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Occidental Petroleum vs Diamondback Energy: OXY and FANG compared
Occidental Petroleum is the larger company: $8.1B of revenue in its latest quarter (Q2 2026) against $5.4B for Diamondback Energy (Q3 2026). Occidental Petroleum is growing faster (+53% against +38% a year earlier). Occidental Petroleum is more profitable, with an operating margin of 48.5% against 46.0%.
Where the money goes: OXY and FANG
Occidental Petroleum (OXY) · Q2 2026
Occidental Petroleum, Q2 2026: revenue $8.1B (+53% year over year), operating margin 48.5%, net earnings $2.8B, operating cash flow $4.3B. The chart follows the revenue to costs, profit and cash.
Diamondback Energy (FANG) · Q3 2026
Diamondback Energy, Q3 2026: revenue $5.4B (+38% year over year), operating margin 46.0%, net earnings $1.6B, operating cash flow $2.6B. The chart follows the revenue to costs, profit and cash.
| Occidental Petroleum (OXY) | Diamondback Energy (FANG) | |
|---|---|---|
| Latest quarter | Q2 2026 | Q3 2026 |
| Revenue | $8.1B | $5.4B |
| Revenue growth, Y/Y | +53% | +38% |
| Operating margin | 48.5% | 46.0% |
| Net earnings | $2.8B | $1.6B |
| Net margin | 34.6% | 29.5% |
| Operating cash flow | $4.3B | $2.6B |
| Free cash flow | $2.7B | $1.4B |
| Market value | $57.1B | $50.3B |
| P/E | 14.5× | 24.2× |
| Analysts’ mean target | $70.74 | $238.73 |
Questions
Which is bigger, Occidental Petroleum or Diamondback Energy?
Occidental Petroleum is the larger company: $8.1B of revenue in its latest quarter (Q2 2026) against $5.4B for Diamondback Energy (Q3 2026).
Is Occidental Petroleum or Diamondback Energy growing faster?
Occidental Petroleum is growing faster (+53% against +38% a year earlier).
Which is more profitable, Occidental Petroleum or Diamondback Energy?
Occidental Petroleum is more profitable, with an operating margin of 48.5% against 46.0%.
More: Occidental Petroleum earnings · how Occidental Petroleum makes money · Diamondback Energy earnings · how Diamondback Energy makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Aug 5, 2026; 10-Q filed Nov 4, 2026). Fiscal quarters can end on different dates. Not investment advice.