Oil and gas field · the United States
Llano (Garden Banks 387)
Llano (Garden Banks 387) is an oil and gas field in the United States, with 22,675 boe/day of production in 2025, operated by Shell Gulf of Mexico Inc.
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 | 1994 | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Onshore or offshore | Offshore | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Operator | Shell Gulf of Mexico Inc (95.1%, of the field's production) | BSEE Data Center · Public domain · checked 24 Oct 2026 |
| Production | 22,675 boe/day (16,837 barrels of oil a day, 35,026 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
Llano (Garden Banks 387) is the 100th-largest of 319 oil and gas fields in the United States by production, with 22,675 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 | 100th of 319 |
Timeline
Dated facts about this oil and gas field from its sources, oldest first.
- Discovered
- Shell Gulf of Mexico Inc (95.1%) on record as operator
Operator and place
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.