Field · the network in Brazil
Búzios_ECO
Búzios_ECO is a field in Brazil, operated by Petróleo Brasileiro S.a. - Petrobras. The map shows the owners and the facilities.
Estimate: Converted from the source's figures (Sep 2025–Aug 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. Estimate: the source gives m³ without reference conditions, and the figure is treated as Sm³. The error can be up to about 5%. ANP gives the production as an average per day in the month (m³/d and thousand m³/d). OESA has multiplied the average by the number of days in the month to get the monthly volume, assuming ANP averages over all days of the month.
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. Estimate: the source gives m³ without reference conditions, and the figure is treated as Sm³. The error can be up to about 5%. 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.
Estimate: ANP gives the production as an average per day in the month (m³/d and thousand m³/d). OESA has multiplied the average by the number of days in the month to get the monthly volume, assuming ANP averages over all days of the month.
Estimate: The field's production in oil equivalent (Sep 2025–Aug 2026) divided by the total for all fields in the source. The total for the country is over 230 of 296 fields with production in the period; 66 fields that started or stopped in the period are left out of both.
Attribution: Fonte: ANP, Produção por zona; Fonte: ANP (Agência Nacional do Petróleo, Gás Natural e Biocombustíveis)
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 ANP 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.
- PETRÓLEO BRASILEIRO S.A. - PETROBRAS operator85%Petrobras · first seen 8 Oct 2026
- CNOOC PETROLEUM BRASIL LTDA.10%first seen 8 Oct 2026
- CNODC BRASIL PETRÓLEO E GÁS LTDA.5%first seen 8 Oct 2026
- The fieldBúzios_ECOProducing49.3 million Sm³ o.e. Sep 2025–Aug 2026operator: PETRÓLEO BRASILEIRO S.A. - PETROBRASFacilities and pipelines
FPSO Almirante Tamandaré (fptam), Petrobras 78 (P-78), Petrobras 79 (P-79), Petrobras 80 (P-80), Petrobras 82 (P-82), Petrobras 83 (P-83) 6 facilities 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 monthANP · 2 Oct 2026
| Month | Oil m³ | Gas 1,000 m³ |
|---|---|---|
| August 2026 | 4,265,782 | 1,107,822 |
| July 2026 | 4,051,784 | 1,049,034 |
| June 2026 | 3,602,158 | 953,641 |
| May 2026 | 3,252,971 | 873,439 |
| April 2026 | 3,206,969 | 842,452 |
| March 2026 | 3,227,705 | 889,190 |
| February 2026 | 2,583,939 | 703,950 |
| January 2026 | 3,188,537 | 869,513 |
| December 2025 | 2,954,808 | 809,510 |
| November 2025 | 2,622,735 | 717,798 |
| October 2025 | 3,221,674 | 870,575 |
| September 2025 | 2,720,716 | 731,496 |
| August 2025 | 2,992,668 | 819,257 |
Attribution: Fonte: ANP, Produção por zona
Contracts
The contracts the field lies in, with the licensees as the source states them. A share in a contract is not a field share.
ContractsANP · 1 Jul 2026
| Name | Type | Operator | Licensees |
|---|---|---|---|
| Búzios_EXC | contract | PETRÓLEO BRASILEIRO S.A. - PETROBRAS | PETRÓLEO BRASILEIRO S.A. - PETROBRAS 85%, CNOOC PETROLEUM BRASIL LTDA. 10%, CNODC BRASIL PETRÓLEO E GÁS LTDA. 5% |
Rigs
The rigs the source lists on the field.
RigsANP · 2 Oct 2026
| Rig | Well | Spudded | Owner |
|---|---|---|---|
| Amaralina Star | – | – | – |
| Atlantic Zonda | – | – | – |
| Brava Star | – | – | – |
| Carolina | – | – | – |
| Etesco Takatsugu J | – | – | – |
| SSV Victoria | – | – | – |
| Valaris DS-4 | – | – | – |
| West Auriga | – | – | – |
| West Carina | – | – | – |
| West Jupiter | – | – | – |
| West Polaris | – | – | – |
| West Tellus | – | – | – |
Notes
- The figures are shown as ANP states them. Production by ownership share (share × production) is OESA's own calculation, not ANP's figures.
- ANP only publishes the current distribution of shares. OESA keeps its own snapshots from 8 Oct 2026; changes before that are unknown.
- The production is ANP's «Produção por zona» per field and month (Aug 2025–Aug 2026): oil and condensate in m³, gas («Gás total», associated and non-associated gas) in 1,000 m³. ANP gives averages per day; OESA has multiplied by the number of days in the month. The gas is gross produced gas. Gas that is reinjected is a separate column at ANP and is not subtracted. The oil equivalent is therefore higher than with sales gas, which the Norwegian Offshore Directorate uses for Norway.
- ANP splits some fields into several contract areas (for example BÚZIOS and BÚZIOS_ECO). The same well can appear in several areas, but ANP gives a separate part of the production for each area, and OESA only adds up what ANP gives per area.
- The contracts (relação de concessionários) have their own participant shares per contract. They are not field shares and are never combined with the field's production.
- 6 non-contracted areas (AnC_*, área não contratada) have production at ANP but no licensee. Their production is included in the country total but attributed to no one.
- Facilities and pipelines are ANP's map layers (GeoANP) as stored by OESA on 26 Sep 2026 and 28 Sep 2026. Operator and owner are given as ANP writes the name, without CNPJ, and are not merged with the companies holding shares.
- The rigs are ANP's list of rigs in operation per field in 2026, with the rig operator. The list gives no well or date.
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.
- ANP – concessionaires by field Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP) · 2 Oct 2026Licence: Dados abertos (Decreto nº 8.777/2016, art. 2º, III): “disponibilizados sob licença aberta que permita sua livre utilização, consumo ou cruzamento, limitando-se a creditar a autoria ou a fonte”Attribution: Fonte: ANP (Agência Nacional do Petróleo, Gás Natural e Biocombustíveis)
- ANP GeoANP – fields, blocks, facilities, wells and pipelines (WFS) Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP) · 26 Sep 2026Licence: Dados abertos (Decreto nº 8.777/2016, art. 2º, III): “disponibilizados sob licença aberta que permita sua livre utilização, consumo ou cruzamento, limitando-se a creditar a autoria ou a fonte”Attribution: Fonte: ANP (GeoANP)
- ANP – production by well, zone and field Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP) · 2 Oct 2026Licence: Dados abertos (Decreto nº 8.777/2016, art. 2º, III): “disponibilizados sob licença aberta que permita sua livre utilização, consumo ou cruzamento, limitando-se a creditar a autoria ou a fonte”Attribution: Fonte: ANP, Produção por zona
- ANP – all active contracts with shares Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP) · 1 Jul 2026Licence: Dados abertos (Decreto nº 8.777/2016, art. 2º, III): “disponibilizados sob licença aberta que permita sua livre utilização, consumo ou cruzamento, limitando-se a creditar a autoria ou a fonte”Attribution: Fonte: ANP
- ANP – rigs in operation by field Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP) · 2 Oct 2026Licence: Dados abertos (Decreto nº 8.777/2016, art. 2º, III): “disponibilizados sob licença aberta que permita sua livre utilização, consumo ou cruzamento, limitando-se a creditar a autoria ou a fonte”Attribution: Fonte: ANP
Not in the data: Flow in each pipeline, where the gas ends up, and the buyers of oil and gas.