Company lists · Data refreshed September 2026
Top 25 Natural gas law firms worldwide
RevenueBase identified 248 natural gas law firms worldwide as of September 2026 and tracks 2,636 professional contacts across them, including 1,310 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers natural gas law 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 natural gas law 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 natural gas law firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 259 contacts → | ||||
Indirect evidence “Liskow was founded in 1935 and includes nearly 150 lawyers across our five offices, strategically located in New Orleans, Lafayette, and Baton Rouge, Louisiana, Houston, Texas…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 227 contacts → | ||||
Indirect evidence “Ao seu lado, levando mais eficiência, valor e conforto.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 160 contacts → | ||||
Partial evidence “For almost 100 years, McGinnis Lochridge has served to protect the interests of our clients in continuously changing landscapes including cutting-edge technology, oil and gas…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 92 contacts → | ||||
Partial evidence “Oliva Gibbs is a nationally recognized law firm with offices in Columbus, OH, Houston, TX, Lafayette, LA, Midland, TX, Oklahoma City, OK, and San Antonio, TX.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 88 contacts → | ||||
Partial evidence “Somos una firma de servicios legales integrales, ampliamente reconocida como la firma líder en el Perú para el sector energético (electricidad, petróleo y gas).” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 85 contacts → | ||||
Partial evidence “Kuiper Law Firm has established itself as a trusted legal partner for businesses across diverse industries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 77 contacts → | ||||
Strong evidence “For more than 20 years, SíEnergy has been a trusted provider of premium natural gas services to top-rated communities in Texas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 64 contacts → | ||||
Strong evidence “At Beatty & Wozniak, we focus on energy and natural resources law.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 63 contacts → | ||||
Partial evidence “Manko, Gold, Katcher & Fox, LLP (Manko Gold) is an environmental, energy and land use law firm spanning the full range of regulatory compliance, transactional and litigation…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 53 contacts → | ||||
Strong evidence “Toeppich and Associates is one of the most recognized firms in the oil and gas industry, with attorneys practicing in all areas of oil and gas law, including title examination…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 50 contacts → | ||||
Strong evidence “Tiger was founded in 1991 as a Minority and Woman Owned Natural Gas Marketing Company and has over 400 years of collective experience in all areas of the natural gas business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 46 contacts → | ||||
Strong evidence “John & Hengerer LLP represents and advises energy companies, inlcuding natural gas producers, importers, processors, and marketers; gas and liquids pipeline operators; gas storage…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 42 contacts → | ||||
Indirect evidence “TCO Land & Regulatory has been advancing the energy sector as a trusted partner for nearly 70 years, offering exceptional land services, project management, and energy compliance.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 39 contacts → | ||||
Indirect evidence “Elias, Books, Brown & Nelson was founded upon, and adheres to, the principles of providing an excellent legal product, paying attention to the client, and offering a cost…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 36 contacts → | ||||
Partial evidence “Atencio Hall, PLLC is a law firm specializing in a wide variety of legal services in energy law, corporate, and real estate representation.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 36 contacts → | ||||
Indirect evidence “At Optima Land Group, we feel like that we serve our Clients best as a collaborative consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 35 contacts → | ||||
Indirect evidence “At Keegan Werlin LLP, we specialize in developing creative solutions to the complex challenges our clients encounter in their business environments.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 35 contacts → | ||||
Indirect evidence “For over 70 years, Wright & Talisman has been a steady partner with energy companies helping them navigate the complexities of the Federal Energy Regulatory Commission (FERC) and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 35 contacts → | ||||
Indirect evidence “CALDEN es una consultora, con oficinas en Argentina, Brasil y Perú, formada por profesionales que poseen una larga trayectoria y una importante experiencia en asesoría legal y…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 32 contacts → | ||||
Indirect evidence “A Regis Pontes Advogados é um escritório especializado em Direito de Energia, composto por profissionais especializados e experientes, e que tem por objetivo auxiliar seus…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 31 contacts → | ||||
Indirect evidence “Hinkle Shanor LLP, stands apart.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 28 contacts → | ||||
Partial evidence “Founded by experienced, board-certified oil and gas attorneys, Santoyo Wehmeyer P.C.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 27 contacts → | ||||
Strong evidence “Oram & Houghton, PLLC is a full service natural resources law firm that specializes in upstream and midstream operations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 27 contacts → | ||||
Indirect evidence “McElroy, Sullivan, Miller & Weber, LLP was founded over 35 years ago.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 18 contacts → | ||||
Partial evidence “Kirby, Mathews & Walrath is a professional limited liability company which was founded on the idea that the participants in the oil and gas industry are best served by a firm that…” 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: natural gas law 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 natural gas law firms.
- Partial evidence
- Its own public description names part of natural gas law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name natural gas law 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 248 natural gas law firms worldwide
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Natural gas law 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 natural gas law 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 natural gas law firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “natural gas law 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 natural gas law 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 natural gas law 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, 1,310 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.
Natural gas law firms by location
2 lists · largest firstEvery Natural gas law 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 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 natural gas law 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 natural gas law firms are there worldwide?
RevenueBase identified 248 natural gas law 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?
Liskow, headquartered in New Orleans, tops this list with the largest team on record.
Which country has the most natural gas law firms?
The United States leads with 117 companies. Every natural gas law firms list by country and city is linked on this page.
Which city has the most natural gas law firms?
Houston leads with 28 headquartered companies, followed by Denver (8) and Washington (8).
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 1,310 verified decision-maker contacts tracked across these 248 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.