# Relationship history for MSHA mine 4601616

Current hierarchy: **Alpha Natural Resources Holdings, Inc → Peerless Eagle Coal Company → Liberty**

- 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:** Peerless Eagle Coal Company → Liberty; 1950-01-01 to 1975-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Terry  Seelinger et al → Liberty; 1950-01-01 to 1975-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Seelinger et al → Peerless Eagle Coal Company; 1950-01-01 to 1975-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Sears Casey & Emery Smallman → Liberty; 1973-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peerless Eagle Coal Company → Liberty; 1975-09-01 to 1989-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Liberty; 1975-09-01 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Peerless Eagle Coal Company; 1975-09-01 to 1989-04-09; source msha-controller-operator-history
- **operator_operates_mine:** L & M Machinery Inc → Liberty; 1989-04-10 to 1991-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Mc Court Loye → Liberty; 1989-04-10 to 1991-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Mc Court Loye → L & M Machinery Inc; 1989-04-10 to 1991-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Taner Coal Company Inc → Liberty; 1991-02-01 to 2000-06-22; source msha-controller-operator-history
- **controller_controls_operator:** Sears Casey & Emery Smallman → Taner Coal Company Inc; 1991-02-01 to 2000-06-22; source msha-controller-operator-history
- **operator_operates_mine:** Peerless Eagle Coal Company → Liberty; 2000-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Peerless Eagle Coal Company; 2000-06-23 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Liberty; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Peerless Eagle Coal Company; 2011-06-01 to 1989-04-09; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Peerless Eagle Coal Company; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Liberty; 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Peerless Eagle Coal Company; 2016-07-26 to 1989-04-09; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Peerless Eagle Coal Company; 2016-07-26 to current/open; source msha-controller-operator-history