iShares U.S. Oil & Gas Exploration… (IEO) Holdings
IEO holdings summary
as of Oct 25, 2026- Holdings
- 47 positions listed
- Top 10 weight
- 70.2% of net assets
- Effective holdings
- 13 equal-weight equivalent
- Largest holding
- COP 17.50% ConocoPhillips
- Annual turnover
- 14.8% of the portfolio traded
All IEO holdings
| # | Name | ||||||
|---|---|---|---|---|---|---|---|
| 1 | COP | ConocoPhillips | Energy | 17.50% | $162.5M | $176.01B | 19.4 |
| 2 | VLO | Valero Energy Corporation | Energy | 12.63% | $117.3M | $128.04B | 18.5 |
| 3 | MPC | Marathon Petroleum Corporation | Energy | 12.43% | $115.5M | $134.25B | 16.6 |
| 4 | PSX | Phillips 66 | Energy | 4.75% | $44.1M | $116.98B | 16.8 |
| 5 | EOG | EOG Resources, Inc. | Energy | 4.68% | $43.4M | $82.88B | 12.3 |
| 6 | DVN | Devon Energy Corporation | Energy | 4.15% | $38.5M | $55.80B | 11.1 |
| 7 | EQT | EQT Corporation | Energy | 4.11% | $38.2M | $33.97B | 12.6 |
| 8 | FANG | Diamondback Energy, Inc. | Energy | 4.05% | $37.6M | $57.11B | 38.8 |
| 9 | EXE | Expand Energy Corporation | Energy | 3.00% | $27.9M | $21.62B | 8.1 |
| 10 | PR | Permian Resources Corporation | Energy | 2.92% | $27.1M | $20.60B | 16.2 |
| 11 | TPL | Texas Pacific Land Corporation | Energy | 2.82% | $26.2M | $24.20B | 44.8 |
| 12 | OVV | Ovintiv Inc. | Energy | 2.72% | $25.2M | $19.18B | 19.3 |
| 13 | DINO | HF Sinclair Corporation | Energy | 2.62% | $24.3M | $22.27B | 11.9 |
| 14 | APA | APA Corporation | Energy | 2.35% | $21.8M | $17.22B | 10.4 |
| 15 | AR | Antero Resources Corporation | Energy | 1.77% | $16.4M | $11.88B | 11.1 |
| 16 | RRC | Range Resources Corporation | Energy | 1.46% | $13.6M | $10.10B | 11.9 |
| 17 | SM | SM Energy Company | Energy | 1.34% | $12.4M | $9.40B | 7.0 |
| 18 | VNOM | Viper Energy Partners LP | Energy | 1.30% | $12.1M | $16.17B | — |
| 19 | CHRD | Chord Energy Corporation | Energy | 1.21% | $11.2M | $8.45B | 10.4 |
| 20 | PBF | PBF Energy Inc. | Energy | 1.10% | $10.2M | $10.02B | 7.4 |
| 21 | MTDR | Matador Resources Company | Energy | 0.94% | $8.7M | $7.12B | 9.9 |
| 22 | VG | Venture Global, Inc. | Energy | 0.94% | $8.7M | $31.80B | 10.0 |
| 23 | MUR | Murphy Oil Corporation | Energy | 0.84% | $7.8M | $5.98B | 20.7 |
| 24 | MGY | Magnolia Oil & Gas Corporation | Energy | 0.81% | $7.5M | $6.96B | 11.1 |
| 25 | CNX | CNX Resources Corporation | Energy | 0.71% | $6.6M | $5.31B | 5.8 |
| 26 | DK | Delek US Holdings, Inc. | Energy | 0.65% | $6.0M | $4.69B | 20.8 |
| 27 | CRGY | Crescent Energy Company | Energy | 0.62% | $5.7M | $5.42B | 125.2 |
| 28 | CRC | California Resources Corporation | Energy | 0.60% | $5.6M | $4.83B | — |
| 29 | PARR | Par Pacific Holdings, Inc. | Energy | 0.56% | $5.2M | $4.18B | 4.9 |
| 30 | CLMT | Calumet Specialty Products Partners, L.P. | Basic Materials | 0.48% | $4.4M | $5.08B | — |
| 31 | NOG | Northern Oil and Gas, Inc. | Energy | 0.39% | $3.6M | $2.89B | — |
| 32 | GPOR | Gulfport Energy Corporation | Energy | 0.33% | $3.1M | $2.98B | 6.6 |
| 33 | TALO | Talos Energy Inc. | Energy | 0.30% | $2.8M | $2.97B | — |
| 34 | WKC | World Kinect Corporation | Energy | 0.27% | $2.5M | $1.85B | — |
| 35 | CVI | CVR Energy, Inc. | Energy | 0.25% | $2.4M | $6.17B | 91.7 |
| 36 | KOS | Kosmos Energy Ltd. | Energy | 0.22% | $2.0M | $1.66B | — |
| 37 | REX | REX American Resources Corporation | Basic Materials | 0.17% | $1.6M | $1.38B | 11.4 |
| 38 | CRK | Comstock Resources, Inc. | Energy | 0.16% | $1.5M | $4.11B | 7.7 |
| 39 | DEC | Diversified Energy Company PLC | Energy | 0.14% | $1.3M | $1.02B | 2.4 |
| 40 | GPRE | Green Plains Inc. | Basic Materials | 0.14% | $1.3M | $1.01B | 9.0 |
| 41 | REPX | Riley Exploration Permian, Inc. | Energy | 0.12% | $1.1M | $1.06B | 8.7 |
| 42 | BKV | BKV Corporation | Energy | 0.10% | $963,827.98 | $2.51B | 8.2 |
| 43 | EGY | VAALCO Energy, Inc. | Energy | 0.09% | $864,473.85 | $652.2M | — |
| 44 | VTS | Vitesse Energy, Inc. | Energy | 0.09% | $832,903.37 | $768.4M | — |
| 45 | SOC | Sable Offshore Corp. | Energy | 0.07% | $687,122.07 | $637.0M | — |
| 46 | SD | SandRidge Energy, Inc. | Energy | 0.06% | $596,124.82 | $529.1M | 6.4 |
| 47 | CLNE | Clean Energy Fuels Corp. | Energy | 0.03% | $313,847.65 | $330.7M | — |
Weights as a percentage of net assets. Value held = weight × net assets ($928.5M). Market cap and P/E from each company's latest fundamentals (U.S.-listed stocks).
IEO sector breakdown
| Sector | Weight | Holdings | Largest |
|---|---|---|---|
| Energy | 98.2% | 44 | COP, VLO, MPC |
| Basic Materials | 0.8% | 3 | CLMT, REX, GPRE |
Sum of the weights of the holdings in each sector.
IEO top industries
IEO overlap with other ETFs
| ETF | Fund | Overlap | Shared holdings | Expense ratio |
|---|---|---|---|---|
| FTXN | First Trust Nasdaq Oil & Gas ETF | 56.0% | 28 of 48 | 0.60% |
| WTID | UBS ETRACS - ProShares Daily 3x Inverse Crude… | 47.5% | 7 of 10 | 0.96% |
| WTIU | UBS ETRACS - ProShares Daily 3x Long Crude ETN | 47.4% | 7 of 10 | 0.95% |
| IWM | iShares Russell 2000 ETF | 2.6% | 27 of 1,962 | 0.19% |
| SPY | SPDR S&P 500 ETF | 1.2% | 11 of 502 | 0.09% |
| VTI | Vanguard Total Stock Market ETF | 1.2% | 43 of 2,941 | 0.03% |
Overlap = sum over shared holdings of the smaller of the two weights. 100% means identical portfolios.
About the IEO portfolio
iShares U.S. Oil & Gas Exploration… holds 47 positions. The ten largest make up 70.2% of the fund, so it behaves like a portfolio of about 13 equally weighted stocks. The biggest positions are ConocoPhillips (17.50%), Valero Energy Corporation (12.63%), Marathon Petroleum Corporation (12.43%), Phillips 66 (4.75%), EOG Resources, Inc. (4.68%).
By sector, Energy is 98.2%, Basic Materials is 0.8%. Holdings data is from the fund's latest portfolio as reported by EODHD on October 25, 2026; positions change as the fund rebalances.
Related: IEO chart, IEO performance, IEO dividends, IEO valuation, IEO overview.
IEO holdings FAQ
How many holdings does IEO have?
IEO holds 47 positions as of October 25, 2026.
What are the top 10 holdings of IEO?
The ten largest holdings are ConocoPhillips (17.50%), Valero Energy Corporation (12.63%), Marathon Petroleum Corporation (12.43%), Phillips 66 (4.75%), EOG Resources, Inc. (4.68%), Devon Energy Corporation (4.15%), EQT Corporation (4.11%), Diamondback Energy, Inc. (4.05%), Expand Energy Corporation (3.00%), Permian Resources Corporation (2.92%). Together they are 70.2% of the fund.
What percentage of IEO is ConocoPhillips?
ConocoPhillips is the largest holding at 17.50% of net assets, about $162.5M of the fund's $928.5M.
How concentrated is IEO?
The top 10 holdings are 70.2% of the fund. By the effective number of holdings (1 divided by the sum of squared weights) IEO behaves like a portfolio of about 13 equally weighted stocks.