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National oilwell Headquarters & Office Locations

Verified data Oil Companies 31,605 employees 142 offices worldwide

Headquarters: Houston, Texas, United States, Houston, Texas 77009, United States

Data last updated August 2026 · Sourced via GraphIQ

Headquarters
Houston, TX
United States
Total offices
142
across 8 countries
Employees
31,605
est. 2026

National oilwell headquarters details

Houston, Texas, United States

Houston

Texas

77009

United States

1862

All National oilwell office locations

142 total
City State / region Country Type
Houston HQ Texas United States Headquarters

About National oilwell

National oilwell (New York Stock Exchange (NYSE): NOV) is headquartered in Houston, Texas, United States. Founded in 1862, the company operates across 8 countries with approximately 31,605 employees worldwide.

Where is National oilwell's main office?

National oilwell's main headquarters office is located at Houston, Texas, United States, Houston, Texas 77009. This serves as the company's primary corporate address and is home to its executive leadership team.

National oilwell regional offices

Beyond its headquarters in Houston, National oilwell maintains 142 offices across 8 countries. Regional offices span 8 countries.

National oilwell contact information

The main switchboard for National oilwell headquarters can be reached at 13462233000. For investor relations, visit nov.com/investor-relations.

What does National oilwell do?

NOV delivers technology-driven solutions to empower the global energy industry. For more than 150 years, NOV has pioneered innovations that enable its customers to safely produce abundant energy while minimizing environmental impact. The energy industry depends on NOV’s deep expertise and technology to continually improve oilfield operations and assist in efforts to advance the energy transition towards a more sustainable future. NOV powers the industry that powers the world.

Frequently asked questions

Where is National oilwell headquarters?

National oilwell's headquarters is located at Houston, Texas, United States, Houston, Texas 77009, United States.

How many offices does National oilwell have?

National oilwell operates 142 offices across 8 countries as of 2026.

What is National oilwell's corporate address?

The official corporate address is Houston, Texas, United States, Houston, Texas 77009.

When was National oilwell founded?

National oilwell was founded in 1862 and has grown to employ approximately 31,605 people worldwide.

What is National oilwell's phone number?

The main phone number for National oilwell headquarters is 13462233000.

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