iShares U.S. Oil & Gas Exploration & Production ETF (IEO) is a iShares ETF with a 0.37% expense ratio, 50 holdings and $929MM in net assets. Largest sector: Energy (95%).
Fee
0.37%
expense ratio
Net assets
$929MM
Launched
May 1, 2006
Holdings
50
as of Oct 22, 2026
Top 10 weight
71.1%
largest ten holdings
Largest sector
Energy
94.9%
Yield
30-day SEC 1.64% · TTM 1.66%
as of Sep 30, 2026
Benchmark
DJ US Select / Oil & Gas Exploration & Production
IEO's holdings are as of Oct 22, 2026.
Energy
94.9%
Financial Services
4.3%
Basic Materials
0.8%
1
COP
CONOCOPHILLIPS
17.68%
2
MPC
MARATHON PETROLEUM
13.03%
3
VLO
VALERO ENERGY
12.40%
4
PSX
PHILLIPS 66
4.68%
5
EOG
EOG RESOURCES
4.61%
6
DVN
DEVON ENERGY
4.31%
7
EQT
EQT
4.30%
8
FANG
DIAMONDBACK ENERGY
4.18%
9
EXE
EXPAND ENERGY
3.05%
10
PR
Permian Resources Class A
2.89%
11
TPL
TEXAS PACIFIC LAND
2.77%
12
OVV
OVINTIV
2.70%
13
DINO
HF SINCLAIR
2.68%
14
APA
APA
2.45%
15
AR
ANTERO RESOURCES
1.70%
16
RRC
Range Resources
1.45%
17
SM
SM Energy
1.29%
18
VNOM
VIPER ENERGY PARTNERS
1.25%
19
CHRD
Chord Energy
1.17%
20
PBF
PBF Energy Class A
1.10%
21
VG
Venture Global Class A
0.96%
22
MTDR
Matador Resources
0.95%
23
MGY
Magnolia Oil & Gas Class A
0.85%
24
MUR
Murphy Oil
0.81%
25
CNX
CNX Resources
0.75%
1–25 of 50
Funds listed by how much of their largest holdings they share with IEO — not a ranking.
Data from iShares; prices and returns from market data. Page updated October 29, 2026. Holdings and figures change over time. For information only — not investment advice.