SEC CENTRAL INDEX KEY

EOG RESOURCES INC CIK Number

The SEC Central Index Key (CIK) for EOG RESOURCES INC (EOG).

CIK (CENTRAL INDEX KEY)
0000821189
Also written as 821189 (without leading zeros).
Company
EOG RESOURCES INC
Ticker
EOG
Download EOG filings (PDF) →View on SEC EDGAR

What is a CIK number?

A CIK (Central Index Key) is the unique, permanent identifier the U.S. Securities and Exchange Commission assigns to every filer — companies, funds, and individuals — in its EDGAR system. Unlike a stock ticker, a CIK never changes: even if EOG RESOURCES INC changed its ticker or name, its CIK (0000821189) would stay the same.

That stability is why the CIK is the most reliable way to pull a company's filings programmatically. Every 10-K, 10-Q, 8-K, and Form 4 for EOG RESOURCES INC is indexed under CIK 0000821189.

CIK vs ticker — what is the difference?

  • Ticker (EOG) — exchange trading symbol; can change or be reused.
  • CIK (0000821189) — SEC filer ID; permanent, one per filer, used across all EDGAR filings.
  • Leading zeros are optional: 0000821189 and 821189 refer to the same filer.

How to use EOG RESOURCES INC's CIK

Paste CIK 0000821189 into EDGAR full-text search to see every filing, or skip the friction and download EOG filings as clean PDFs here. To look up any other company's CIK, use the CIK lookup directory.

Source: SEC EDGAR company index (sec.gov). CIK data is public.