{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Mason%20Martin%20E","controller":"Mason Martin E","_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":"2026-09-30T06:49:13.736Z"},"count":8,"truncated":false,"mines":[{"mine_id":"4603331","mine_name":"No 1 Surface","coal_metal_ind":"C","mine_type":"Surface","mine_status":"Abandoned","state":"WV","county_name":"Logan","controller_name":"Mason Martin E","operator_name":"Briar Branch Mining Company Inc","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4603331"},{"mine_id":"4604160","mine_name":"Marilyn No 1","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"WV","county_name":"Logan","controller_name":"Mason Martin E","operator_name":"Oak Mining Company","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4604160"},{"mine_id":"4604628","mine_name":"Coal Fork #1 Mine","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"WV","county_name":"Kanawha","controller_name":"Mason Martin E","operator_name":"Blair Mining Company","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4604628"},{"mine_id":"4604733","mine_name":"Gut Fork Mine","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"WV","county_name":"Logan","controller_name":"Mason Martin E","operator_name":"Nephi Coal Properties Ltd","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4604733"},{"mine_id":"4604773","mine_name":"Robin No 2 Mine","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"WV","county_name":"Boone","controller_name":"Mason Martin E","operator_name":"Horizon Mining Company","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4604773"},{"mine_id":"4606077","mine_name":"No 1 Mine","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"WV","county_name":"Logan","controller_name":"Mason Martin E","operator_name":"Fir Mining Company","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4606077"},{"mine_id":"4606280","mine_name":"Coalburg #2","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"WV","county_name":"Logan","controller_name":"Mason Martin E","operator_name":"Clover Mining Company","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4606280"},{"mine_id":"4606303","mine_name":"No 1 Preparation Plant","coal_metal_ind":"C","mine_type":"Facility","mine_status":"Abandoned","state":"WV","county_name":"Boone","controller_name":"Mason Martin E","operator_name":"A & G Associates","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/4606303"}]}