Diamondback Energy vs Occidental Petroleum
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KIRAβs take AI analyst
I put Diamondback Energy and Occidental Petroleum side by side, using each oneβs latest annual report. Here is what stands out:
- Occidental Petroleum is the larger business, with $21.6B of revenue in fiscal 2025 against $15.0B for Diamondback Energy.
- Diamondback Energy grew revenue faster (35.8%, against β1.9%).
- Occidental Petroleum earned a higher return on the capital invested in it (4.9%, against 1.9%).
- Investors pay more for each dollar of Diamondback Energyβs earnings: a P/E of 39.4x against 9.9x for Occidental Petroleum.
Who comes out ahead
Of the 8 measures where higher (or lower) is clearly better, how many each company leads.
Diamondback Energy
FANG
3/8
Revenue growth5-year growthNet margin
Occidental Petroleum
OXY
4/8
Return on capitalReturn on equityNet debt / EBITDAShare count change
Side by side
Best in the row
| Latest fiscal year | FANG FY25 | OXY FY25 |
|---|---|---|
| Size | ||
| Market cap | $58.2B | $64.9B |
| Revenue | $15.0B | $21.6B |
| Free cash flow | β | $4.1B |
| Net income | $1.7B | $2.4B |
| Growth | ||
| Revenue growth | 35.8% | β1.9% |
| 5-year growth | 39.8% | 3.9% |
| Share count change | 35.4% | 3.4% |
| Profitability | ||
| Gross margin | β | β |
| Operating margin | 8.4% | β |
| Net margin | 11.1% | 11.0% |
| FCF margin | β | 19.0% |
| Return on capital | 1.9% | 4.9% |
| Return on equity | 4.5% | 6.7% |
| Balance sheet | ||
| Net debt | $14.4B | $20.4B |
| Net debt / EBITDA | 2.3x | 1.7x |
| Dividends and buybacks | $1.2B | $1.6B |
| Valuation & quality | ||
| P/E | 39.4x | 9.9x |
| Piotroski F-score | 4 | 4 |
Ten years
Revenue
Operating margin
Free cash flow
Return on capital
Each company's latest fiscal year; fiscal years end in different months. The best value in each row is highlighted where higher (or lower) is clearly better. Not investment advice.

