{"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":"2026-10-17T05:35:58.500035+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":"1601032","name":"Lake Charles Grinding Plant"},"operator":{"type":"operator","id":"L16935","name":"Halliburton Energy Services, Inc."},"controller":{"type":"controller","id":"M00854","name":"Halliburton Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00251","name":"Nl Industries Inc"},"object":{"type":"mine","id":"1601032","name":"Lake Charles Grinding Plant"},"validFrom":"1950-01-01","validTo":"1996-03-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|M00251|1950-01-01|1996-03-04"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10764","name":"Baroid Drilling Fluids Inc"},"object":{"type":"mine","id":"1601032","name":"Lake Charles Grinding Plant"},"validFrom":"1983-03-01","validTo":"1994-03-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|L10764|1983-03-01|1994-03-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00251","name":"Nl Industries Inc"},"object":{"type":"operator","id":"L10764","name":"Baroid Drilling Fluids Inc"},"validFrom":"1983-03-01","validTo":"1994-03-23","current":false,"derived":true,"evidenceMineId":"1601032","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|L10764|1983-03-01|M00251|1950-01-01|108228"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15688","name":"Baroid-Division/Dresser Industries Inc"},"object":{"type":"mine","id":"1601032","name":"Lake Charles Grinding Plant"},"validFrom":"1994-03-24","validTo":"1998-02-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|L15688|1994-03-24|1998-02-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00003","name":"Dresser Industries Inc"},"object":{"type":"mine","id":"1601032","name":"Lake Charles Grinding Plant"},"validFrom":"1994-03-24","validTo":"1998-02-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|M00003|1994-03-24|1998-02-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00003","name":"Dresser Industries Inc"},"object":{"type":"operator","id":"L15688","name":"Baroid-Division/Dresser Industries Inc"},"validFrom":"1994-03-24","validTo":"1998-02-25","current":false,"derived":true,"evidenceMineId":"1601032","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|L15688|1994-03-24|M00003|1994-03-24|100519"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16935","name":"Halliburton Energy Services, Inc."},"object":{"type":"mine","id":"1601032","name":"Lake Charles Grinding Plant"},"validFrom":"1998-02-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|L16935|1998-02-26|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00854","name":"Halliburton Company"},"object":{"type":"mine","id":"1601032","name":"Lake Charles Grinding Plant"},"validFrom":"1998-02-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|M00854|1998-02-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00854","name":"Halliburton Company"},"object":{"type":"operator","id":"L16935","name":"Halliburton Energy Services, Inc."},"validFrom":"1998-02-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"1601032","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1601032|L16935|1998-02-26|M00854|1998-02-26|115435"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1601032","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}