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

Materials29.2%+26.88 pp Energy2.3%-0.54 pp Communication Services2.2%-0.64 pp Utilities2.1%-0.78 pp Real Estate1.6%-0.97 pp Industrials7.6%-2.18 pp Consumer Staples4.9%-2.47 pp Consumer Discretionary8.4%-3.06 pp Financials7.9%-4.65 pp Health Care8.0%-4.97 pp Information Technology25.9%-6.63 pp

2 · Industry

Inside Energy

Oil & Gas Exploration & Production0.73%-0.21 pp Oil & Gas Storage & Transportation0.40%-0.17 pp Integrated Oil & Gas0.60%-0.10 pp Oil & Gas Equipment & Services0.25%-0.05 pp Oil & Gas Refining & Marketing0.32%-0.01 pp

3 · Sub-industry

Inside Oil & Gas Exploration & Production

Oil & Gas Exploration & Production0.73%-0.209 pp

Concentrated

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

View all contributions →

Oil & Gas Exploration & Production · weight

0.73%

Industry change · 12M

-0.21 pp

Oil & Gas Exploration & Production · contribution

-0.209 pp

Company participation

67%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 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
ConocoPhillips → COP	United States	$161.3bn	0.235%	+0.008 pp	-0.082 pp	+30.0%	Yes
EOG Resources → EOG	United States	$77.6bn	0.113%	+0.001 pp	-0.056 pp	+16.9%	Yes
Diamondback Energy → FANG	United States	$55.8bn	0.081%	-0.003 pp	-0.029 pp	+27.1%	No
Texas Pacific Land Corporation → TPL	United States	$32.7bn	0.048%	+0.035 pp	+0.024 pp	+8.1%	Yes
Expand Energy → EXE	United States	$26.4bn	0.038%	-0.013 pp	-0.023 pp	+1.7%	No
EQT Corporation → EQT	United States	$39.7bn	0.058%	-0.008 pp	-0.018 pp	+20.5%	No
Occidental Petroleum → OXY	United States	$64.1bn	0.093%	+0.014 pp	-0.017 pp	+34.5%	Yes
Devon Energy → DVN	United States	$31.2bn	0.045%	+0.000 pp	-0.012 pp	+38.0%	Yes
APA Corporation → APA	United States	$15.0bn	0.022%	+0.005 pp	+0.004 pp	+112.3%	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.