{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Reading%20Anthracite%20Co%3B%20West%20Spring%20Slope%20Holdings%20LLC","controller":"Reading Anthracite Co; West Spring Slope Holdings LLC","_source":{"data_provider":"AI Analytics","brand_name":"MORVS","brand_url":"https://morvs.ai/","data_provider_url":"https://api.morvs.ai","license":"https://creativecommons.org/publicdomain/zero/1.0/","primary_source":"https://arlweb.msha.gov/OpenGovernmentData/OGIMSHA.asp","generated_at":"2026-10-05T05:05:47.826Z"},"count":1,"truncated":false,"mines":[{"mine_id":"3608489","mine_name":"West Spring Energy","coal_metal_ind":"C","mine_type":"Surface","mine_status":"Active","state":"PA","county_name":"Northumberland","controller_name":"Reading Anthracite Co; West Spring Slope Holdings LLC","operator_name":"West Spring Energy, LLC","num_employees":5,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/3608489"}]}