Mars-Ursa

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.

Attribution: Source: BOEM/BSEE Data Center, OGOR-A

Leases

The leases the field lies in, with the licensees as the source states them. A share in a lease is not a field share.

Rigs

The rigs the source lists on the field.

Notes

• The arrows show direction, not volume. The direction is the source's from → to for each pipeline. The source has no flow per pipeline. Pipelines without from and to in the source are shown without direction.
• The shares are per lease in the source. A lease share is not a field share, and it is not combined with the field's production.
• BOEM's shares are record title shares per lease. They are not the participation shares in the unit agreements, which are not public, and not necessarily the working interests (operating rights). The fields therefore have no ownership shares; the shares are per lease, and production by share is calculated per lease.
• The ownership history is BOEM's own: each assignment has an effective date, and a share applies from that date until the day before the next change. Shares that ended before 2020 are not included.
• The leases in the Gulf of Mexico are included when they belong to a field in BOEM's field list or have production in Jun 2025–Jun 2026. 1176 leases with current owners, most of them in the exploration term, are not included in the overview.
• 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's pipelines end at an installation or at the boundary to state waters. The route onward to shore, the pipeline owners and the capacity are not in BOEM's data. Only active pipelines of at least 10 inches for oil, gas and condensate are included. The pipeline operator is the operator BOEM gives for the segment in the pipeline file (FACIL_OPERATOR, at the latest inspection). A pipeline is linked to an installation when BOEM's platform id in the pipeline file (platform name, area and block, for example “A MC 807”) equals the platform name without the nickname in brackets, area and block in the platform file (“MC 807 A (Mars)”), and the match is unique.
• The lease status (UNIT, PRODUCTION, INITIAL …) is BOEM's word from the map layer as of 26 Sep 2026. A field is shown as producing when OGOR-A has production from the field in Jun 2026.
• 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).
• The share estimate per field is OESA's calculation: the record title share in each lease in the field, weighted by the lease's production from the field in oil equivalent (Jul 2025–Jun 2026), with the share that applied in each month. It is not the field's ownership and is not used in sums; the sums are calculated per lease.
• The rigs are from approved applications for permit to drill (APD) in the last 90 days. A permit does not mean that the rig is drilling now.

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/BSEE – applications for permit to drill with rig names (APD) BOEM / BSEE · 7 Oct 2026Licence: U.S. Government Work, public domain (17 U.S.C. § 105)Attribution: Source: BOEM/BSEE Data Center
• 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 – lease owners with designated operator (Gulf, Pacific, Alaska) BOEM / BSEE · 4 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

All sources for United States

Not in the data: Flow in each pipeline, where the gas ends up, and the buyers of oil and gas.