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

Materials30.1%+27.83 pp Energy2.0%-0.58 pp Communication Services2.1%-0.59 pp Utilities2.1%-0.66 pp Real Estate1.6%-0.88 pp Industrials7.7%-1.89 pp Consumer Staples4.9%-2.28 pp Consumer Discretionary8.4%-3.45 pp Health Care8.2%-4.24 pp Financials7.7%-4.88 pp Information Technology25.3%-8.39 pp

2 · Industry

Inside Energy

Oil & Gas Exploration & Production0.61%-0.19 pp Oil & Gas Storage & Transportation0.37%-0.16 pp Integrated Oil & Gas0.51%-0.11 pp Oil & Gas Refining & Marketing0.25%-0.07 pp Oil & Gas Equipment & Services0.24%-0.05 pp

3 · Sub-industry

Inside Oil & Gas Exploration & Production

Oil & Gas Exploration & Production0.61%-0.192 pp

Concentrated

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

View all contributions →

Oil & Gas Exploration & Production · weight

0.61%

Industry change · 12M

-0.19 pp

Oil & Gas Exploration & Production · contribution

-0.192 pp

Company participation

11%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 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	$138.7bn	0.190%	-0.025 pp	-0.092 pp	+18.4%	No
EOG Resources → EOG	United States	$66.6bn	0.091%	-0.024 pp	-0.066 pp	+1.4%	No
Expand Energy → EXE	United States	$25.9bn	0.036%	-0.021 pp	+0.036 pp	+12.6%	No
Diamondback Energy → FANG	United States	$49.1bn	0.067%	-0.018 pp	-0.035 pp	+12.6%	No
Occidental Petroleum → OXY	United States	$52.4bn	0.072%	-0.009 pp	-0.031 pp	+11.1%	No
Texas Pacific Land Corporation → TPL	United States	$36.1bn	0.050%	+0.037 pp	+0.025 pp	+10.8%	Yes
Devon Energy → DVN	United States	$27.0bn	0.037%	-0.009 pp	-0.016 pp	+23.5%	No
EQT Corporation → EQT	United States	$38.3bn	0.053%	-0.022 pp	-0.012 pp	+29.0%	No
APA Corporation → APA	United States	$10.7bn	0.015%	-0.003 pp	-0.002 pp	+54.3%	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.