ONEOK Internship 2027–2028: Programs, Deadlines & How to Apply

Last updated: September 2026

ONEOK (pronounced ONE-oak, NYSE: OKE) welcomed nearly 100 interns in its 2025 summer cohort and was recognized as one of the Top 100 Internship Programs in America. Founded in 1906 as Oklahoma Natural Gas Company, ONEOK has grown into one of the largest diversified midstream operators in the United States with $33.6 billion in revenue (2025) and approximately 6,326 employees. The company operates more than 60,000 miles of pipeline infrastructure, connecting NGL supply in the Rocky Mountain, Permian, and Mid-Continent regions to key market centers. After its $18.8 billion acquisition of Magellan Midstream Partners in 2023 and subsequent acquisitions of Medallion Midstream and EnLink Midstream, ONEOK has access to nearly 50% of the nation's refining capacity. An S&P 500 and Fortune 500 component with an MSCI ESG Rating of AAA, ONEOK offers 10-12 week paid summer internships at $23-$40/hr across engineering, commercial, IT, accounting, and operations tracks. Glassdoor rates the company 4.0/5 across 312 reviews.

Quick Facts

Summer 2027 postings are already appearing on ONEOK's Workday portal alongside residual 2026 postings. ONEOK fills most intern positions during fall university recruiting. Apply now. Pay ranges from $23-$40/hr depending on track and experience level.

Externships are short, remote professional experience programs where you finish a real project with a real company. The EIC Energy Transition Venture Capital Market Research Externship and the Hydroficient IoT Cyber Defense Externship build the energy and cybersecurity skills ONEOK's engineering and IT tracks demand. Explore all Externships.

What Is an ONEOK Internship?

A ONEOK internship is a paid 10-12 week summer placement at one of America's largest midstream energy companies, recognized as a Top 100 Internship Program in America. The company welcomes nearly 100 interns per summer across engineering, commercial, accounting, IT, cyber security, HR, and terminal operations tracks. Interns work on real projects alongside experienced professionals and engage directly with business leaders. At $23-$40/hr, ONEOK's intern pay is among the highest in the midstream sector. The company's 60,000-mile pipeline network and recent $18.8 billion Magellan acquisition mean interns join a company in rapid expansion, processing and transporting the natural gas liquids that power the US petrochemical industry.

When Do ONEOK Internship Applications Open for 2027–2028?

ONEOK fills most intern positions during the fall university recruiting season, with applications opening around August to October for the following summer. Summer 2027 postings are already appearing on the Workday Early Careers portal alongside residual 2026 postings. The company hires across Tulsa (HQ), Dallas, Houston, and field locations. The Top 100 program recognition and $23-$40/hr pay range make ONEOK competitive with major oil and gas companies for engineering talent.

How to read this page: our dates come from tracking previous recruiting cycles and daily posting data. Treat them as informed estimates based on historical patterns, not confirmed dates. The company's official careers page is always the most current source. If a role is posted there, go by that, even if this page suggests the window hasn't opened yet.

Why You Must Apply the Week Applications Open

ONEOK's ~100-intern cohort and Top 100 program recognition attract strong competition from engineering and business programs across the central US. The company fills most positions during fall university recruiting, and Summer 2027 postings are already live. The $23-$40/hr pay range, with engineering roles at the top, is competitive with major oil and gas companies. The recent Magellan and Medallion acquisitions have expanded ONEOK's footprint dramatically, creating new project opportunities across the 60,000-mile pipeline network. Students who apply now and connect with ONEOK recruiters at campus career fairs this fall have the best odds.

Which ONEOK Internship Programs Should You Target?

ONEOK offers 14+ internship tracks across engineering, commercial, and corporate functions:

Additional tracks include HR and other corporate functions. See all live postings at the ONEOK Early Careers portal.

What Are the Eligibility Requirements?

ONEOK internship eligibility based on live postings and the careers page:

• Enrollment: currently enrolled undergraduate or graduate student pursuing a bachelor's or master's degree.

• Major: varies by track. Engineering requires mechanical, chemical, electrical, or petroleum engineering. Commercial prefers finance, economics, or business. IT/Cyber requires CS or cybersecurity.

• Work authorization: must be authorized to work in the United States. Visa sponsorship policy not explicitly stated.

• Physical requirements for field roles: terminal operator interns work at pipeline facilities and must meet safety and physical requirements.

How Does the $23-$40/hr Range Work?

The wide pay range reflects the diversity of ONEOK's intern tracks. Engineering roles (pipeline, NGL processing, mechanical/electrical) command the highest rates, consistent with oil and gas industry norms where engineering interns earn $30 to $40 per hour. Commercial and IT roles fall in the middle ($25-$35/hr). Accounting, HR, and terminal operations sit at the lower end ($23-$28/hr). All rates are competitive within the midstream energy sector and above many other industry intern benchmarks.

What Skills Does ONEOK Look For, and How Do You Build Them?

ONEOK sits at the intersection of pipeline engineering, NGL processing, and energy commodity trading, and its intern hiring reflects that operational identity. Across 14+ tracks, safety awareness and technical problem-solving appear in every role. The company's rapid expansion through acquisitions (Magellan $18.8B, Medallion, EnLink) creates demand for interns who can contribute to integration projects, operational optimization, and commercial growth. What does this tell you? ONEOK hires people who combine technical fundamentals with the operational awareness that keeps 60,000 miles of pipeline running safely.

How Is Demand for Midstream Energy Interns Moving Right Now?

Build These Skills Before You Apply

And every skill in the chart maps to a remote Externship where you finish a real company project before the window opens.

How close is the overlap? The EIC project builds energy market research skills in ONEOK's own commodity context, the Hydroficient work covers IoT and infrastructure cybersecurity directly relevant to pipeline SCADA systems, and the Yinan Zhao deliverable trains financial analysis for the accounting and commercial tracks.

What Is the ONEOK Application and Interview Process Like?

ONEOK recruits primarily through fall university career fairs with rolling selections:

1. Apply online at the ONEOK Early Careers portal. Multiple Summer 2027 postings are already live.

2. Connect with ONEOK at campus career fairs this fall. The company states most intern positions are filled during the fall university recruiting season. Face-to-face connections with recruiters improve your chances.

3. Phone screen with recruiter covering motivation, energy industry interest, and role fit.

4. Technical/behavioral interview with hiring manager. Engineering candidates should be prepared to discuss NGL processing, pipeline operations, and relevant coursework. Commercial candidates discuss commodity markets and analytical skills.

5. Receive your offer with location assignment (Tulsa, Dallas, Houston, or field). Join a cohort of ~100 fellow interns in a Top 100 recognized program.

Know what ONEOK does: the company gathers, processes, transports, and stores natural gas liquids (NGLs). Understanding the difference between NGL fractionation, pipeline transportation, and crude oil gathering shows genuine industry knowledge. Our HireVue question guide with a free AI mock tool covers behavioral interview preparation.

What the Community Says

ONEOK generates discussion in energy industry and engineering communities as a major midstream employer.

How Do You Stand Out at a Company With 60,000 Miles of Pipeline?

Three moves, all executable before applying. First, understand what midstream means. ONEOK does not produce oil or gas (upstream) or refine it (downstream). Midstream is the infrastructure in between: gathering, processing, transporting, and storing natural gas liquids. Explaining this distinction and why NGL infrastructure matters to the US petrochemical industry signals genuine industry knowledge. Second, reference the acquisition strategy. ONEOK's $18.8 billion Magellan deal, plus Medallion and EnLink, transformed the company's footprint. Discussing how these acquisitions create integration challenges and new project opportunities shows strategic awareness. Third, demonstrate safety consciousness. Pipeline safety is a regulatory and cultural priority in midstream energy. Mentioning PHMSA regulations, TSA cybersecurity directives, or personal safety practices signals that you understand the industry's most important operating principle.

What Other Companies Should You Consider?

ONEOK competes for midstream energy intern talent with other pipeline and energy infrastructure companies:

Our energy internships summer 2027 guide maps the full landscape of midstream, upstream, and renewable energy opportunities.

FAQ

When should I apply for a ONEOK Summer 2027 internship?

Apply now. Summer 2027 postings are already appearing on ONEOK's Workday Early Careers portal, and the company states most intern positions are filled during the fall university recruiting season. Connect with ONEOK at campus career fairs this fall for the best odds.

How much do ONEOK interns earn?

ONEOK intern pay ranges from $23 to $40 per hour depending on track and experience level. Engineering roles command the highest rates ($30-$40/hr), consistent with midstream energy industry norms. Commercial and IT roles fall in the middle. Accounting and operations are at the lower end but still competitive.

How many interns does ONEOK hire?

ONEOK welcomed nearly 100 interns in its 2025 summer cohort per the company's Instagram. The program has been recognized as one of the Top 100 Internship Programs in America. The large cohort provides strong peer networking and a structured experience.

Where are ONEOK internships located?

Tulsa, Oklahoma is the corporate headquarters and primary intern location. Dallas and Houston, Texas are major secondary locations. Some engineering and terminal operator roles are at field locations including Sidney, Montana and Galena Park, Texas.

What is ONEOK pronounced?

ONEOK is pronounced ONE-oak. The company was originally named Oklahoma Natural Gas Company when founded in 1906. It was renamed ONEOK Inc. in 1980. The pronunciation is a common interview question that tests whether candidates have done basic research.

What does midstream mean?

Midstream is the infrastructure segment between oil and gas production (upstream) and refining/distribution (downstream). ONEOK gathers, processes, transports, and stores natural gas liquids across more than 60,000 miles of pipeline. Understanding this distinction shows genuine industry knowledge during interviews.

Is ONEOK a good company to work for?

Yes. Glassdoor rates ONEOK 4.0/5 across 312 reviews. The company holds an AAA MSCI ESG rating, is an S&P 500 and Fortune 500 component, and generated $33.6 billion in revenue in 2025. The Top 100 Internship recognition validates the program's quality.

Does ONEOK offer return offers to interns?

ONEOK does not publish an official conversion rate. However, the Top 100 program recognition, ~100-intern cohort size, and structured mentorship suggest a strong pipeline to full-time roles. The company's rapid expansion through acquisitions creates ongoing demand for early-career talent in engineering, commercial, and IT functions.

ONEOK's Top 100-recognized program puts you inside one of America's largest pipeline companies at a moment of historic expansion. Spend the runway building proof: a remote Externship turns interest in energy infrastructure or commercial analytics into a finished project a fall 2026 application can point at.