Company lists · Data refreshed September 2026
Top 25 Oil and gas cost accounting firms worldwide
RevenueBase identified 1,427 oil and gas cost accounting firms worldwide as of September 2026 and tracks 12,228 professional contacts across them, including 1,619 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers oil and gas cost accounting firms worldwide, 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 29, 2026. Country and city lists for oil and gas cost accounting firms follow the table.
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.
The 25 largest oil and gas cost accounting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 994 contacts → | ||||
Indirect evidence “Empresa líder en el Sector Petrolero, con presencia a Nivel Nacional, principales clientes PEMEX Y CFE, con servicios como perforación de pozos terrestres, Marinos, Geotérmicos…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 770 contacts → | ||||
Indirect evidence “Pioneer Energy Services is now Patterson-UTI” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 205 contacts → | ||||
Indirect evidence “Zarubezhneft” has a considerable scientific and technological potential that enables it to provide sophisticated full-cycle operations – from designing advanced computer-based…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 182 contacts → | ||||
Strong evidence “Providing bookkeeping functions for oil and gas operator, investor, and royalty management entities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 122 contacts → | ||||
Indirect evidence “Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 115 contacts → | ||||
Strong evidence “For over 90 years, Henry & Peters has provided comprehensive accounting services with a depth of experience in Oil & Gas, Healthcare, Engineering, Construction, Small Business…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 109 contacts → | ||||
Indirect evidence “Ryder Scott Company, L.P.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 105 contacts → | ||||
Indirect evidence “JayBee offers integrated / turnkey oilfield solutions starting from API, Drilling, Cementing, Mud Logging, Mud Engineering, Directional Drilling, Testing, workover as well as well…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 104 contacts → | ||||
Indirect evidence “A Plumas atua na área contábil, especificamente a postos de revenda de combustíveis e conta com uma equipe de consultores que se deslocam até a sua empresa para realizar uma…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 104 contacts → | ||||
Strong evidence “Victory Oil & Energy is an ingenious oil and gas organization with its astute core focus centered primarily across the upstream segment in the energy space with an impactful track…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 102 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 96 contacts → | ||||
Indirect evidence “Sabah International Petroleum Sdn Bhd” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 77 contacts → | ||||
Strong evidence “HC Global Business Solutions, LLC provides you with quality, cost-effective, scalable finance and accounting services, delivered by experienced professionals applying…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 77 contacts → | ||||
Strong evidence “HPF Consultants is an engineering and design firm located in Midland, Texas that has served the Oil and Gas industry for more than 30+ years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 76 contacts → | ||||
Strong evidence “March 21, 2023, marked an important milestone for Stokes & Spiehler.a half century serving the oil & gas industry!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 67 contacts → | ||||
Indirect evidence “We’re Your Partner in Energy Asset Management, from Advising to Outsourcing.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 67 contacts → | ||||
Partial evidence “THE SANDUR MANGANESE AND IRON ORES LIMITED is an Accounting company located in Bellary Road, Bengaluru, Karnataka, India.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 67 contacts → | ||||
Partial evidence “Lifetouch Canada Inc is an Accounting company located in 1410 Mountain Ave, Winnipeg, MB, Canada.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 67 contacts → | ||||
Partial evidence “Provident Agro Tbk PT (PALM) is an Accounting company located in Kav 22-23 Jalan Jend.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 66 contacts → | ||||
Strong evidence “Martindale Consultants was founded in 1982 to deliver specialized audit, accounting, and regulatory compliance services to the oil and gas industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 55 contacts → | ||||
Strong evidence “At A Glance;* Oil & Gas Engineering Company,* Managed by Practicing Refinery Engineers,* Engineering Expertise that Minimizes Cost & Improves Process,* Over 100 Total Project…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 45 contacts → | ||||
Indirect evidence “New Energy Services Company Limited (NESSCO) is a 100% Nigerian owned company incorporated in 2003.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 44 contacts → | ||||
Partial evidence “Accolet Advisors Private Limited - India is an accounting company based out of No.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 41 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 38 contacts → | ||||
Partial evidence “Golden Falcon Consultants is one of the leading providers of accounting, auditing, data entry, management and financial consulting services in the United Arab Emirates.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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 cost accounting firms. 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 cost accounting firms.
- Partial evidence
- Its own public description names part of oil and gas cost accounting firms, 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 cost accounting firms. 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 1,427 oil and gas cost accounting firms worldwide
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Oil and gas cost accounting firms worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 cost accounting firms, 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.
- Coverage
- Every country. Country and city lists for oil and gas cost accounting firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “oil and gas cost accounting firms”. 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 cost accounting firms), 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 cost accounting firms, and records with no verified work email.
- 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, 1,619 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 29, 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 cost accounting firms by location
6 lists · largest firstEvery Oil and gas cost accounting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Oil and gas cost accounting firms based in the United States323
- Oil and gas cost accounting firms based in the United Kingdom278
- Oil and gas cost accounting firms based in Brazil193
- Oil and gas cost accounting firms based in France91
- Oil and gas cost accounting firms based in Canada50
Cities
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 cost accounting firms, 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 cost accounting firms are there worldwide?
RevenueBase identified 1,427 oil and gas cost accounting firms worldwide 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?
Carso Perforación, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most oil and gas cost accounting firms?
The United States leads with 323 companies, followed by the United Kingdom (278) and Brazil (193). Every oil and gas cost accounting firms list by country and city is linked on this page.
Which city has the most oil and gas cost accounting firms?
Houston leads with 39 headquartered companies, followed by London (32) and Sao Paulo (30).
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 1,619 verified decision-maker contacts tracked across these 1,427 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 29, 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.