{"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":"4101126","name":"Big Oak Plant"},"operator":{"type":"operator","id":"0092166","name":"Iron Oak Big Oak LLC"},"controller":{"type":"controller","id":"0189021","name":"Iron Oak Energy Solutions LLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13656","name":"Osburn Materials Inc"},"object":{"type":"mine","id":"4101126","name":"Big Oak Plant"},"validFrom":"1950-01-01","validTo":"2017-04-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|L13656|1950-01-01|2017-04-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10408","name":"Clay M  Tooke"},"object":{"type":"mine","id":"4101126","name":"Big Oak Plant"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|M10408|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10408","name":"Clay M  Tooke"},"object":{"type":"operator","id":"L13656","name":"Osburn Materials Inc"},"validFrom":"1950-01-01","validTo":"2017-04-12","current":false,"derived":true,"evidenceMineId":"4101126","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|L13656|1950-01-01|M10408|1950-01-01|149189"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0077355","name":"Insight Equity et al"},"object":{"type":"mine","id":"4101126","name":"Big Oak Plant"},"validFrom":"2008-06-21","validTo":"2019-12-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0077355|2008-06-21|2019-12-09"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0092166","name":"Iron Oak Big Oak LLC"},"object":{"type":"mine","id":"4101126","name":"Big Oak Plant"},"validFrom":"2017-04-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0092166|2017-04-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0077355","name":"Insight Equity et al"},"object":{"type":"operator","id":"0092166","name":"Iron Oak Big Oak LLC"},"validFrom":"2017-04-13","validTo":"2019-12-09","current":false,"derived":true,"evidenceMineId":"4101126","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0092166|2017-04-13|0077355|2008-06-21|12132"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0153401","name":"Oak Hill Advisors et al"},"object":{"type":"mine","id":"4101126","name":"Big Oak Plant"},"validFrom":"2019-12-10","validTo":"2025-12-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0153401|2019-12-10|2025-12-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0153401","name":"Oak Hill Advisors et al"},"object":{"type":"operator","id":"0092166","name":"Iron Oak Big Oak LLC"},"validFrom":"2019-12-10","validTo":"2025-12-15","current":false,"derived":true,"evidenceMineId":"4101126","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0092166|2017-04-13|0153401|2019-12-10|31783"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0153401","name":"PIMCO et al"},"object":{"type":"operator","id":"0092166","name":"Iron Oak Big Oak LLC"},"validFrom":"2019-12-10","validTo":"2025-12-15","current":false,"derived":true,"evidenceMineId":"4101126","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0092166|2017-04-13|0153401|2019-12-10|31784"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0153401","name":"HPS Investment Partners et al"},"object":{"type":"operator","id":"0092166","name":"Iron Oak Big Oak LLC"},"validFrom":"2019-12-10","validTo":"2025-12-15","current":false,"derived":true,"evidenceMineId":"4101126","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0092166|2017-04-13|0153401|2019-12-10|31785"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0189021","name":"Iron Oak Energy Solutions LLC"},"object":{"type":"mine","id":"4101126","name":"Big Oak Plant"},"validFrom":"2025-12-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0189021|2025-12-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0189021","name":"Iron Oak Energy Solutions LLC"},"object":{"type":"operator","id":"0092166","name":"Iron Oak Big Oak LLC"},"validFrom":"2025-12-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"4101126","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4101126|0092166|2017-04-13|0189021|2025-12-16|40278"}}],"coverage":{"historyRecords":6,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4101126","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"}}