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Estimated Oil and Gas Reserves

Estimated Oil and Gas Reserves,
Gulf of America OCS Region, December 31, 2023
Available Files for Downloading

Files listed in the table below are for the Gulf of America OCS Region only. Download a copy of the file you want by clicking on the Zipped File Name. The Zipped Excel Files are in spreadsheet format and the Zipped Access Files are in a database format. For additional information, visit FAQ (Frequently Asked Questions) about importing files.

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Estimated Oil and Gas Reserves,
Gulf of America OCS Region, December 31, 2023

BOEM 2026-010

Table/Figure Name

Table/Figure Description

Zipped File Names

Excel File Name

2023-Table 1, Public

Estimated oil and gas reserves for 1,336 fields by area, December 31, 2023.

2023 Tables xlsx Public.zip

2023 Tables xlsx Public.xlsx

2023-Table 2, Public

Description of deposit-size classes.

2023 Tables xlsx Public.zip

2023 Tables xlsx Public.xlsx

2023-Table 4 Final

A listing of Gulf of America fields by rank order, based on Original BOE reserves, 1,336 fields.

2023 Tables xlsx Public.zip

2023 Tables xlsx Public.xlsx

2023 Table 5 Final

A listing of Gulf of America Fields by rank order, based on Remaining BOE reserves, 1,336 fields.

2023 Tables xlsx Public.zip

2023 Tables xlsx Public.xlsx

2023-Table 8

Summary and comparison of oil and gas reserves as of December 31, 2019 and December 31, 2023 and summary of contingent resources in the Deepwater Gulf of America as of December 31, 2023.

2023 Tables xlsx Public.zip

2023 Tables xlsx Public.xlsx

2023-Table 9

Oil and gas reserves and cumulative production at end of year, 1975-2023.

2023 Tables xlsx Public.zip

2023 Tables xlsx Public.xlsx

HIST - 2023

Reserve History for Fields

2023 Tables xlsx Public.zip

2023 Tables xlsx Public.xlsx

Figure 1 - GOA Cumulative Production and BOEM Mean Remaining Reserves Estimates

GOA Cumulative Production and BOEM Mean Remaining Reserves Estimates

2023 Figures.zip

Figure 1 - GOA Cumulative Production and BOEM Mean Remaining Reserves Estimates.xlsx

Figure 2 - BOEM Reserves Classification Framework

BOEM Reserves Classification Framework

2023 Figures.zip

Figure 2 - BOEM Reserves Classification Framework.xlsx

Figure 3 - Change in Uncertainty & Examples of Assessment Methods over a Reservoir’s Life Cycle

Change in Uncertainty & Examples of Assessment Methods over a Reservoir’s Life Cycle

2023 Figures.zip

Figure 3 - Change in Uncertainty & Examples of Assessment Methods over a Reservoir’s Life Cycle.xlsx

Figure 4 - GOA U.S. Outer Continental Shelf

Map of GOA U.S. Outer Continental Shelf

2023 Figures.zip

Figure 4 - GOA U.S. Outer Continental Shelf.xlsx

Figure 5-6 - Oil and Gas Fields by Water Depth

Map of Oil and Gas Fields by Water Depth

2023 Figures.zip

Figure 5-6 - Oil and Gas Fields by Water Depth.xlsx

Figure 7-9 - Field Size Distributions

Field-size Distribution of All Fields; of Oil Fields; of Gas Fields.

2023 Figures.zip

Figure 7-9 - Field Size Distributions.xlsx

Figure 10 - Cumulative Percent Original Reserves versus Rank Order of Field Size

Cumulative percent original reserves versus rank order of field size.

2023 Figures.zip

Figure 10 - Cumulative Percent Original Reserves versus Rank Order of Field Size.xlsx

Figure 11-12 - Largest Fields by Original Reserves

Graph of largest 20 fields ranked by Original Reserves. Map of largest 50 fields displayed by Original Reserves.

2023 Figures.zip

Figure 11-12 - Largest Fields by Original Reserves.xlsx

Figure 13-14 - Largest fields ranked in order by Remaining Reserves

Reservoir-size distributions, combination reservoirs; oil reservoirs; gas reservoirs.

2023 Figures.zip

Figure 13-14 - Largest fields ranked in order by Remaining Reserves.xlsx

Figure 15-17 Reservoir Size Distributions

Reservoir-size distributions, combination reservoirs; oil reservoirs; gas reservoirs.

2023 Figures.zip

Figure 15-17 Reservoir Size Distributions.xlsx

Figure 18-28 Discovery Patterns for Exploratory Wells

Exploratory Wells drilled by water depth and by year. Displayed in chart, graph, and map views.

2023 Figures.zip

Figure 18-28 Discovery Patterns for Exploratory Wells.xlsx

Figure 29-39 Development Wells

Development Wells drilled by water depth and by year. Displayed in chart, graph, and map views.

2023 Figures.zip

Figure 29-39 Development Wells.xlsx

Figure 40 - Original Reserves Discovered by Year on the Shelf vs Slope

Original Reserves Discovered by Year on the Shelf vs Slope

2023 Figures.zip

Figure 40 - Original Reserves Discovered by Year on the Shelf vs Slope.xlsx

Figure 41-43 2023 Annual Production

Annual oil and gas production.

2023 Figures.zip

Figure 41-43 2023 Annual Production.xlsx

Figure 44-45_Pleistocene

Pleistocene Reserves
Shelf <= 200m (656 ft) and
Pleistocene Reserves
Slope > 200m (656 ft)

2023 Figures.zip

Figure 44-45_Pleistocene.xlsx

Figure 46-47_Pliocene

Pliocene Reserves
Shelf <= 200m (656 ft) and
Pliocene Reserves
Slope > 200m (656 ft)

2023 Figures.zip

Figure 46-47_Pliocene.xlsx

Figure 48-49_Upper Miocene

Upper Miocene Reserves
Shelf <= 200m (656 ft) and
Upper Miocene Reserves
Slope > 200m (656 ft)

2023 Figures.zip

Figure 48-49_Upper Miocene.xlsx

Figure 50-51_Middle Miocene

Middle Miocene Reserves
Shelf <= 200m (656 ft) and
Middle Miocene Reserves
Slope > 200m (656 ft)

2023 Figures.zip

Figure 50-51_Middle Miocene.xlsx

Figure 52-53_Lower Miocene

Lower Miocene Reserves
Shelf <= 200m (656 ft) and
Lower Miocene Reserves
Slope > 200m (656 ft)

2023 Figures.zip

Figure 52-53_Lower Miocene.xlsx

Figure 54_LowerTertiary

Lower Tertiary Reserves
Slope > 200m (656 ft)

2023 Figures.zip

Figure 54_LowerTertiary.xlsx

Figure 55_James

James Reserves
Shelf <= 200m (656 ft) and

2023 Figures.zip

Figure 55_James.xlsx

Figure 56-57_Norphlet

Norphlet Reserves
Shelf <= 200m (656 ft) and
Norphlet Reserves
Slope > 200m (656 ft)

2023 Figures.zip

Figure 56-57_Norphlet.xlsx

Figure 58-59 - Oil and Gas Reserves and Cumulative Production at End of Year 1975-2023

GOA Slope Contingent Resources on Active Leases and non-leased acreage. Oil and Gas Reserves and Cumulative Production at End of Year, 1975-2023

2023 Figures.zip

Figure 58-59 - Oil and Gas Reserves and Cumulative Production at End of Year 1975-2023.xlsx

2023 Hist.accdb

Access database of reserve history for fields by field and year.

2023 Hist.zip

N/A

2023 FldMoPro.zip

Access database of field monthly production

2023 FldMoPro.zip

N/A