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 Services5.2%+1.94 pp Materials2.8%+0.73 pp Information Technology17.9%+0.59 pp Utilities3.7%+0.30 pp Real Estate3.7%+0.26 pp Consumer Discretionary7.1%+0.24 pp Consumer Staples8.9%+0.13 pp Industrials14.4%-0.54 pp Health Care16.3%-0.95 pp Energy3.8%-1.22 pp Financials16.3%-1.49 pp

2 · Industry

Inside Energy

Oil & Gas Exploration & Production0.98%-0.50 pp Oil & Gas Equipment & Services0.40%-0.36 pp Oil & Gas Refining & Marketing0.63%-0.22 pp Integrated Oil & Gas1.25%-0.16 pp Oil & Gas Storage & Transportation0.56%+0.02 pp

3 · Sub-industry

Inside Oil & Gas Exploration & Production

Oil & Gas Exploration & Production0.98%-0.462 pp

Concentrated

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

View all contributions →

Oil & Gas Exploration & Production · weight

0.98%

Industry change · 12M

-0.50 pp

Oil & Gas Exploration & Production · contribution

-0.462 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jul 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	$38.4bn	0.205%	-0.041 pp	-0.170 pp	-35.7%	No
EOG Resources → EOG	United States	$49.8bn	0.265%	-0.045 pp	-0.170 pp	-32.8%	No
ConocoPhillips → COP	United States	$66.8bn	0.355%	-0.044 pp	-0.134 pp	-16.6%	No
Diamondback Energy → FANG	United States	$17.0bn	0.091%	-0.007 pp	+0.091 pp	-21.2%	No
Devon Energy → DVN	United States	$11.2bn	0.060%	-0.019 pp	-0.078 pp	-39.3%	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.