Tesoro Corporation

tsocorp.com

oil & energy

tsocorp.com

San Antonio, Texas, United States

1001-5000 employees

102000 revenue

LinkedIn Profile

About Tesoro Corporation

refining & marketing petroleum products, energy, oil industry assets, refinery operations, energy sector, gasoline and diesel, oil growth, refinery location diversity, oil exports, international petroleum markets, retail, oil assets, oil industry market share, crude oil processing, oil industry technology, oil strategy, independent refiner, oil export opportunities, oil capacity, oil supply chain optimization

Tesoro Corporation's Tech Stack

Email

Microsoft Office 365

Other

Remote

Decision Makers at Tesoro Corporation

1 contact

Pete Kleffner

Director Business Solutions, IT

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2 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

Tesoro Corporation uses Microsoft Office 365, Remote among other technologies. Use StackWho to identify the right decision-maker email for targeted sales outreach, recruiting, or partnership development.

Tesoro Corporation's Position in the StackWho Database

• Tesoro Corporation is 1 of 4,031 oil & energy companies tracked in StackWho.
• 3,985 oil & energy companies in our database have verified decision-maker emails (99% of the cohort).
• 22,781 companies in Texas are in the StackWho database.
• 239 oil & energy companies are in the 1001-5000 employee range (same size as Tesoro Corporation).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated July 2026.

Frequently Asked Questions

What technology does Tesoro Corporation use?

Tesoro Corporation uses Microsoft Office 365, Remote. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Tesoro Corporation?

StackWho has verified email addresses for 1 decision maker at Tesoro Corporation. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Tesoro Corporation directly for sales, recruiting, or partnerships.

What industry is Tesoro Corporation in?

Tesoro Corporation operates in the oil & energy industry, headquartered in San Antonio, Texas, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Tesoro Corporation's contact data?

Yes. StackWho Pro members can export decision maker contact data for Tesoro Corporation and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.