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
1.28%
Industry change · 12M
+0.68 pp
Oil & Gas Exploration & Production · contribution
+0.685 pp
Company participation
67%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2022 · 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 | $139.3bn | 0.499% | -0.025 pp | +0.250 pp | +103.8% | Yes |
| Occidental Petroleum → OXY | United States | $66.1bn | 0.237% | +0.003 pp | +0.156 pp | +177.8% | Yes |
| EOG Resources → EOG | United States | $71.1bn | 0.254% | -0.034 pp | +0.123 pp | +92.8% | Yes |
| Devon Energy → DVN | United States | $46.2bn | 0.165% | -0.013 pp | +0.099 pp | +156.1% | Yes |
| Diamondback Energy → FANG | United States | $23.1bn | 0.083% | -0.014 pp | +0.036 pp | +82.7% | No |
| APA Corporation → APA | United States | $12.8bn | 0.046% | -0.012 pp | +0.021 pp | +103.3% | No |
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.