---
ticker: "IEO"
name: "iShares U.S. Oil & Gas Exploration & Production ETF"
url: "https://etf.net/etf/IEO"
grade: "B"
score: 58
graded_at: "2026-10-12"
category: "Oil & Gas Producers"
category_rank: "4 of 11"
methodology: "https://etf.net/methodology"
---

# IEO: iShares U.S. Oil & Gas Exploration & Production ETF

Grade **B**, Score 58 of 100. Rank 4 of 11 in Oil & Gas Producers.

Graded Oct 12, 2026.

## Grade pillars

| Pillar | Score | Category rank |
| --- | --- | --- |
| Cost | 55 | 5 of 11 |
| Mission | 66 | 2 of 6 |
| Risk | 54 | 5 of 11 |
| Tradability | 75 | 3 of 11 |
| Holdings | 29 | 8 of 11 |
| Durability | 70 | 4 of 11 |

## Top holdings

The fund holds 50 positions. These are the largest 30, by weight.

| # | Ticker | Name | Weight |
| --- | --- | --- | --- |
| 1 | COP | Conocophillips | 16.79% |
| 2 | MPC | Marathon Petroleum | 13.32% |
| 3 | VLO | Valero Energy Corp | 13.02% |
| 4 | PSX | Phillips 66 | 4.72% |
| 5 | EOG | Eog Resources | 4.46% |
| 6 | DVN | Devon Energy | 4.36% |
| 7 | EQT | Eqt | 4.28% |
| 8 | FANG | Diamondback Energy | 4.20% |
| 9 | TPL | Texas Pacific Land | 3.09% |
| 10 | EXE | Expand Energy | 2.98% |
| 11 | PR | Permian Resources Class A | 2.82% |
| 12 | DINO | Hf Sinclair | 2.74% |
| 13 | OVV | Ovintiv | 2.57% |
| 14 | APA | Apa | 2.35% |
| 15 | AR | Antero Resources | 1.61% |
| 16 | RRC | Range Resources | 1.40% |
| 17 | SM | Sm Energy | 1.29% |
| 18 | VNOM | Viper Energy Inc Class A | 1.22% |
| 19 | PBF | Pbf Energy Class A | 1.21% |
| 20 | CHRD | Chord Energy | 1.13% |
| 21 | VG | Venture Global Class A | 1.02% |
| 22 | MTDR | Matador Resources | 0.93% |
| 23 | MGY | Magnolia Oil Gas Corp Class A | 0.83% |
| 24 | MUR | Murphy Oil Corp | 0.76% |
| 25 | CNX | Cnx Resources | 0.74% |
| 26 | DK | Delek Us Holdings Inc | 0.67% |
| 27 | CRC | California Resources | 0.63% |
| 28 | PARR | Par Pacific Holdings | 0.60% |
| 29 | CLMT | Calumet | 0.58% |
| 30 | CRGY | Crescent Energy Class A | 0.55% |

Source: etf.net, https://etf.net/etf/IEO. Please cite the page URL.