Observatory · observe first
Follow the allocation change
Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.
Historical time machine
Historical observation
20182026
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Energy
3 · Sub-industry
Inside Oil & Gas Exploration & Production
Oil & Gas Exploration & Production · weight
0.71%
Industry change · 12M
-0.11 pp
Oil & Gas Exploration & Production · contribution
-0.115 pp
Company participation
44%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 2025 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| ConocoPhillips → COP | United States | $109.6bn | 0.215% | -0.041 pp | -0.060 pp | -15.3% | No |
| Expand Energy → EXE | United States | $29.0bn | 0.057% | +0.009 pp | +0.057 pp | +27.1% | Yes |
| EOG Resources → EOG | United States | $58.5bn | 0.115% | -0.026 pp | -0.050 pp | -16.3% | No |
| Diamondback Energy → FANG | United States | $43.7bn | 0.086% | -0.003 pp | -0.029 pp | -11.6% | No |
| Occidental Petroleum → OXY | United States | $41.4bn | 0.081% | -0.016 pp | -0.023 pp | -15.2% | No |
| EQT Corporation → EQT | United States | $38.0bn | 0.075% | +0.008 pp | +0.015 pp | +35.5% | Yes |
| Texas Pacific Land Corporation → TPL | United States | $6.6bn | 0.013% | -0.002 pp | -0.014 pp | -45.7% | No |
| Devon Energy → DVN | United States | $23.2bn | 0.046% | -0.002 pp | -0.009 pp | +0.4% | Yes |
| APA Corporation → APA | United States | $8.9bn | 0.017% | +0.000 pp | -0.001 pp | +16.1% | Yes |
Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.