MRO Marathon Oil Corporation
NYSENo longer listedCommon stock
MRO was the NYSE ticker symbol of Marathon Oil Corporation. It no longer appears in current US listing files, which usually means the security was delisted, acquired, merged, or moved to a new symbol.
MRO at a glance
- Symbol
- MRO
- Company / issuer
- Marathon Oil Corporation
- Security type
- Common stock
- Last exchange
- NYSE
- Status
- No longer listed
- Seen in listing files
- Apr 2015 – Oct 2024
- Sector
- Energy
- Industry
- Oil & Gas Production
- Country
- United States
- Last reported market cap
- $14.6 billion (Oct 2024)
MRO ticker history
All listing names we have recorded under the symbol MRO, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| Marathon Oil Corporation | Common Stock | Apr 2015 | Oct 2024 |
Snapshots have gaps (notably 2018–2021, and 2015–2021 for NYSE listings), so the actual delisting date may be later than the last-seen date.
Frequently asked questions
What company has the ticker symbol MRO?
MRO was the ticker symbol of Marathon Oil Corporation on NYSE.
Is MRO still trading?
No. MRO does not appear in current US exchange listings as of Sep 2026; it was last seen in our listing snapshots in Oct 2024.
Which exchange was MRO listed on?
MRO was listed on NYSE.
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