Oil and gas field · the United States
South Marsh Island 73
South Marsh Island 73 is an oil and gas field in the United States, with 2,808 boe/day of production in 2025, operated by Byron Energy Inc (75.5%) and W & T Offshore Inc (24.5%).
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 |
| Onshore or offshore | Offshore | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Operator | Byron Energy Inc (75.5%, of the field's production) | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Operator | W & T Offshore Inc (24.5%, of the field's production) | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Production | 2,808 boe/day (2,321 barrels of oil a day, 2,927 Mcf of gas a day, in 2025) | BSEE Data Center · 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
South Marsh Island 73 is the 257th-largest of 319 oil and gas fields in the United States by production, with 2,808 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 | 257th of 319 |
Operators and place
- Byron Energy IncOperator · 75.5%
- W & T Offshore IncOperator · 24.5%
- Oil and gas fields in the United States676
- The United States: country profile
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.