{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Roberts%20Derrick","controller":"Roberts Derrick","_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":"2026-10-31T07:39:48.761Z"},"count":2,"truncated":false,"mines":[{"mine_id":"4607681","mine_name":"Portal B","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"WV","county_name":"Mcdowell","controller_name":"Roberts Derrick","operator_name":"D V R Mining Inc","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4607681"},{"mine_id":"4608053","mine_name":"#1","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"WV","county_name":"Mcdowell","controller_name":"Roberts Derrick","operator_name":"D V R Mining Inc","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4608053"}]}