Field · the network on the US Outer Continental Shelf
ST311
ST311 is a field on the US Outer Continental Shelf, operated by Walter Oil & Gas Corporation. The map shows the facilities.
Converted: Converted from the source's figures (Jul 2025–Jun 2026). Oil equivalent by the Norwegian Offshore Directorate's rule: oil, condensate and NGL in Sm³ count equally, 1,000 Sm³ of gas = 1 Sm³ o.e. and 1 tonne of NGL = 1.9 Sm³ o.e. Converted from barrels: 1 barrel = 0.158987 m³ (42 US gallons). The source's barrels are at 60 °F and Sm³ at 15 °C; the difference is under 0.1%. Converted from Mcf: 1 Mcf (60 °F, 14.73 psia) ≈ 28.33 Sm³ (15 °C, 101.325 kPa).
Estimate: Oil equivalent by the Norwegian Offshore Directorate's rule: oil, condensate and NGL in Sm³ count equally, 1,000 Sm³ of gas = 1 Sm³ o.e. and 1 tonne of NGL = 1.9 Sm³ o.e. Converted from barrels: 1 barrel = 0.158987 m³ (42 US gallons). The source's barrels are at 60 °F and Sm³ at 15 °C; the difference is under 0.1%. Converted from Mcf: 1 Mcf (60 °F, 14.73 psia) ≈ 28.33 Sm³ (15 °C, 101.325 kPa). Per day: Sm³ o.e. × 6.29 barrels per Sm³ divided by the number of days in the period. Rounded to the nearest 10 below 1,000, the nearest 100 below 10,000 and the nearest 1,000 above that.
Attribution: Source: BOEM/BSEE Data Center, OGOR-A
The network
From owner to landfall. Links without their own label have their source in the column heading; curated and derived links are labelled at the link.
- The colour shows the content:
- Gas
- Oil
- Condensate
- CO₂
- Oil and condensate
- The line shows the source:
- pipeline in BOEM/BSEE data
- curated, with the source at the link
- possible onward route, not measured flow
- planned or not in service
The links show direction, not volume.
None of the field's leases has current owners at BOEM.
BOEM · 7 Oct 2026- The fieldST311Producing0.089 million Sm³ o.e. Jul 2025–Jun 2026operator: Walter Oil & Gas CorporationFacilities and pipelines
ST 311 A 1 facility in service
LandfallThe source does not show where the production comes ashore.
Production per month
The source's figures in the source's unit. The oil equivalents in the key figures are converted by the Norwegian Offshore Directorate's rule.
Production per monthBOEM · 7 Oct 2026
| Month | Oil bbl | Gas Mcf |
|---|---|---|
| June 2026 | 6,679 | 90,470 |
| May 2026 | 6,413 | 87,427 |
| April 2026 | 14,598 | 170,051 |
| March 2026 | 18,205 | 209,879 |
| February 2026 | 17,013 | 201,747 |
| January 2026 | 17,021 | 195,550 |
| December 2025 | 17,458 | 135,694 |
| November 2025 | 19,033 | 155,898 |
| October 2025 | 21,470 | 172,139 |
| September 2025 | 21,491 | 171,967 |
| August 2025 | 23,192 | 187,911 |
| July 2025 | 22,839 | 193,353 |
| June 2025 | 24,277 | 204,938 |
Attribution: Source: BOEM/BSEE Data Center, OGOR-A
Notes
- The production is BOEM/BSEE's OGOR-A figures per completion, summed per lease and per field for Jun 2025–Jun 2026: oil and condensate in barrels (bbl), gas in Mcf. The figures come three to four months after the production month, and BOEM marks the latest month as incomplete.
- The field operator is the operator BOEM/BSEE gives for the completions in the latest month. The lease operator is the designated operator. The operator and field of the installations are from BOEM's platform file (platmast).
- BOEM has no field outlines. The field's position is the centre of the blocks BOEM links to the field (Gulf of Mexico) or of the leases the field produces from (Pacific).
- The fields are named as in BOEM's list of nicknames. Fields without a nickname are shown with BOEM's field code (for example MC392), and in the Pacific BOEM gives only the field code (HONDO, DSCDRS).
- Owners: None of the field's leases has current owners at BOEM.
Sources
All figures and links on the page come from these sources. The licence and attribution are as each source requires. Conversions and calculations are OESA's own and labelled with the method.
- BOEM – field names and leases (Field Names Master List, Appendix A) BOEM / BSEE · 7 Oct 2026Licence: U.S. Government Work, public domain (17 U.S.C. § 105)Attribution: Source: BOEM/BSEE Data Center
- BOEM/BSEE – platforms, pipelines and lease status in the Gulf of Mexico (BOEM: Gulf of America Region; the GOA_Layers map layers and the Data Center) BOEM / BSEE · 26 Sep 2026Licence: U.S. Government Work, public domain (17 U.S.C. § 105)Attribution: Source: BOEM/BSEE Data Center. This data is not for navigational use.
- BOEM/BSEE – well production by month (OGOR-A, Gulf of Mexico) BOEM / BSEE · 7 Oct 2026Licence: U.S. Government Work, public domain (17 U.S.C. § 105)Attribution: Source: BOEM/BSEE Data Center, OGOR-A
Not in the data: Flow in each pipeline, where the gas ends up, and the buyers of oil and gas.