{"data":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-13T11:19:05.459773+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"1800724","name":"Steyer"},"operator":{"type":"operator","id":"0149593","name":"Deer Haven Farms, LLC"},"controller":{"type":"controller","id":"0131501","name":"Richard  Marple; Regina  Marple"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12472","name":"Anker Group Inc"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"1990-07-17","validTo":"2005-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|C12472|1990-07-17|2005-05-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23768","name":"Anker West Virginia Mining Company Inc"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"1991-01-01","validTo":"1999-04-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|1991-01-01|1999-04-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12472","name":"Anker Group Inc"},"object":{"type":"operator","id":"P23768","name":"Anker West Virginia Mining Company Inc"},"validFrom":"1991-01-01","validTo":"1999-04-11","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|1991-01-01|C12472|1990-07-17|87018"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12472","name":"Anker Group Inc"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"1997-02-10","validTo":"2005-11-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|C12472|1997-02-10|2005-11-17"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24122","name":"Steyer Fuel Inc"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"1999-04-12","validTo":"2003-03-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P24122|1999-04-12|2003-03-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02874","name":"David M  Maynard"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"1999-04-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|C02874|1999-04-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02874","name":"David M  Maynard"},"object":{"type":"operator","id":"P24122","name":"Steyer Fuel Inc"},"validFrom":"1999-04-12","validTo":"2003-03-10","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P24122|1999-04-12|C02874|1999-04-12|61072"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23768","name":"Wolf Run Mining Company"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2003-03-11","validTo":"2012-02-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|2003-03-11|2012-02-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12472","name":"Anker Group Inc"},"object":{"type":"operator","id":"P23768","name":"Wolf Run Mining Company"},"validFrom":"2003-03-11","validTo":"2005-05-31","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|2003-03-11|C12472|1990-07-17|87019"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0045307","name":"International Coal Group Inc (ICG)"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2005-06-01","validTo":"2011-06-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|0045307|2005-06-01|2011-06-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0045307","name":"International Coal Group Inc (ICG)"},"object":{"type":"operator","id":"P23768","name":"Anker West Virginia Mining Company Inc"},"validFrom":"2005-06-01","validTo":"1999-04-11","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|1991-01-01|0045307|2005-06-01|5324"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0045307","name":"International Coal Group Inc (ICG)"},"object":{"type":"operator","id":"P23768","name":"Wolf Run Mining Company"},"validFrom":"2005-06-01","validTo":"2011-06-14","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|2003-03-11|0045307|2005-06-01|5325"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0045307","name":"International Coal Group Inc (ICG)"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2005-11-18","validTo":"2011-06-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|0045307|2005-11-18|2011-06-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2011-06-15","validTo":"2025-01-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|C15561|2011-06-15|2025-01-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"operator","id":"P23768","name":"Anker West Virginia Mining Company Inc"},"validFrom":"2011-06-15","validTo":"1999-04-11","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|1991-01-01|C15561|2011-06-15|96104"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"operator","id":"P23768","name":"Wolf Run Mining Company"},"validFrom":"2011-06-15","validTo":"2012-02-09","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|2003-03-11|C15561|2011-06-15|96105"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2011-06-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|C15561|2011-06-15|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23706","name":"Vindex Energy LLC"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2012-02-10","validTo":"2017-02-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23706|2012-02-10|2017-02-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0045307","name":"International Coal Group Inc (ICG)"},"object":{"type":"operator","id":"P23706","name":"Vindex Energy LLC"},"validFrom":"2012-02-10","validTo":"2011-06-14","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23706|2012-02-10|0045307|2005-11-18|5353"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12472","name":"Anker Group Inc"},"object":{"type":"operator","id":"P23706","name":"Vindex Energy LLC"},"validFrom":"2012-02-10","validTo":"2005-11-17","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23706|2012-02-10|C12472|1997-02-10|87045"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"operator","id":"P23706","name":"Vindex Energy LLC"},"validFrom":"2012-02-10","validTo":"2017-02-02","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23706|2012-02-10|C15561|2011-06-15|96173"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0149593","name":"Deer Haven Farms, LLC"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2017-02-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|0149593|2017-02-03|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0131501","name":"Regina  Marple et al"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2017-02-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|0131501|2017-02-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0131501","name":"Regina  Marple et al"},"object":{"type":"operator","id":"0149593","name":"Deer Haven Farms, LLC"},"validFrom":"2017-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|0149593|2017-02-03|0131501|2017-02-03|26386"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0131501","name":"Richard  Marple et al"},"object":{"type":"operator","id":"0149593","name":"Deer Haven Farms, LLC"},"validFrom":"2017-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|0149593|2017-02-03|0131501|2017-02-03|26387"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0189840","name":"Core Natural Resources Inc"},"object":{"type":"mine","id":"1800724","name":"Steyer"},"validFrom":"2025-01-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|0189840|2025-01-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0189840","name":"Core Natural Resources Inc"},"object":{"type":"operator","id":"P23768","name":"Anker West Virginia Mining Company Inc"},"validFrom":"2025-01-14","validTo":"1999-04-11","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|1991-01-01|0189840|2025-01-14|40435"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0189840","name":"Core Natural Resources Inc"},"object":{"type":"operator","id":"P23768","name":"Wolf Run Mining Company"},"validFrom":"2025-01-14","validTo":"2012-02-09","current":false,"derived":true,"evidenceMineId":"1800724","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800724|P23768|2003-03-11|0189840|2025-01-14|40436"}}],"coverage":{"historyRecords":14,"edgeCount":28,"intervalAnomalies":6,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1800724","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}