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

Communication Services4.9%+1.57 pp Materials2.8%+0.74 pp Utilities3.7%+0.31 pp Information Technology17.7%+0.29 pp Real Estate3.7%+0.14 pp Consumer Staples8.8%+0.03 pp Health Care16.9%-0.00 pp Consumer Discretionary7.0%-0.03 pp Industrials14.5%-0.19 pp Energy3.9%-1.21 pp Financials16.1%-1.65 pp

2 · Industry

Inside Energy

Oil & Gas Exploration & Production1.03%-0.48 pp Oil & Gas Equipment & Services0.40%-0.40 pp Integrated Oil & Gas1.28%-0.19 pp Oil & Gas Refining & Marketing0.62%-0.18 pp Oil & Gas Storage & Transportation0.59%+0.04 pp

3 · Sub-industry

Inside Oil & Gas Exploration & Production

Oil & Gas Exploration & Production1.03%-0.433 pp

Concentrated

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

View all contributions →

Oil & Gas Exploration & Production · weight

1.03%

Industry change · 12M

-0.48 pp

Oil & Gas Exploration & Production · contribution

-0.433 pp

Company participation

40%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2019 · 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
Occidental Petroleum → OXY	United States	$37.6bn	0.203%	-0.082 pp	-0.186 pp	-36.9%	No
EOG Resources → EOG	United States	$54.1bn	0.291%	-0.026 pp	-0.146 pp	-24.6%	Yes
ConocoPhillips → COP	United States	$68.9bn	0.372%	-0.063 pp	-0.123 pp	-10.8%	No
Diamondback Energy → FANG	United States	$17.9bn	0.097%	+0.001 pp	+0.097 pp	-16.7%	Yes
Devon Energy → DVN	United States	$11.8bn	0.064%	-0.016 pp	-0.076 pp	-34.4%	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.