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 Technology29.7%+2.54 pp Health Care16.7%+0.60 pp Energy2.3%+0.44 pp Real Estate3.4%+0.43 pp Consumer Discretionary7.8%+0.36 pp Utilities3.1%+0.17 pp Materials3.3%+0.15 pp Financials12.9%-0.47 pp Consumer Staples7.2%-0.68 pp Communication Services3.6%-1.42 pp Industrials10.0%-2.13 pp

2 · Industry

Inside Energy

Oil & Gas Exploration & Production0.75%+0.34 pp Integrated Oil & Gas0.72%+0.09 pp Oil & Gas Equipment & Services0.20%+0.01 pp Oil & Gas Storage & Transportation0.30%+0.01 pp Oil & Gas Refining & Marketing0.33%+0.00 pp

3 · Sub-industry

Inside Oil & Gas Exploration & Production

Oil & Gas Exploration & Production0.75%+0.336 pp

Concentrated

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

View all contributions →

Oil & Gas Exploration & Production · weight

0.75%

Industry change · 12M

+0.34 pp

Oil & Gas Exploration & Production · contribution

+0.336 pp

Company participation

83%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 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	$95.2bn	0.305%	-0.014 pp	+0.131 pp	+86.6%	Yes
Devon Energy → DVN	United States	$29.8bn	0.096%	+0.011 pp	+0.071 pp	+195.9%	Yes
EOG Resources → EOG	United States	$52.0bn	0.166%	+0.002 pp	+0.049 pp	+88.6%	Yes
Diamondback Energy → FANG	United States	$19.5bn	0.063%	+0.002 pp	+0.032 pp	+127.5%	Yes
APA Corporation → APA	United States	$9.8bn	0.031%	+0.003 pp	+0.031 pp	+90.8%	Yes
Occidental Petroleum → OXY	United States	$27.1bn	0.087%	-0.010 pp	+0.021 pp	+67.7%	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.