IEO ETF

$150.15

AUM$879M

TER0.37%

Holdings50

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IEO ETF

$150.15

iShares US Oil & Gas Exploration & Production ETF

AUM$879M

TER0.37%

Holdings50

See how much of IEO you already own

Just $25 once·$99/mo·Download sample

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Overview Performance Chart Dividends Top Holdings All Holdings Sectors Geography Similar Compare Overlap

COP is IEO's largest holding at 16.77% of the fund as of Oct 1, 2026. IEO is iShares US Oil & Gas Exploration & Production ETF.

Showing top 50 of 51 holdings · as of Oct 1, 2026

IEO holdings, by weight
#	Ticker	Name	Weight	Cumulative	Shares	Mkt value	Sector	Industry
1	COP	ConocophillipsEnergy · Oil & Gas	16.77%	16.8%	1,016,446	$129.15M	Energy	Oil & Gas
2	MPC	Marathon Petroleum CorpEnergy · Oil & Gas	12.96%	29.7%	237,605	$99.83M	Energy	Oil & Gas
Sector and industry · Pro
3	VLO	Valero	12.92%	42.6%	243,614	$99.51M
4	PSX	Phillips 66	4.73%	47.4%	137,814	$36.41M
5	DVN	Devon Energy Corp.	4.49%	51.9%	733,745	$34.60M
6	EOG	Eog Resources Inc	4.48%	56.3%	244,465	$34.55M
7	EQT	EQT Corp.	4.28%	60.6%	657,861	$32.95M
8	FANG	Diamondback Energy Inc -	4.27%	64.9%	177,363	$32.90M
9	EXE	Expand Energy Corp	3.06%	68.0%	274,399	$23.59M
10	TPL	Texas Pacific Land Trust	3.04%	71.0%	69,492	$23.38M
11	PR	Permian Resources Corp	2.83%	73.8%	992,751	$21.77M
12	—	Hollyfrontier	2.68%	76.5%	183,331	$20.66M
13	OVV	Ovintiv Inc.	2.54%	79.1%	326,553	$19.59M
14	APA	Apa Corp	2.34%	81.4%	415,270	$18.00M
15	AR	Antero Resources Corp	1.61%	83.0%	364,406	$12.40M
16	RRC	Range Resources Corp	1.35%	84.4%	276,979	$10.41M
17	SM	Sm Energy Co	1.28%	85.6%	281,927	$9.88M
18	PBF	Pbf Energy Inc	1.25%	86.9%	116,616	$9.60M
19	VNOM	Viper Energy Inc Cl A	1.22%	88.1%	230,427	$9.38M
20	CHRD	Chord Energy Corp	1.15%	89.3%	64,834	$8.87M
21	—	Venture Global Inc	1.04%	90.3%	629,970	$8.04M
22	MTDR	Matador Resources Co	0.96%	91.3%	139,350	$7.38M
23	MGY	Magnolia Oil & Gas Corp	0.88%	92.1%	280,879	$6.76M
24	MUR	Murphy Oil Corp	0.78%	92.9%	159,753	$5.99M
25	CNX	Cnx Resources Corp	0.72%	93.6%	175,357	$5.53M
26	DK	Delek Us Holdings Inc	0.70%	94.3%	72,577	$5.40M
27	PARR	Par Pacific Holdings Inc	0.66%	95.0%	59,387	$5.12M
28	CRC	California Resources Corp	0.65%	95.6%	96,856	$5.00M
29	—	Crescent Energ-A	0.61%	96.3%	352,475	$4.68M
30	CLMT	Calumet Inc	0.58%	96.8%	83,356	$4.48M
31	NOG	Northern Oil and Gas Inc	0.38%	97.2%	125,866	$2.96M
32	GPOR	Gulfport Energy Corp	0.35%	97.6%	17,628	$2.70M
33	TALO	Talos Energy Inc	0.32%	97.9%	148,645	$2.47M
34	WKC	World Kinect Corp	0.28%	98.2%	60,534	$2.16M
35	CVI	Cvr Energy, Inc.	0.24%	98.4%	34,648	$1.88M
36	KOS	Kosmos Energy Ltd	0.24%	98.6%	707,533	$1.83M
37	REX	Rex American Resources Corp	0.19%	98.8%	33,523	$1.47M
38	CRK	Comstock Resources Inc	0.16%	99.0%	93,818	$1.20M
39	—	Green Plains Renewable Energy Inc	0.16%	99.1%	82,952	$1.24M
40	DEC	Diversified Energy Co	0.15%	99.3%	83,750	$1.12M
41	BKV	Bkv Corp	0.12%	99.4%	44,034	$948.5K
42	Debt	Blackrock Cash Funds: Treasury, Sl Agency Shares	0.11%	99.5%	870,997	$871.0K
43	REPX	Riley Exploration Permian Inc	0.11%	99.6%	20,188	$828.9K
44	—	Malco Energy Ltd	0.09%	99.7%	124,487	$722.0K
45	VTS	Vitesse Energy Inc	0.09%	99.8%	40,859	$685.2K
46	SOC	Sable Offshore Corp.	0.08%	99.9%	197,544	$649.9K
47	SD	Sandridge Energy, Inc.	0.06%	100.0%	36,919	$500.6K
48	CLNE	Clean Energy Fuels Corp	0.04%	100.0%	207,259	$325.4K
49	—	Cash Collateral USD Sgaft	0.01%	100.0%	64,000	$64.0K
50	—	Emini Energy Select Sector Dec 26	0.00%	100.0%	6	-
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Not reported for this fund: share changes.

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IEO ETF All Holdings

IEO holdings total 50 positions. The top 10 holdings account for 71.0% of the fund, led by Conocophillips Common Stock USD 0.01 at 16.8%, Marathon Petroleum Corp at 13.0%, Valero Energy at 12.9%.

IEO portfolio concentration is relatively high, with the top 10 representing 71.0% of total assets. The largest sector exposure is Energy at 92.6%.

IEO sectors provide a detailed breakdown. IEO overlap shows how holdings compare to other funds in your portfolio.

Compare IEO

IEO vs SPY IEO vs QQQ IEO vs VOO IEO vs VTI IEO vs IVV IEO vs SCHD IEO vs VYM IEO vs VXUS

IEO ETF Holdings

51 of 50 holdings

Sector

Industry

Sort By

1
Conocophillips Common Stock USD 0.01
COPEnergy
16.77%
2
Marathon Petroleum Corp
MPCEnergy
12.96%
3
Valero Energy
VLOEnergy
12.92%
4
Phillips 66
PSXEnergy
4.73%
5
Devon Energy Corp.
DVNEnergy
4.49%
6
Eog Resources Inc
EOGEnergy
4.48%
7
EQT Corp.
EQTEnergy
4.28%
8
Diamondback Energy Inc - Common
FANGEnergy
4.27%
9
Expand Energy Corp
EXEEnergy
3.06%
10
Texas Pacific Land Trust
TPLReal Estate
3.04%
11
Permian Resources Corp
PRUnknown
2.83%
12
Hollyfrontier
DINOEnergy
2.68%
13
Ovintiv Inc.
OVVEnergy
2.54%
14
Apa Corp
APAEnergy
2.34%
15
Antero Resources Corp
AREnergy
1.61%
16
Range Resources Corp
RRCEnergy
1.35%
17
Sm Energy Co
SMEnergy
1.28%
18
Pbf Energy Inc
PBFEnergy
1.25%
19
Viper Energy Inc Cl A
VNOMEnergy
1.22%
20
Chord Energy Corp
OASEnergy
1.15%
21
Venture Global Inc
VGEnergy
1.04%
22
Matador Resources Co
MTDREnergy
0.96%
23
Magnolia Oil & Gas Corp
MGYEnergy
0.88%
24
Murphy Oil Corp
MUREnergy
0.78%
25
Cnx Resources Corp
CNXEnergy
0.72%
26
Delek Us Holdings Inc
DKEnergy
0.70%
27
Par Pacific Holdings Inc
PARREnergy
0.66%
28
California Resources Corp Common Stock
CRCEnergy
0.65%
29
Crescent Energ-A
CRGYEnergy
0.61%
30
Calumet Inc
CLMTUnknown
0.58%
31
Northern Oil And Gas Inc
NOGEnergy
0.38%
32
Gulfport Energy Corp
GPOREnergy
0.35%
33
Talos Energy Inc
TALOEnergy
0.32%
34
World Kinect Corp
WKCInformation Technology
0.28%
35
Cvr Energy, Inc.
CVIEnergy
0.24%
36
Kosmos Energy Ltd
KOSUnknown
0.24%
37
Rex American Resources Corp
REXEnergy
0.19%
38
Comstock Resources Inc
CRKEnergy
0.16%
39
Green Plains Renewable Energy Inc
GPREEnergy
0.16%
40
Diversified Energy Co
DECUnknown
0.15%
41
Bkv Corp
BKVFinancials
0.12%
42
Blackrock Cash Funds: Treasury, Sl Agency Shares
XTSLAFinancials
0.11%
43
Riley Exploration Permian Inc
REPXEnergy
0.11%
44
Malco Energy Ltd
EGYEnergy
0.09%
45
Vitesse Energy Inc
VTSEnergy
0.09%
46
Sable Offshore Corp.
SOCEnergy
0.08%
47
Sandridge Energy, Inc.
SDEnergy
0.06%
48
Clean Energy Fuels Corp
CLNEEnergy
0.04%
49
Cash Collateral USD Sgaft
Other
0.01%
50
Emini Energy Select Sector Dec 26
Other
0.00%
51
USD Cash
Other
-0.02%

#	Company	Ticker	Weight
1	Conocophillips Common Stock USD 0.01	COP	16.770%
2	Marathon Petroleum Corp	MPC	12.960%
3	Valero Energy	VLO	12.920%
4	Phillips 66	PSX	4.730%
5	Devon Energy Corp.	DVN	4.490%
6	Eog Resources Inc	EOG	4.480%
7	EQT Corp.	EQT	4.280%
8	Diamondback Energy Inc - Common	FANG	4.270%
9	Expand Energy Corp	EXE	3.060%
10	Texas Pacific Land Trust	TPL	3.040%
11	Permian Resources Corp	PR	2.830%
12	Hollyfrontier	DINO	2.680%
13	Ovintiv Inc.	OVV	2.540%
14	Apa Corp	APA	2.340%
15	Antero Resources Corp	AR	1.610%
16	Range Resources Corp	RRC	1.350%
17	Sm Energy Co	SM	1.280%
18	Pbf Energy Inc	PBF	1.250%
19	Viper Energy Inc Cl A	VNOM	1.220%
20	Chord Energy Corp	OAS	1.150%
21	Venture Global Inc	VG	1.040%
22	Matador Resources Co	MTDR	0.960%
23	Magnolia Oil & Gas Corp	MGY	0.880%
24	Murphy Oil Corp	MUR	0.780%
25	Cnx Resources Corp	CNX	0.720%
26	Delek Us Holdings Inc	DK	0.700%
27	Par Pacific Holdings Inc	PARR	0.660%
28	California Resources Corp Common Stock	CRC	0.650%
29	Crescent Energ-A	CRGY	0.610%
30	Calumet Inc	CLMT	0.580%
31	Northern Oil And Gas Inc	NOG	0.380%
32	Gulfport Energy Corp	GPOR	0.350%
33	Talos Energy Inc	TALO	0.320%
34	World Kinect Corp	WKC	0.280%
35	Cvr Energy, Inc.	CVI	0.240%
36	Kosmos Energy Ltd	KOS	0.240%
37	Rex American Resources Corp	REX	0.190%
38	Comstock Resources Inc	CRK	0.160%
39	Green Plains Renewable Energy Inc	GPRE	0.160%
40	Diversified Energy Co	DEC	0.150%
41	Bkv Corp	BKV	0.120%
42	Blackrock Cash Funds: Treasury, Sl Agency Shares	XTSLA	0.110%
43	Riley Exploration Permian Inc	REPX	0.110%
44	Malco Energy Ltd	EGY	0.090%
45	Vitesse Energy Inc	VTS	0.090%
46	Sable Offshore Corp.	SOC	0.080%
47	Sandridge Energy, Inc.	SD	0.060%
48	Clean Energy Fuels Corp	CLNE	0.040%
49	Cash Collateral USD Sgaft	-	0.010%
50	Emini Energy Select Sector Dec 26	-	0.000%
51	USD Cash	-	-0.020%