Oil and gas field · the United States
Appaloosa (Mississippi Canyon 503)
Appaloosa (Mississippi Canyon 503) is an oil and gas field in the United States, with 2,535 boe/day of production in 2025, operated by Eni Petroleum Co Inc (66.6%) and Llog Exploration Offshore LLC (33.4%).
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | United States | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Status | Operating | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Commodities | oil, gas (mainly oil) | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Discovered | 2007 | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Onshore or offshore | Offshore | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Operator | Eni Petroleum Co Inc (66.6%, of the field's production) | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Operator | Llog Exploration Offshore LLC (33.4%, of the field's production) | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Production | 2,535 boe/day (2,127 barrels of oil a day, 2,449 Mcf of gas a day, in 2025) | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Production | 24,132 boe/day (24,132 barrels of oil a day, no. 56 of EIA's top 100 US oil fields, oil and condensate only, gas not ranked, in 2013) | EIA Top 100 U.S. Oil and Gas Fields · Public domain · checked 24 Oct 2026 |
Research on this oil and gas field and its operator.Who owns it up to the parent company, its working-interest owners, their shares and its production by well, and an introduction to the operator.
Request researchHow it compares by production
Appaloosa (Mississippi Canyon 503) is the 263rd-largest of 319 oil and gas fields in the United States by production, with 2,535 boe/day in 2025. Ranks and totals cover the oil and gas fields in our data that report their production, not every one in existence.
| Within | Rank |
|---|---|
| United States | 263rd of 319 |
Timeline
Dated facts about this oil and gas field from its sources, oldest first.
- Discovered
- Eni Petroleum Co Inc (66.6%) and Llog Exploration Offshore LLC (33.4%) on record as operators
Operators and place
- Eni Petroleum Co IncOperator · 66.6%
- Llog Exploration Offshore LLCOperator · 33.4%
- Oil and gas fields in the United States676
- The United States: country profile
More from Eni Petroleum Co Inc
- Longhorn (Mississippi Canyon 546)27,613 boe/day in 2025
- Devils Tower (Mississippi Canyon 773)18,299 boe/day in 2025
- Pegasus (Green Canyon 385)2,020 boe/day in 2025
- Allegheny (Green Canyon 254)1,206 boe/day in 2025
Other oil and gas fields in United States
- Marcellus Shale Area1,294,997 boe/day in 2013
- Newark, East891,210 boe/day in 2013
- Wattenberg882,693 boe/day in 2025
- Eagleville850,913 boe/day in 2013
- Haynesville Shale Unit650,987 boe/day in 2013
- B-43 Area (Fayetteville Shale)468,106 boe/day in 2013
- San Juan Basin Gas Area468,019 boe/day in 2013
- Spraberry413,706 boe/day in 2013
Data on this page
- BSEE Data Center. BSEE Data Center, Public domain.
- Colorado ECMC (formerly COGCC). Colorado ECMC (formerly COGCC), Free reuse.
- Source: U.S. Energy Information Administration (Apr 2015). EIA Top 100 U.S. Oil and Gas Fields, Public domain.