Pioneer Energy Services is now Patterson-UTI”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchSan Antonio, TX, United StatesHQ recorded Sep 28, 20261,001-5,000736 contacts →

Exact match

“Lewis Energy is a privately-owned, exploration and production company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500655 contacts →

Exact match

“Assala Energy is an oil exploration and production company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchVilla El Salvador, PeruHQ recorded Sep 28, 20261,001-5,000645 contacts →

Exact match

“Explomin del Perú S.A.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,000587 contacts →

Exact match

“Established in 2007, Energean is a London-listed FTSE 250 and Tel Aviv-listed TA-90 E&P company with operations in the Europe, Middle East and Africa (“EMEA”) region.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchChennai, IndiaHQ recorded Sep 28, 2026201-500535 contacts →

Exact match

“India's First Private Oil and Gas Company!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchDenver, CO, United StatesHQ recorded Sep 28, 2026201-500466 contacts →

Exact match

“IFS Energy and Resources is the world’s largest independent provider of software and data solutions exclusively serving the upstream oil and gas, mining, and resource industries.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 28, 2026201-500424 contacts →

Exact match

“EnerVest is a top-tier, low-cost oil and natural gas operating company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchDenver, CO, United StatesHQ recorded Sep 28, 2026501-1,000388 contacts →

Exact match

“The merger between Cimarex Energy and Cabot Oil & Gas was completed on October 1, 2021, creating the new E&P company, Coterra Energy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchDenver, CO, United StatesHQ recorded Sep 28, 2026201-500387 contacts →

Exact match

“With a proud legacy and an exciting future, QEP Resources is a leading independent crude oil and natural gas exploration and production company focused on two of the most prolific…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchAllen, ArgentinaHQ recorded Sep 28, 2026201-500344 contacts →

Exact match

“Es una compañía de servicios creada en el año 2009 para trabajar en el upstream de la industria petrolera.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchBenin City, NigeriaHQ recorded Sep 28, 20261,001-5,000277 contacts →

Exact match

“NNPC E&P Limited (NEPL), a wholly-owned subsidiary of the Nigerian National Petroleum Company Limited (NNPCL), operates as a prominent entity involved in the exploration and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchUnited StatesHQ recorded Sep 28, 202651-200277 contacts →

Exact match

“Oil & Gas Exploration and Production.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchCut Off, LA, United StatesHQ recorded Sep 28, 2026201-500272 contacts →

Exact match

“Founded as C&D Wireline in 1968, with C&D Production Specialist joining the business in 1993, today Crosby Energy Services is a certified Women’s Business Enterprise National…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchDallas, TX, United StatesHQ recorded Sep 28, 2026201-500268 contacts →

Exact match

“Reserves assessments and appraisals • Prospective resources assessments • Unconventional resources assessments • Contingent resources assessments • Reservoir simulation •…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchMaracaibo, VenezuelaHQ recorded Sep 28, 20261,001-5,000255 contacts →

Exact match

“CPVEN es una empresa multinacional líder en Servicios a Pozos de Petróleo y Gas, con actividades de Exploración y Producción, comprometida a la creación de valor para sus clientes…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchRawalpindi, PakistanHQ recorded Sep 28, 2026501-1,000251 contacts →

Exact match

“Pakistan Oilfields Limited (POL) is a leading oil and gas exploration and production Company listed on Pakistan Stock Exchange (PSX).”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchRio De Janeiro, BrazilHQ recorded Sep 28, 2026201-500236 contacts →

Exact match

“Somos a OGX, companhia de óleo e gás do Grupo EBX.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 1,589 exploration and production accounting firms worldwide

See the full list, filter by size, metro and specialty, and access 22,631 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Exploration and production accounting firms worldwide at a glance

As of Sep 28, 2026
21.1%Verified-email coverage
67.5Average contacts per company
11-50Median size (employees)
9.1%Largest-city concentration · Houston
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
727
11-50
500
51-200
209
201-500
68
501-1,000
32
1,001-5,000
28
5,001-10,000
7
10001+
11

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for exploration and production accounting firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “exploration and production accounting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 22,631 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Exploration and production accounting firms by location

13 lists · largest first

Every Exploration and production accounting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “exploration and production accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many exploration and production accounting firms are there worldwide?

RevenueBase identified 1,589 company matches for exploration and production accounting firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Halliburton tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most exploration and production accounting firms?

The United States leads with 619 companies, followed by the United Kingdom (92) and Canada (85). Every exploration and production accounting firms list by country and city is linked on this page.

Which city has the most exploration and production accounting firms?

Houston leads with 145 company records, followed by Calgary (64) and Dallas (44).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 22,631 professional contacts with verified work emails tracked across these 1,589 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 SmartSearch, 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.