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

Latest available · not live

20182026

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

1 · Sector

Weight and 12M allocation change

Information Technology43.1%+4.93 pp Energy3.8%+1.55 pp Health Care10.6%+0.26 pp Materials1.9%-0.22 pp Communication Services2.1%-0.27 pp Real Estate1.8%-0.35 pp Industrials9.1%-0.58 pp Utilities2.1%-0.61 pp Consumer Staples5.4%-0.78 pp Consumer Discretionary10.3%-1.78 pp Financials9.7%-2.16 pp

2 · Industry

Inside Energy

Integrated Oil & Gas1.80%+1.26 pp Oil & Gas Refining & Marketing0.55%+0.21 pp Oil & Gas Exploration & Production0.78%+0.05 pp Oil & Gas Equipment & Services0.26%+0.03 pp Oil & Gas Storage & Transportation0.44%-0.00 pp

3 · Sub-industry

Inside Integrated Oil & Gas

Integrated Oil & Gas1.80%+1.265 pp

Concentrated

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

View all contributions →

Integrated Oil & Gas · weight

1.80%

Industry change · 12M

+1.26 pp

Integrated Oil & Gas · contribution

+1.265 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 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
ExxonMobil → XOM	United States	$669.2bn	1.124%	+1.124 pp	+1.124 pp	+48.5%	Yes
Chevron Corporation → CVX	United States	$403.5bn	0.678%	+0.104 pp	+0.141 pp	+36.7%	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.