> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-in/tulsa-ok/oil-and-gas/ # Oil and Gas Companies in Tulsa, OK The bigger oil and gas companies headquartered in Tulsa, OK, with what they do, their sizes and how to reach their people. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** Among the oil and gas companies counted in Tulsa, OK, the biggest by headcount range include Williams, Oneok and T.D. Williamson. They are mostly very small: 57% have 50 or fewer employees. ## Which oil and gas companies are in Tulsa? Among the companies whose public profile lists Oil and Gas as their industry and Tulsa, OK as their headquarters, the biggest by headcount range include Williams, Oneok, T.D. Williamson, Magellan Midstream Partners and Zeeco. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Williams | 5,001 to 10,000 | | Oneok | 5,001 to 10,000 | | T.D. Williamson | 1,001 to 5,000 | | Magellan Midstream Partners | 1,001 to 5,000 | | Zeeco | 1,001 to 5,000 | | John Zink Hamworthy Combustion | 1,001 to 5,000 | | Latshaw Drilling | 1,001 to 5,000 | | Pipe Liners Club Of Tulsa | 1,001 to 5,000 | | Ngl Energy Partners | 501 to 1,000 | | American Piping Inspection | 501 to 1,000 | | Parfab Companies | 501 to 1,000 | | American Cementing | 501 to 1,000 | | Vital Energy | 201 to 500 | | Frontier Integrity Solutions | 201 to 500 | | Reliance Oilfield Services | 201 to 500 | | Explorer Pipeline | 201 to 500 | | D&l Oil Tools | 201 to 500 | | Fw Murphy Production Controls | 201 to 500 | | Golden Field Services | 201 to 500 | | Manhattan Pipeline | 201 to 500 | | Tulsa Geological Society | 201 to 500 | | Vanco, A Cogent | 201 to 500 | | Petroskills Oil And Gas Training | 51 to 200 | | Samson Resources | 51 to 200 | | Enduro Pipeline Services | 51 to 200 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## What do oil and gas companies in Tulsa do? Oil and Gas is a broad label. The most common NAICS codes among them are 213112 (18%), 423830 (9%) and 541330 (7%). **Figure: What oil and gas companies in Tulsa do.** Bars for the share of counted oil and gas companies with each code: 213112 18%, 423830 9%, 541330 7%, 424720 5%, 541690 5%, 561110 5%. *Share of counted oil and gas companies in Tulsa by their NAICS code.* [NAICS 424720](https://enrich.chat/naics/424720/) ## How big are they? 57% of the oil and gas companies counted in Tulsa have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of oil and gas companies in Tulsa.** Seven columns for the share of counted oil and gas companies in Tulsa in each employee range: 11 to 50 57%, 51 to 200 30%, 201 to 500 6%, 501 to 1,000 2%, 1,001 to 5,000 4%, 5,001 to 10,000 1%, 10,001+ 0%. *Share of counted oil and gas companies in Tulsa in each employee range.* ## How old are they? Most were founded in the 2010s (26%), then the before 1960 (18%). **Figure: When oil and gas companies in Tulsa were founded.** Eight columns for the share of counted oil and gas companies in Tulsa founded in each era: Before 1960 18%, 1960s 3%, 1970s 16%, 1980s 13%, 1990s 12%, 2000s 10%, 2010s 26%, 2020s 2%. *Share of counted oil and gas companies in Tulsa by the era they were founded in, for the ones that list a founding year.* ## How oil and gas companies compare - 57% of oil and gas companies in Tulsa have 50 or fewer employees, against 71% across other cities on this site. - 28% were founded in 2010 or later, against 54% across other cities on this site. ## How do you reach the people at oil and gas companies in Tulsa? The people to talk to are usually operations, procurement and finance leaders. Build the list in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the oil and gas companies in Tulsa, OK ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the operations, procurement and finance leaders at oil and gas companies in Tulsa, OK, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Other industries in Tulsa: [Construction Companies](https://enrich.chat/companies-in/tulsa-ok/construction/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/tulsa-ok/hospitals-and-health-care/)[Real Estate Companies](https://enrich.chat/companies-in/tulsa-ok/real-estate/)[Financial Services Companies](https://enrich.chat/companies-in/tulsa-ok/financial-services/)[Insurance Companies](https://enrich.chat/companies-in/tulsa-ok/insurance/)[All of Tulsa](https://enrich.chat/companies-in/tulsa-ok/) Oil and Gas Companies in other cities: [Houston, TX](https://enrich.chat/companies-in/houston-tx/oil-and-gas/)[Dallas, TX](https://enrich.chat/companies-in/dallas-tx/oil-and-gas/)[Oklahoma City, OK](https://enrich.chat/companies-in/oklahoma-city-ok/oil-and-gas/)[Denver, CO](https://enrich.chat/companies-in/denver-co/oil-and-gas/)[Fort Worth, TX](https://enrich.chat/companies-in/fort-worth-tx/oil-and-gas/)[San Antonio, TX](https://enrich.chat/companies-in/san-antonio-tx/oil-and-gas/) ## Frequently asked questions ### Which are the biggest oil and gas companies in Tulsa? Among those counted, they include Williams, Oneok, T.D. Williamson, Magellan Midstream Partners and Zeeco, ranked by headcount range. ### How big are oil and gas companies in Tulsa? 57% of those counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### Which companies count as oil and gas? Companies whose public profile lists Oil and Gas as their industry and whose headquarters are in Tulsa, OK. ## Try this prompt Find the people at oil and gas companies in Tulsa ```text Use www.enrich.chat to find the operations, procurement and finance leaders at oil and gas companies in Tulsa, OK, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Construction Companies in Tulsa](https://enrich.chat/companies-in/tulsa-ok/construction/) - [Hospitals and Health Care Organizations in Tulsa](https://enrich.chat/companies-in/tulsa-ok/hospitals-and-health-care/) - [Real Estate Companies in Tulsa](https://enrich.chat/companies-in/tulsa-ok/real-estate/) - [Financial Services Companies in Tulsa](https://enrich.chat/companies-in/tulsa-ok/financial-services/) - [Oil and Gas Companies in Houston](https://enrich.chat/companies-in/houston-tx/oil-and-gas/) - [Oil and Gas Companies in Dallas](https://enrich.chat/companies-in/dallas-tx/oil-and-gas/) - [Oil and Gas Companies in Oklahoma City](https://enrich.chat/companies-in/oklahoma-city-ok/oil-and-gas/) - [Oil and Gas Companies in Denver](https://enrich.chat/companies-in/denver-co/oil-and-gas/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)