Eog Resources vs Diamondback Energy (EOG vs FANG)
Side by side from their SEC filings: revenue, margins, growth, returns and valuation, plus short interest, insider activity and institutional ownership.
Eog Resources is the larger company by revenue ($22.6B vs $15.0B) and market value ($71.4B vs $51.6B). Diamondback Energy has grown revenue faster over the last 4 fiscal years (+122.7% cumulative vs +21.4%). Eog Resources runs the higher operating margin (28.2% vs 8.4%). Eog Resources trades at the lower trailing P/E (13.2x vs 189.1x).
About Eog Resources
EOG Resources Inc explores, develops, produces, and markets crude oil, natural gas liquids, and natural gas primarily in the United States, Trinidad and Tobago, and select international areas including Bahrain and the United Arab Emirates. The company operates in major U.S. basins such as the Delaware Basin, South Texas, Appalachian Basin, and Rocky Mountain area, focusing on crude oil and natural gas plays. EOG also markets its production through pipelines and local markets, selling crude oil, natural gas liquids, and purity products at prevailing market prices.
About Diamondback Energy
Diamondback Energy, Inc. is an oil and natural gas company engaged in the exploration, development, and production of oil, natural gas, and natural gas liquids. The company operates primarily in the Midland Basin and Delaware Basin regions. It serves customers involved in the energy sector by supplying these natural resources.
Head to head (EOG FY2025 vs FANG FY2025)
| Metric | EOGFY2025 | FANGFY2025 |
|---|---|---|
| Revenue | $22.63B | $15.03B |
| Revenue growth (YoY) | -4.5% | 35.8% |
| Gross margin | — | — |
| Operating margin | 28.2% | 8.4% |
| Net margin | 22.0% | 11.1% |
| Net income | $4.98B | $1.66B |
| Diluted EPS | $9.12 | $5.73 |
| FCF margin | — | — |
| ROE | 16.7% | 3.9% |
| Debt / equity | 0.3× | 0.3× |
| Market cap | $71.43B | $51.59B |
| P/E (TTM) | 13.2× | 189.1× |
Fundamentals are from each company’s SEC filings (EOG FY2025, FANG FY2025). P/E and market cap are derived from recent market prices and update daily.
Five-year trend (as reported)
| Revenue | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
| EOG | $18.64B | $25.70B | $24.19B | $23.70B | $22.63B |
| FANG | $6.75B | $9.57B | $8.41B | $11.07B | $15.03B |
Peer standing
Where each company ranks among the 61 oil and gas companies, on the same scale. Each figure is ranked only against peers that report it. Percentiles describe position in the distribution, not a rating.
| Metric | EOG | FANG |
|---|---|---|
| Operating margin | 28.2%71st percentile of 50 | 8.4%41st percentile of 50 |
| Net margin | 22.0%81st percentile of 58 | 11.1%49th percentile of 58 |
| Revenue growth (YoY) | -4.5%29th percentile of 59 | +35.8%78th percentile of 59 |
| ROE | 16.7%85th percentile of 49 | 3.9%40th percentile of 49 |
| P/E (TTM) | 13.2×49th percentile of 40 | 189.1×Highest of 40 |
| Debt / equity | 0.27×22nd percentile of 37 | 0.32×36th percentile of 37 |
| Short interest (days to cover) | 3.57d51st percentile of 60 | 3.72d53rd percentile of 60 |
Short interest
| FINRA settlement data | EOG | FANG |
|---|---|---|
| Shares sold short | 19.0M | 10.0M |
| Change vs prior settlement | +2.7% | +6.8% |
| Days to cover | 3.57 | 3.72 |
| As of settlement | 2026-06-30 | 2026-06-30 |
Source: FINRA Consolidated Short Interest. FINRA is the owner and source of the FINRA-supplied data; republishing or redistributing it is not permitted. Not presented as a percentage of float. No FINRA endorsement of this product is implied.
Insider activity (last 90 days)
| Form 4 open-market activity | EOG | FANG |
|---|---|---|
| Buys | 0 | 0 |
| Sells | 1 ($256,953) | 23 ($2.07B) |
Open-market purchases and sales reported on SEC Form 4 (grants, exercises and tax withholding excluded). For context, about 16% of covered companies saw any open-market insider buy in a 90-day window.
Held by the same investors
7 tracked 13F managers hold both Eog Resources and Diamondback Energy as of their latest quarterly filings: AQR Capital Management, Citadel Advisors, D. E. Shaw, Gotham Asset Management, Millennium Management, Two Sigma Investments, Yacktman Asset Management. See which superinvestors hold your own portfolio with the smart money checker.
Go deeper
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Data sourced from SEC EDGAR (public domain). Figures are as-reported and may be unaudited or restated; verify against the source filings before relying on them. Comparisons are descriptive (higher or lower on a reported figure), not a rating or a recommendation. Informational only. Not investment advice.