Marathon Petroleum Corporation is an American petroleum refining, marketing, and transportation company headquartered in Findlay, Ohio. Tracing its origins to The Ohio Oil Company founded in 1887, the company became the largest petroleum refinery operator in the United States following its October 2018 acquisition of Andeavor, operating 13 refineries with over 3 million barrels per calendar day of refining capacity. The company's business model encompasses crude oil refining, fuel marketing through branded locations (Marathon and ARCO), and midstream operations via majority ownership of MPLX LP, which handles gathering, processing, transportation, and logistics infrastructure. Marathon Petroleum ranked No. 41 on the 2018 Fortune 500 list and 138th on the 2020 Forbes Global 2000. Signal Plug searches live against marathonpetroleum.com's mail server to find and verify email addresses for any Marathon Petroleum Corporation employee.
Signal Plug searches live against marathonpetroleum.com's mail server — not a static database. Get a verified email for any Marathon Petroleum Corporation employee with confidence score in under 2 seconds.
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Marathon Petroleum Corporation is an American petroleum refining, marketing, and transportation company headquartered in Findlay, Ohio. Tracing its origins to The Ohio Oil Company founded in 1887, the company became the largest petroleum refinery operator in the United States following its October 2018 acquisition of Andeavor, operating 13 refineries with over 3 million barrels per calendar day of refining capacity. The company's business model encompasses crude oil refining, fuel marketing through branded locations (Marathon and ARCO), and midstream operations via majority ownership of MPLX LP, which handles gathering, processing, transportation, and logistics infrastructure. Marathon Petroleum ranked No. 41 on the 2018 Fortune 500 list and 138th on the 2020 Forbes Global 2000.
Competitive Advantage
Marathon Petroleum's origins trace back to 1887 when small Ohio oil companies banded together, making it one of the oldest continuously operating petroleum companies in the United States. The company's acquisition of Andeavor/Tesoro in 2018 immediately elevated it to the largest petroleum refinery operator in the U.S. by capacity. Marathon Petroleum's discovery of oil in Texas in 1924 marked its geographic expansion beyond its Ohio origins. The Ohio Oil Company survived the 1911 Sherman Anti-Trust Act breakup of Standard Oil and became independent, later acquiring the Marathon brand name from Transcontinental Oil. Through MPLX LP, Marathon Petroleum operates significant midstream infrastructure including gathering, processing, fractionation, and crude transportation assets beyond traditional refining.
The most commonly verified format at Marathon Petroleum Corporation:
High ConfidenceSignal Plug tests all common patterns against Marathon Petroleum Corporation's live mail server and returns whichever passes the SMTP check.
Run a live search for Marathon Petroleum Corporation →Data-driven signals to help you prospect Marathon Petroleum Corporation effectively.
Energy sector investors and analysts target Marathon Petroleum due to its dominant market position as the largest U.S. refinery operator and substantial midstream assets through MPLX LP. Supply chain and logistics companies seek partnerships for crude transportation and product distribution across its extensive infrastructure.
Primary Contact
Energy analysts
Tuesday–Thursday, 9am–11am
Signal Plug performs live SMTP verification against marathonpetroleum.com's mail server — not a static scraped database — which means results reflect the real, current state of Marathon Petroleum Corporation's email infrastructure. Here's how to run a lookup:
Create a free account
Sign up at Signal Plug in under 30 seconds. No credit card required. The Free plan includes 10 searches per month so you can test the tool with real Marathon Petroleum Corporation contacts before upgrading.
Enter the contact's name
Type the first and last name of the Marathon Petroleum Corporation employee you want to reach. Signal Plug handles all seniority levels, from C-suite to individual contributors.
Enter the domain
Use marathonpetroleum.com. Signal Plug tests all common naming patterns automatically and returns only the format that passes the SMTP check.
Get a verified result
Signal Plug returns an email address with a confidence score (0–100) and deliverability status (Valid, Risky, or Catch-all) within 2 seconds. The confidence score tells you how reliable the result is before you use it.
Export and use
One-click CSV export lets you bring Marathon Petroleum Corporation contacts into Salesforce, HubSpot, Outreach, Lemlist, or any other tool in your stack. Growth and Scale plan users can run bulk lookups across an entire list of Marathon Petroleum Corporation names in a single batch.
Marathon Petroleum Corporation competes directly with Valero Energy, Phillips 66, Chevron Phillips Chemical and others in the Energy space.
| Company | Size | Tier | Focus | Email Format |
|---|---|---|---|---|
| Marathon Petroleum Corporation | 10,001–50,000 | Petroleum Refining, Marketing, and Transportation | firstname.lastname | |
| Valero Energy | — | — | — | firstname.lastname |
| Phillips 66 | — | — | — | firstname.lastname |
| Chevron Phillips Chemical | — | — | — | firstname.lastname |
| ExxonMobil | — | — | — | firstname.lastname |
| BP | — | — | — | firstname.lastname |
Whether you're running outbound sales, recruiting, or building a partnership list, these are the roles most frequently contacted at Energy like Marathon Petroleum Corporation.
Based on Marathon Petroleum Corporation's profile, the highest-value contacts for outbound are:
Signal Plug works for any role at any seniority level at marathonpetroleum.com. If you have a name and the domain, you can find a verified email.
How well Marathon Petroleum Corporation fits a typical B2B outbound pipeline, based on available signals.
Strong Fit
Funnel Fit Score
Most email finder tools pull from static databases of scraped email addresses. These databases go stale as people change jobs and companies update their email infrastructure. Signal Plug takes a different approach: every search performs a live check against marathonpetroleum.com's mail server using SMTP verification. This means results reflect the current state of Marathon Petroleum Corporation's email system — not a cached result from months or years ago.
Signal Plug enriches every result with supporting data: a confidence score (0–100), deliverability status (Valid, Risky, or Catch-all), job title where available, and LinkedIn profile URL. This context helps you prioritize which Marathon Petroleum Corporation contacts to email first and personalize your outreach before you hit send. Plans start at $29/month for 500 searches — no annual contracts or seat fees.
Signal Plug performs a live SMTP check against marathonpetroleum.com's mail server for every query — not a static database lookup. Our platform-wide accuracy rate is 94%. Each result comes with a confidence score (0–100) so you can gauge reliability before using the address.
Free plan: 10 searches. Starter ($29/mo): 500. Growth ($149/mo): 2,000. Scale ($299/mo): 5,000. No company-specific caps.
No. Signal Plug generates and verifies emails in real time via SMTP checks — no static database of Marathon Petroleum Corporation employee emails is maintained.
Yes. Growth and Scale plan users can upload a CSV of names and run bulk lookups against marathonpetroleum.com in a single batch.
Marathon Petroleum traces its origins to The Ohio Oil Company, established in 1887 in Lima, Ohio, which was later acquired by Standard Oil and spun out as an independent company in 1911.
The company is headquartered in Findlay, Ohio, where it relocated in 1895.
Following the 2018 acquisition of Andeavor, Marathon Petroleum operates 13 refineries with over 3 million barrels per calendar day of refining capacity.
The company operates fuel stations under the Marathon and ARCO brand names across the United States.
Signal Plug searches in real time against marathonpetroleum.com's mail server to find and verify email addresses for Marathon Petroleum Corporation employees. Enter a name, enter the domain, get a verified result with a confidence score in under 2 seconds.
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