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

Universe›Energy›Integrated Oil & Gas›Integrated Oil & Gas

1 · Sector

Weight and 12M allocation change

Materials30.1%+27.83 pp Energy2.0%-0.58 pp Communication Services2.1%-0.59 pp Utilities2.1%-0.66 pp Real Estate1.6%-0.88 pp Industrials7.7%-1.89 pp Consumer Staples4.9%-2.28 pp Consumer Discretionary8.4%-3.45 pp Health Care8.2%-4.24 pp Financials7.7%-4.88 pp Information Technology25.3%-8.39 pp

2 · Industry

Inside Energy

Oil & Gas Exploration & Production0.61%-0.19 pp Oil & Gas Storage & Transportation0.37%-0.16 pp Integrated Oil & Gas0.51%-0.11 pp Oil & Gas Refining & Marketing0.25%-0.07 pp Oil & Gas Equipment & Services0.24%-0.05 pp

3 · Sub-industry

Inside Integrated Oil & Gas

Integrated Oil & Gas0.51%-0.113 pp

Concentrated

Most of this industry's losses came from a few companies.

View all contributions →

Integrated Oil & Gas · weight

0.51%

Industry change · 12M

-0.11 pp

Integrated Oil & Gas · contribution

-0.113 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2026 · 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
Chevron Corporation → CVX	United States	$372.7bn	0.511%	-0.086 pp	-0.113 pp	+23.0%	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.