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ETF · holdings as filed 2026-03-31

What's inside IEO?

iShares U.S. Oil & Gas Exploration & Production ETF
Holdings
49
positions in the fund
Top 10
69%
of fund assets
Expense ratio
0.38%
net, per year
Fund size
$655M
total net assets

Top 20 holdings

RankLogoTicker / NameWeight
1
C
COPCONOCOPHILLIPS
19.01%
2
E
EOGEOG RESOURCES INC
9.22%
3
V
VLOVALERO ENERGY CORP
8.86%
4
P
PSXPHILLIPS 66
7.13%
5
F
FANGDIAMONDBACK ENERGY INC
4.69%
6
D
DVNDEVON ENERGY CORP
4.37%
7
M
MPCMARATHON PETROLEUM CORP
4.33%
8
E
EQTEQT CORP
4.01%
9
C
CTRACOTERRA ENERGY INC
3.73%
10
E
EXEEXPAND ENERGY CORP
3.66%
11
T
TPLTEXAS PACIFIC LAND CORP
3.64%
12
O
OVVOVINTIV INC
2.31%
13
B
BISXXBCF INSTITUTIONAL-SL AGNCY
2.31%
14
P
PRPERMIAN RESOURCES CORP-CL A
2.21%
15
A
APAAPA CORP
2.11%
16
A
ARANTERO RESOURCES CORP
1.74%
17
R
RRCRANGE RESOURCES CORP
1.50%
18
D
DINOHF SINCLAIR CORP
1.37%
19
V
VNOMVIPER ENERGY INC-CL A
1.22%
20
C
CHRDCHORD ENERGY CORP
1.13%
Sectors
Top holdings — Energy
Your 10 largest positions in this sector
1
C
COPCONOCOPHILLIPS
19.01%
2
E
EOGEOG RESOURCES INC
9.22%
3
V
VLOVALERO ENERGY CORP
8.86%
4
P
PSXPHILLIPS 66
7.13%
5
F
FANGDIAMONDBACK ENERGY INC
4.69%
6
D
DVNDEVON ENERGY CORP
4.37%
7
M
MPCMARATHON PETROLEUM CORP
4.33%
8
E
EQTEQT CORP
4.01%
9
E
EXEEXPAND ENERGY CORP
3.66%
10
O
OVVOVINTIV INC
2.31%
Geography
Top holdings — United States
Your 10 largest positions in this country
1
C
COPCONOCOPHILLIPS
19.01%
2
E
EOGEOG RESOURCES INC
9.22%
3
V
VLOVALERO ENERGY CORP
8.86%
4
P
PSXPHILLIPS 66
7.13%
5
F
FANGDIAMONDBACK ENERGY INC
4.69%
6
D
DVNDEVON ENERGY CORP
4.37%
7
M
MPCMARATHON PETROLEUM CORP
4.33%
8
E
EQTEQT CORP
4.01%
9
C
CTRACOTERRA ENERGY INC
3.73%
10
E
EXEEXPAND ENERGY CORP
3.66%
Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
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Funds similar to IEO
XOPState Street(R) SPDR(R) S&P(R) Oil & Gas Exploration & Production ETF
51% overlap
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GUSHDirexion Daily S&P Oil & Gas Exp. & Prod. Bull 2X Shares
38% overlap
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FENYFidelity MSCI Energy Index ETF
33% overlap
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VDEVANGUARD ENERGY INDEX FUND
33% overlap
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IGEiShares North American Natural Resources ETF
21% overlap
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NANRState Street(R) SPDR(R) S&P(R) North American Natural Resources ETF
16% overlap
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Data source: official SEC Form N-PORT filings (as of 2026-03-31); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.