# Relationship history for MSHA mine 1505375

Current hierarchy: **Lexington Coal Holdings, Inc → Lexington Coal Company, LLC → Long Fork**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Island Creek Coal Company → Long Fork; 1950-01-01 to 1992-03-25; source msha-controller-operator-history
- **controller_controls_mine:** Occidental Petroleum Corp → Long Fork; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Occidental Petroleum Corp → Island Creek Coal Company; 1950-01-01 to 1992-03-25; source msha-controller-operator-history
- **operator_operates_mine:** Long Fork Coal Company, LLC → Long Fork; 1992-03-26 to 2017-10-22; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Long Fork; 1992-03-26 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Long Fork Coal Company, LLC; 1992-03-26 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Long Fork; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Long Fork Coal Company, LLC; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Long Fork; 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Long Fork Coal Company, LLC; 2016-07-26 to 2017-10-22; source msha-controller-operator-history
- **operator_operates_mine:** Lexington Coal Company, LLC → Long Fork; 2017-10-23 to 2024-12-16; source msha-controller-operator-history
- **controller_controls_mine:** Lexington Coal Holdings, Inc → Long Fork; 2017-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lexington Coal Holdings, Inc → Lexington Coal Company, LLC; 2017-10-23 to 2024-12-16; source msha-controller-operator-history
- **operator_operates_mine:** Omega Land Restoration, Inc → Long Fork; 2024-12-17 to 2025-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Shawn  Dials → Long Fork; 2024-12-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shawn  Dials → Omega Land Restoration, Inc; 2024-12-17 to 2025-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Lexington Coal Company, LLC → Long Fork; 2025-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lexington Coal Holdings, Inc → Lexington Coal Company, LLC; 2025-10-01 to current/open; source msha-controller-operator-history