Direct Answer
SEC EDGAR classifies Diamondback Energy under SIC code 1311 (Crude Petroleum & Natural Gas). Among Swoopr's S&P 500 Equal Weight companies, 43 others share that classification; by latest reported revenue, Diamondback Energy ranks 4 of 44. A filing classification is a starting point: a company's real competitors depend on its segments, which its 10-K describes.
How Does Diamondback Energy Compare With Its Peers?
| Company | Revenue (latest FY) | Revenue growth | Operating margin | Net margin |
|---|---|---|---|---|
| EOG Resources (EOG) | $22.6 billion FY2025 | -4.5% | 28.2% | 22.0% |
| Occidental Petroleum (OXY) | $21.6 billion FY2025 | -1.9% | n/a | 11.0% |
| Devon Energy (DVN) | $17.2 billion FY2025 | 7.8% | n/a | 15.4% |
| Diamondback Energy (FANG) | $15.0 billion FY2025 | 35.8% | 8.4% | 10.3% |
| Expand Energy (EXE) | $12.1 billion FY2025 | 186.3% | 20.4% | 15.0% |
| APA Corporation (APA) | $9.2 billion FY2025 | -5.3% | n/a | 15.6% |
| EQT Corporation (EQT) | $8.6 billion FY2025 | 63.9% | 37.6% | 23.6% |
| Antero Resources Corporation (AR) | $5.3 billion FY2025 | 22.0% | 16.7% | 12.8% |
| Permian Resources Corporation (PR) | $5.1 billion FY2025 | 1.3% | 28.9% | 0.0% |
| Chord Energy Corporation (CHRD) | $4.9 billion FY2025 | -7.1% | 4.0% | 0.9% |
| Matador Resources Company (MTDR) | $3.7 billion FY2025 | 5.5% | 33.2% | 20.5% |
| Range Resources Corporation (RRC) | $3.1 billion FY2025 | 28.9% | n/a | 21.1% |
| Murphy Oil Corporation (MUR) | $2.7 billion FY2025 | -10.2% | 11.1% | 3.8% |
| CNX Resources Corporation (CNX) | $2.2 billion FY2025 | 76.8% | n/a | 28.3% |
| Diversified Energy Company (DEC) | $1.8 billion FY2025 | 141.5% | 29.2% | 18.6% |
| Viper Energy Inc. (VNOM) | $1.4 billion FY2025 | 62.0% | -10.0% | -14.8% |
| BKV Corporation (BKV) | $1.1 billion FY2025 | 9.9% | 26.6% | 15.7% |
| Tetra Technologies Inc. (TTI) | $631 million FY2025 | 5.3% | 8.8% | 0.5% |
| W&T Offshore Inc. (WTI) | $501 million FY2025 | -4.5% | -10.5% | -29.9% |
| Granite Ridge Resources Inc. (GRNT) | $450 million FY2025 | 18.5% | 10.3% | 5.4% |
| Riley Exploration Permian Inc. (REPX) | $392 million FY2025 | -4.4% | 34.0% | 41.0% |
| VAALCO Energy Inc. (EGY) | $359 million FY2025 | -25.0% | -5.7% | -11.5% |
| Infinity Natural Resources Inc. (INR) | $356 million FY2025 | 37.6% | 3.3% | 3.9% |
| Ring Energy Inc. (REI) | $307 million FY2025 | -16.1% | -11.2% | -11.3% |
| Vitesse Energy Inc. (VTS) | $274 million FY2025 | 13.2% | 6.3% | 9.2% |
| Amplify Energy Corp. (AMPY) | $263 million FY2025 | -10.6% | 29.2% | 16.7% |
| Prairie Operating Co. (PROP) | $242 million FY2025 | 2943.8% | 27.1% | 13.3% |
| PrimeEnergy Resources Corporation (PNRG) | $189 million FY2025 | -20.5% | n/a | 13.9% |
| Battalion Oil Corporation (BATL) | $166 million FY2025 | -14.4% | -4.0% | 7.2% |
| SandRidge Energy Inc. (SD) | $156 million FY2025 | 24.8% | 39.0% | 44.9% |
| Evolution Petroleum Corporation Inc. (EPM) | $86 million FY2025 | -0.0% | 4.9% | 1.7% |
| Epsilon Energy Ltd. (EPSN) | $52 million FY2025 | 63.7% | -20.4% | -11.2% |
| Pedevco Corp. (PED) | $46 million FY2025 | 15.7% | -17.2% | -22.6% |
| Empire Petroleum Corporation (EP) | $34 million FY2025 | -21.6% | -208.5% | -210.7% |
| AleAnna Inc. (ANNA) | $25 million FY2025 | 1663.0% | 11.6% | 11.5% |
| Barnwell Industries Inc. (BRN) | $14 million FY2025 | -24.2% | 0.2% | -51.9% |
| Big Sky Industrial Inc. (BSIN) | $7 million FY2025 | -64.3% | -195.3% | -195.5% |
| Mexco Energy Corporation (MXC) | $7 million FY2026 | -8.1% | 19.4% | 19.9% |
| Arcadia Biosciences Inc. (RKDA) | $5 million FY2025 | -3.7% | -51.5% | -48.1% |
| New Era Energy & Digital Inc. (NUAI) | $885,400 FY2025 | 66.2% | -2767.5% | -3341.5% |
| CKX Lands Inc. (CKX) | $838,543 FY2025 | -44.9% | 434.2% | 359.0% |
| Abundia Global Impact Group Inc. (AGIG) | $410,632 FY2025 | -26.7% | -7000.8% | -7172.4% |
| New Concept Energy Inc (GBR) | $155,000 FY2025 | 6.2% | -171.0% | -29.7% |
| Sable Offshore Corp. (SOC) | $0 FY2025 | n/a | n/a | n/a |
Revenue growth compares each company's latest fiscal year with the one before. Fiscal years do not always end on the same date, so treat close comparisons with care.
How Does Diamondback Energy Rank Among All SEC Filers in Its Industry Code?
43 companies with annual reports in Swoopr's SEC dataset share SIC code 1311 (Crude Petroleum & Natural Gas), a wider group than the S&P 500 Equal Weight companies above. Ranks run from 1 (highest) and use each company's latest fiscal year, in U.S. dollars.
| Measure | Diamondback Energy | Median of filers | Rank |
|---|---|---|---|
| Revenue | $15.0 billion | $359 million | 4 of 43 |
| Revenue growth | 35.8% | 5.3% | 11 of 43 |
| Operating margin | 8.4% | 8.4% | 19 of 37 |
| Net margin | 10.3% | 9.2% | 21 of 43 |
A SIC code reflects the filer's main business as the SEC records it, so the group mixes companies of very different size; the median is a better guide than the average, and a rank near the top by revenue says nothing about quality.
Where These Numbers Come From
Every figure on this page is a value Diamondback Energy reported in its own SEC filings, read from the SEC's XBRL data (accession 0001539838-26-000010 for fiscal year 2025). Ratios are computed from those reported values. Figures were retrieved on October 7, 2026; a later amendment or a new annual report can change them, and the filing itself always takes precedence over this summary.
Each fiscal year is labeled by the calendar year in which it ended, so a company that names the same period differently in its own filings (many retailers whose year ends in January) may use another label. A year is left out of the table when the SEC data set holds no value for it. A figure shown as "Not reported" means the company did not file a value under the standard tag Swoopr reads, not that the amount was zero. This page is educational and describes reported history only; it is not a forecast or a recommendation.
Frequently Asked Questions
Who are Diamondback Energy's competitors?
Companies sharing Diamondback Energy's SEC classification (SIC code 1311 (Crude Petroleum & Natural Gas)) include EOG Resources (EOG), Occidental Petroleum (OXY), Devon Energy (DVN), Expand Energy (EXE), APA Corporation (APA). Its 10-K names the competitors it considers most relevant.
How does Diamondback Energy compare with its peers on margins?
Diamondback Energy's fiscal 2025 operating margin was 8.4%, against a peer median of 7.5%.
How are these peers chosen?
By the SEC Standard Industrial Classification code each company files under, within Swoopr's S&P 500 Equal Weight company set, falling back to the two-digit major group when fewer than two companies share the exact code. Classification codes are broad, so read the peer list as a screen, not a verdict.
How does Diamondback Energy rank among all companies in its SEC industry?
Among 43 SEC filers under SIC code 1311, Diamondback Energy ranks 4 by latest revenue, and 19 of 37 by operating margin (8.4% against a median of 8.4%).