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
1.26%
Industry change · 12M
+0.00 pp
Oil & Gas Exploration & Production · contribution
+0.000 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2018 · 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 | $70.3bn | 0.401% | +0.000 pp | +0.000 pp | +0.0% | No |
| EOG Resources → EOG | United States | $66.5bn | 0.379% | +0.000 pp | +0.000 pp | +0.0% | No |
| Occidental Petroleum → OXY | United States | $57.4bn | 0.327% | +0.000 pp | +0.000 pp | +0.0% | No |
| Devon Energy → DVN | United States | $21.7bn | 0.124% | +0.000 pp | +0.000 pp | +0.0% | No |
| EQT Corporation → EQT | United States | $5.1bn | 0.029% | +0.000 pp | +0.000 pp | +0.0% | 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.