DRLL 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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| CVI | CVR Energy Inc | 2025-09-30 | Added / first present |
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| SOC | Sable Offshore Corp | 2025-09-30 | Added / first present |
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| CRGY | Crescent Energy Co | 2025-03-31 | Added / first present |
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| LB | Landbridge Co LLC | 2025-03-31 | Added / first present |
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| EXE | Expand Energy Corp | 2024-10-31 | Added / first present |
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| PR | Permian Resources Corp | 2024-10-31 | Added / first present |
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| STR | Sitio Royalties Corp | 2024-04-30 | Added / first present |
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| CNX | CNX Resources Corp | 2024-04-30 | Added / first present |
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| CRC | California Resources Corp | 2024-04-30 | Added / first present |
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| CRK | Comstock Resources Inc | 2024-04-30 | Added / first present |
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| CVI | CVR Energy Inc | 2024-04-30 | Added / first present |
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| GPOR | Gulfport Energy Corp | 2024-04-30 | Added / first present |
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| MUSA | Murphy USA Inc | 2024-04-30 | Added / first present |
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| NOG | Northern Oil & Gas Inc | 2024-04-30 | Added / first present |
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| PARR | Par Pacific Holdings Inc | 2024-04-30 | Added / first present |
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| TPL | Texas Pacific Land Corp | 2024-04-30 | Added / first present |
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| FTI | TECHNIPFMC PLC | 2024-01-31 | Added / first present |
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| VNOM | VIPER ENERGY INC | 2024-01-31 | Added / first present |
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| WFRD | WEATHERFORD INTL PLC | 2024-01-31 | Added / first present |
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Removals
| Ticker | Issuer | Observed date | Change |
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| CVI | CVR Energy Inc | 2026-03-31 | Removed / first absent |
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| SOC | Sable Offshore Corp | 2026-03-31 | Removed / first absent |
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| STR | Sitio Royalties Corp | 2025-09-30 | Removed / first absent |
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| CVI | CVR Energy Inc | 2025-03-31 | Removed / first absent |
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| PARR | Par Pacific Holdings Inc | 2024-10-31 | Removed / first absent |
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| FTI | TECHNIPFMC PLC | 2024-04-30 | Removed / first absent |
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| WFRD | WEATHERFORD INTL PLC | 2024-04-30 | Removed / first absent |
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| ENLC | ENLINK MIDSTREAM LLC | 2024-04-30 | Removed / first absent |
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| PXD | PIONEER NAT RES CO | 2024-07-31 | Removed / first absent |
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| SWN | SOUTHWESTERN ENERGY CO | 2024-10-31 | Removed / first absent |
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| CHK | CHESAPEAKE ENERGY CORP | 2024-10-31 | Removed / first absent |
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| HES | HESS CORP | 2025-09-30 | Removed / first absent |
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| MRO | MARATHON OIL CORP | 2025-01-31 | Removed / first absent |
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| NEP | NEXTERA ENERGY PARTNERS LP | 2024-04-30 | Removed / first absent |
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| CWEN/A | CLEARWAY ENERGY INC | 2024-04-30 | Removed / first absent |
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| CIVI | CIVITAS RESOURCES INC | 2026-03-31 | Removed / first absent |
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| AES | AES CORP | 2024-04-30 | Removed / first absent |
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| AM | ANTERO MIDSTREAM CORP | 2024-04-30 | Removed / first absent |
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| ATO | ATMOS ENERGY CORP | 2024-04-30 | Removed / first absent |
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| BEPC | BROOKFIELD RENEWABLE CORP | 2024-04-30 | Removed / first absent |
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| BKR | BAKER HUGHES COMPANY | 2024-04-30 | Removed / first absent |
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| CWEN | CLEARWAY ENERGY INC | 2024-04-30 | Removed / first absent |
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| DTM | DT MIDSTREAM INC | 2024-04-30 | Removed / first absent |
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| EXC | EXELON CORP | 2024-04-30 | Removed / first absent |
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| HAL | HALLIBURTON CO | 2024-04-30 | Removed / first absent |
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| HESM | HESS MIDSTREAM LP | 2024-04-30 | Removed / first absent |
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| HP | HELMERICH & PAYNE INC | 2024-04-30 | Removed / first absent |
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| IDA | IDACORP INC | 2024-04-30 | Removed / first absent |
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| KMI | KINDER MORGAN INC DEL | 2024-04-30 | Removed / first absent |
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| LNG | CHENIERE ENERGY INC | 2024-04-30 | Removed / first absent |
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| MDU | MDU RES GROUP INC | 2024-04-30 | Removed / first absent |
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| NE | NOBLE CORP PLC | 2024-04-30 | Removed / first absent |
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| NFE | NEW FORTRESS ENERGY INC | 2024-04-30 | Removed / first absent |
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| NFG | NATIONAL FUEL GAS CO | 2024-04-30 | Removed / first absent |
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| NI | NISOURCE INC | 2024-04-30 | Removed / first absent |
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| NOV | NOV INC | 2024-04-30 | Removed / first absent |
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| OKE | ONEOK INC NEW | 2024-04-30 | Removed / first absent |
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| PAGP | PLAINS GP HLDGS L P | 2024-01-31 | Removed / first absent |
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| PR | PERMIAN RESOURCES CORP | 2024-04-30 | Removed / first absent |
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| RIG | TRANSOCEAN LTD | 2024-04-30 | Removed / first absent |
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| RUN | SUNRUN INC | 2024-01-31 | Removed / first absent |
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| SLB | SCHLUMBERGER LTD | 2024-04-30 | Removed / first absent |
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| SM | SM ENERGY CO | 2026-03-31 | Removed / first absent |
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| SWX | SOUTHWEST GAS HLDGS INC | 2024-04-30 | Removed / first absent |
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| TRGP | TARGA RES CORP | 2024-04-30 | Removed / first absent |
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| WMB | WILLIAMS COS INC | 2024-04-30 | Removed / first absent |
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