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›Oil & Gas Exploration & Production›Oil & Gas Exploration & Production

1 · Sector

Weight and 12M allocation change

Information Technology26.9%+26.90 pp Health Care15.8%+15.74 pp Industrials12.3%+12.31 pp Consumer Discretionary7.4%+7.35 pp Consumer Staples7.1%+7.09 pp Communication Services4.5%+4.49 pp Materials3.3%+3.27 pp Real Estate3.1%+3.13 pp Utilities3.0%+2.97 pp Energy2.4%+2.40 pp Financials14.3%-85.64 pp

2 · Industry

Inside Energy

Oil & Gas Exploration & Production0.72%+0.72 pp Integrated Oil & Gas0.71%+0.71 pp Oil & Gas Refining & Marketing0.38%+0.38 pp Oil & Gas Storage & Transportation0.35%+0.35 pp Oil & Gas Equipment & Services0.23%+0.23 pp

3 · Sub-industry

Inside Oil & Gas Exploration & Production

Oil & Gas Exploration & Production0.72%+0.723 pp

Concentrated

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

View all contributions →

Oil & Gas Exploration & Production · weight

0.72%

Industry change · 12M

+0.72 pp

Oil & Gas Exploration & Production · contribution

+0.723 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2021 · 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	$82.2bn	0.290%	+0.150 pp	+0.290 pp	+50.7%	Yes
EOG Resources → EOG	United States	$48.7bn	0.172%	+0.089 pp	+0.172 pp	+69.7%	Yes
Occidental Petroleum → OXY	United States	$29.2bn	0.103%	+0.055 pp	+0.103 pp	+71.2%	Yes
Devon Energy → DVN	United States	$19.8bn	0.070%	+0.041 pp	+0.070 pp	+174.5%	Yes
Diamondback Energy → FANG	United States	$17.0bn	0.060%	+0.037 pp	+0.060 pp	+131.5%	Yes
APA Corporation → APA	United States	$8.2bn	0.029%	+0.029 pp	+0.029 pp	+61.4%	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.