Field & Reserves Information

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Data Center >>
Field & Reserves Information

Reserves Information includes information on active and expired fields and leases in the Gulf of America. Field data available includes leases assigned to each field, Energy Information Administration (EIA) field code number, and cumulative field production. Lease data available includes OCS blocks, operators, effective date of lease in field, expired lease status, and date and portion of lease within the field.

Field & Reserves - Full Page

ASCII Downloads

Please read our disclaimer prior to downloading files. For additional information, visit FAQ (Frequently Asked Questions) about importing files. For a complete record layout and associated data definitions click on the File Name of interest.

File Name

Last Updated

Fixed

Delimit

Description

Field Names Master List Part One

6/1/2026 3:56:21 PM

Fixed

Delimit

Field Name Master List- Field Lease Data

Field Names Master List Part Two

6/1/2026 3:56:40 PM

Fixed

Delimit

Field Name Master List - Field Lease Production Available through December 2025

Appendix A

6/1/2026 3:56:19 PM

Fixed

Delimit

Appendix A - Area/Block to Field Index

Appendix B

6/1/2026 3:56:19 PM

Fixed

Delimit

Appendix B - Lease to Field Index

Appendix C

6/1/2026 3:56:20 PM

Fixed

Delimit

Appendix C - Operator Name to Field Index