{"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":"4407162","name":"Big Creek Surface"},"operator":{"type":"operator","id":"0146035","name":"Ramaco Resources Land Holdings, LLC"},"controller":{"type":"controller","id":"0137341","name":"Ramaco Resources Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13340","name":"Kenneth L  Stacy"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2001-08-01","validTo":"2006-02-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|C13340|2001-08-01|2006-02-09"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2006-02-10","validTo":"2008-05-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|P24715|2006-02-10|2008-05-20"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2006-02-10","validTo":"2009-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|C00375|2006-02-10|2009-04-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2006-02-10","validTo":"2008-05-20","current":false,"derived":true,"evidenceMineId":"4407162","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|P24715|2006-02-10|C00375|2006-02-10|46777"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13340","name":"Kenneth L  Stacy"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2006-02-10","validTo":"2006-02-09","current":false,"derived":true,"evidenceMineId":"4407162","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|P24715|2006-02-10|C13340|2001-08-01|89339"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12075","name":"Terry T  McGaffee"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2008-02-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|C12075|2008-02-19|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0087344","name":"Mountain Excavating Company LLC"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2008-05-21","validTo":"2011-08-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0087344|2008-05-21|2011-08-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12075","name":"Terry T  McGaffee"},"object":{"type":"operator","id":"0087344","name":"Mountain Excavating Company LLC"},"validFrom":"2008-05-21","validTo":"2011-08-23","current":false,"derived":true,"evidenceMineId":"4407162","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0087344|2008-05-21|C12075|2008-02-19|86094"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2009-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0085453|2009-04-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2009-04-30","validTo":"2008-05-20","current":false,"derived":true,"evidenceMineId":"4407162","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|P24715|2006-02-10|0085453|2009-04-30|13575"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0119332","name":"Omega Surface Mining, LLC"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2011-08-24","validTo":"2020-08-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0119332|2011-08-24|2020-08-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0098593","name":"Omega Holdings LLC"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2011-08-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0098593|2011-08-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0098593","name":"Omega Holdings LLC"},"object":{"type":"operator","id":"0119332","name":"Omega Surface Mining, LLC"},"validFrom":"2011-08-24","validTo":"2020-08-05","current":false,"derived":true,"evidenceMineId":"4407162","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0119332|2011-08-24|0098593|2011-08-24|16243"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0104377","name":"Michael D Bauersachs"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2016-07-01","validTo":"2016-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0104377|2016-07-01|2016-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0137341","name":"Ramaco Resources Inc"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2017-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0137341|2017-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0146035","name":"Ramaco Resources Land Holdings, LLC"},"object":{"type":"mine","id":"4407162","name":"Big Creek Surface"},"validFrom":"2020-08-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0146035|2020-08-06|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0104377","name":"Michael D Bauersachs"},"object":{"type":"operator","id":"0146035","name":"Ramaco Resources Land Holdings, LLC"},"validFrom":"2020-08-06","validTo":"2016-12-31","current":false,"derived":true,"evidenceMineId":"4407162","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0146035|2020-08-06|0104377|2016-07-01|18211"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0137341","name":"Ramaco Resources Inc"},"object":{"type":"operator","id":"0146035","name":"Ramaco Resources Land Holdings, LLC"},"validFrom":"2020-08-06","validTo":null,"current":true,"derived":true,"evidenceMineId":"4407162","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407162|0146035|2020-08-06|0137341|2017-01-01|27738"}}],"coverage":{"historyRecords":7,"edgeCount":18,"intervalAnomalies":3,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4407162","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"}}