{"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":"4801012","name":"Stansbury Mine"},"operator":{"type":"operator","id":"0066643","name":"New Stansbury Coal Company LLC"},"controller":{"type":"controller","id":"0055909","name":"Steve  Robson; Randall D  Peterson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00012","name":"Ashland Inc et al"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"1950-01-01","validTo":"2006-04-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|C00012|1950-01-01|2006-04-04"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03759","name":"Winton Coal Company"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"1974-01-01","validTo":"1987-08-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P03759|1974-01-01|1987-08-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03097","name":"Ideal Basic Industries Inc & Union Pacific Corp"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"1974-01-01","validTo":"1987-08-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|C03097|1974-01-01|1987-08-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03097","name":"Ideal Basic Industries Inc & Union Pacific Corp"},"object":{"type":"operator","id":"P03759","name":"Winton Coal Company"},"validFrom":"1974-01-01","validTo":"1987-08-31","current":false,"derived":true,"evidenceMineId":"4801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P03759|1974-01-01|C03097|1974-01-01|61916"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19926","name":"Bitter Creek Resources Inc"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"1987-09-01","validTo":"1989-07-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P19926|1987-09-01|1989-07-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13619","name":"Nearburg Eugene E"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"1987-09-01","validTo":"1989-07-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|C13619|1987-09-01|1989-07-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13619","name":"Nearburg Eugene E"},"object":{"type":"operator","id":"P19926","name":"Bitter Creek Resources Inc"},"validFrom":"1987-09-01","validTo":"1989-07-13","current":false,"derived":true,"evidenceMineId":"4801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P19926|1987-09-01|C13619|1987-09-01|90641"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17880","name":"Arch Of Wyoming Llc"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"1989-07-14","validTo":"1996-04-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P17880|1989-07-14|1996-04-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00012","name":"Ashland Inc et al"},"object":{"type":"operator","id":"P17880","name":"Arch Of Wyoming Llc"},"validFrom":"1989-07-14","validTo":"1996-04-11","current":false,"derived":true,"evidenceMineId":"4801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P17880|1989-07-14|C00012|1950-01-01|43190"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23513","name":"Rock Springs Royalty Company"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"1996-04-12","validTo":"2005-08-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P23513|1996-04-12|2005-08-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15453","name":"Union Pacific Corp Et Al"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"1996-04-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|C15453|1996-04-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15453","name":"Union Pacific Corp Et Al"},"object":{"type":"operator","id":"P23513","name":"Rock Springs Royalty Company"},"validFrom":"1996-04-12","validTo":"2005-08-31","current":false,"derived":true,"evidenceMineId":"4801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P23513|1996-04-12|C15453|1996-04-12|95619"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0066643","name":"New Stansbury Coal Company LLC"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"2005-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|0066643|2005-09-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0055909","name":"Randall D  Peterson et al"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"2005-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|0055909|2005-09-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0055909","name":"Randall D  Peterson et al"},"object":{"type":"operator","id":"0066643","name":"New Stansbury Coal Company LLC"},"validFrom":"2005-09-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|0066643|2005-09-01|0055909|2005-09-01|7255"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0055909","name":"Steve  Robson et al"},"object":{"type":"operator","id":"0066643","name":"New Stansbury Coal Company LLC"},"validFrom":"2005-09-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|0066643|2005-09-01|0055909|2005-09-01|7256"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"mine","id":"4801012","name":"Stansbury Mine"},"validFrom":"2006-04-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|C15561|2006-04-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"operator","id":"P17880","name":"Arch Of Wyoming Llc"},"validFrom":"2006-04-05","validTo":"1996-04-11","current":false,"derived":true,"evidenceMineId":"4801012","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801012|P17880|1989-07-14|C15561|2006-04-05|96065"}}],"coverage":{"historyRecords":7,"edgeCount":18,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4801012","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"}}