IEZ additions & removals
Changes are observation-bounded: an addition is the first retained official snapshot containing a security after an earlier absence; a removal is its first retained absence. Baseline holdings receive no invented addition date.
Additions
| Ticker | Issuer | Observed date | Change |
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| Flowco Holdings Inc | Flowco Holdings Inc | 2026-03-31 | Added / first present |
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| 1XAEM26 | XAE ENERGY JUN26 | 2026-03-31 | Added / first present |
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| SOLARIS ENERGY INFRASTRUCTURE, INC. | SOLARIS ENERGY INFRASTRUCTURE, INC. | 2025-12-31 | Added / first present |
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| 1XAEH26 | XAE ENERGY MAR26 | 2025-12-31 | Added / first present |
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| Seadrill Limited | Seadrill Limited | 2025-09-30 | Added / first present |
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| 1XAEZ25 | XAE ENERGY DEC25 | 2025-09-30 | Added / first present |
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| 1XAEU25 | XAE ENERGY SEP25 | 2025-06-30 | Added / first present |
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| 1XAEM25 | XAE ENERGY JUN25 | 2025-03-31 | Added / first present |
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| NPK INTERNATIONAL INC. | NPK INTERNATIONAL INC. | 2024-12-31 | Added / first present |
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| 1XAEH25 | XAE ENERGY MAR25 | 2024-12-31 | Added / first present |
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| INNOVEX INTERNATIONAL, INC. | INNOVEX INTERNATIONAL, INC. | 2024-09-30 | Added / first present |
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| 1XAEZ24 | XAE ENERGY DEC24 | 2024-09-30 | Added / first present |
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| KODIAK GAS SERVICES, INC. | KODIAK GAS SERVICES, INC. | 2024-06-30 | Added / first present |
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| 1XAEU24 | XAE ENERGY SEP24 | 2024-06-30 | Added / first present |
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| 1XAEM24 | XAE ENERGY JUN24 | 2024-03-31 | Added / first present |
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| SELECT WATER SOLUTIONS, INC. | SELECT WATER SOLUTIONS, INC. | 2023-12-31 | Added / first present |
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| TETRA TECHNOLOGIES, INC. | TETRA TECHNOLOGIES, INC. | 2023-12-31 | Added / first present |
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| TIDEWATER INC. | TIDEWATER INC. | 2023-12-31 | Added / first present |
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| ATLAS ENERGY SOLUTIONS INC. | ATLAS ENERGY SOLUTIONS INC. | 2023-12-31 | Added / first present |
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| IXPH4 | XAE ENERGY MAR24 | 2023-12-31 | Added / first present |
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| IXPZ3 | XAE ENERGY DEC23 | 2023-09-30 | Added / first present |
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| CORE LABORATORIES INC. | CORE LABORATORIES INC. | 2023-06-30 | Added / first present |
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| IXPU3 | XAE ENERGY SEP23 | 2023-06-30 | Added / first present |
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| IXPM3 | XAE ENERGY JUN23 | 2023-03-31 | Added / first present |
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| WEATHERFORD INTERNATIONAL PUBLIC LIMITED COMPANY | WEATHERFORD INTERNATIONAL PUBLIC LIMITED COMPANY | 2022-12-31 | Added / first present |
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| ProFrac Holding Corp | ProFrac Holding Corp | 2022-12-31 | Added / first present |
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| NOBLE CORPORATION PLC | NOBLE CORPORATION PLC | 2022-12-31 | Added / first present |
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| IXPH3 | XAE ENERGY MAR23 | 2022-12-31 | Added / first present |
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| TECHNIPFMC PLC | TECHNIPFMC PLC | 2022-09-30 | Added / first present |
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| Core Laboratories N.V. | Core Laboratories N.V. | 2022-09-30 | Added / first present |
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| Transocean Ltd. | Transocean Ltd. | 2022-09-30 | Added / first present |
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| NABORS INDUSTRIES LTD. | NABORS INDUSTRIES LTD. | 2022-09-30 | Added / first present |
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| DIAMOND OFFSHORE DRILLING, INC. | DIAMOND OFFSHORE DRILLING, INC. | 2022-09-30 | Added / first present |
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| Valaris Limited | Valaris Limited | 2022-09-30 | Added / first present |
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| EXPRO GROUP HOLDINGS N.V. | EXPRO GROUP HOLDINGS N.V. | 2022-09-30 | Added / first present |
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| IXPZ2 | XAE Energy | 2022-09-30 | Added / first present |
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| Schlumberger NV | Schlumberger NV | 2022-03-31 | Added / first present |
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| RPC Inc | RPC Inc | 2022-03-31 | Added / first present |
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| US Silica Holdings Inc | US Silica Holdings Inc | 2021-03-31 | Added / first present |
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| Tidewater Inc | Tidewater Inc | 2021-03-31 | Added / first present |
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| NOV Inc | NOV Inc | 2021-03-31 | Added / first present |
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| Technip Energies NV | Technip Energies NV | 2021-03-31 | Added / first present |
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| Bristow Group Inc | Bristow Group Inc | 2020-09-30 | Added / first present |
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| BlackRock Funds III | BlackRock Funds III | 2020-06-30 | Added / first present |
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| ChampionX Corp | ChampionX Corp | 2020-06-30 | Added / first present |
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| NexTier Oilfield Solutions Inc | NexTier Oilfield Solutions Inc | 2019-12-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
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| 1XAEH26 | XAE ENERGY MAR26 | 2026-03-31 | Removed / first absent |
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| 1XAEZ25 | XAE ENERGY DEC25 | 2025-12-31 | Removed / first absent |
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| 1XAEU25 | XAE ENERGY SEP25 | 2025-09-30 | Removed / first absent |
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| 1XAEM25 | XAE ENERGY JUN25 | 2025-06-30 | Removed / first absent |
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| NPK INTERNATIONAL INC. | NPK INTERNATIONAL INC. | 2025-06-30 | Removed / first absent |
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| 1XAEH25 | XAE ENERGY MAR25 | 2025-03-31 | Removed / first absent |
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| 1XAEZ24 | XAE ENERGY DEC24 | 2024-12-31 | Removed / first absent |
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| 1XAEU24 | XAE ENERGY SEP24 | 2024-09-30 | Removed / first absent |
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| 1XAEM24 | XAE ENERGY JUN24 | 2024-06-30 | Removed / first absent |
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| IXPH4 | XAE ENERGY MAR24 | 2024-03-31 | Removed / first absent |
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| IXPZ3 | XAE ENERGY DEC23 | 2023-12-31 | Removed / first absent |
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| IXPU3 | XAE ENERGY SEP23 | 2023-09-30 | Removed / first absent |
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| IXPM3 | XAE ENERGY JUN23 | 2023-06-30 | Removed / first absent |
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| ProFrac Holding Corp | ProFrac Holding Corp | 2023-09-30 | Removed / first absent |
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| IXPH3 | XAE ENERGY MAR23 | 2023-03-31 | Removed / first absent |
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| Core Laboratories N.V. | Core Laboratories N.V. | 2023-06-30 | Removed / first absent |
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| DIAMOND OFFSHORE DRILLING, INC. | DIAMOND OFFSHORE DRILLING, INC. | 2024-09-30 | Removed / first absent |
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| IXPZ2 | XAE Energy | 2022-12-31 | Removed / first absent |
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| US Silica Holdings Inc | US Silica Holdings Inc | 2024-09-30 | Removed / first absent |
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| Tidewater Inc | Tidewater Inc | 2021-12-31 | Removed / first absent |
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| Technip Energies NV | Technip Energies NV | 2021-06-30 | Removed / first absent |
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| ChampionX Corp | ChampionX Corp | 2025-09-30 | Removed / first absent |
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| NexTier Oilfield Solutions Inc | NexTier Oilfield Solutions Inc | 2023-09-30 | Removed / first absent |
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| Chicago Mercantile Exchange | Chicago Mercantile Exchange | 2022-09-30 | Removed / first absent |
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| BlackRock Funds III | BlackRock Funds III | 2020-03-31 | Removed / first absent |
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| Schlumberger Ltd | Schlumberger Ltd | 2019-12-31 | Removed / first absent |
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| National Oilwell Varco Inc | National Oilwell Varco Inc | 2021-03-31 | Removed / first absent |
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| Select Energy Services Inc | Select Energy Services Inc | 2021-12-31 | Removed / first absent |
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| Apergy Corp | Apergy Corp | 2020-06-30 | Removed / first absent |
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| Dril-Quip Inc | Dril-Quip Inc | 2024-09-30 | Removed / first absent |
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| McDermott International Inc | McDermott International Inc | 2019-12-31 | Removed / first absent |
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| Newpark Resources Inc | Newpark Resources Inc | 2020-06-30 | Removed / first absent |
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| Matrix Service Co | Matrix Service Co | 2020-09-30 | Removed / first absent |
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| DMC Global Inc | DMC Global Inc | 2024-09-30 | Removed / first absent |
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| US Silica Holdings Inc | US Silica Holdings Inc | 2020-06-30 | Removed / first absent |
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| SEACOR Holdings Inc | SEACOR Holdings Inc | 2020-12-31 | Removed / first absent |
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| Oil States International Inc | Oil States International Inc | 2021-12-31 | Removed / first absent |
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| C&J Energy Services Inc | C&J Energy Services Inc | 2019-12-31 | Removed / first absent |
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| Exterran Corp | Exterran Corp | 2019-12-31 | Removed / first absent |
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| Diamond Offshore Drilling Inc | Diamond Offshore Drilling Inc | 2020-06-30 | Removed / first absent |
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| RPC Inc | RPC Inc | 2019-12-31 | Removed / first absent |
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| Keane Group Inc | Keane Group Inc | 2019-12-31 | Removed / first absent |
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| Tidewater Inc | Tidewater Inc | 2020-06-30 | Removed / first absent |
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