# Relationship history for MSHA mine 4608329

Current hierarchy: **Alpha Natural Resources Holdings, Inc → Peerless Eagle Coal Company → Mine 19**

- 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

- **controller_controls_mine:** Massey Energy Company → Mine 19; 1975-09-01 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Gary D  Spurlock → Mine 19; 1992-10-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peerless Eagle Coal Company → Mine 19; 1993-08-01 to 1994-04-18; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Peerless Eagle Coal Company; 1993-08-01 to 1994-04-18; source msha-controller-operator-history
- **operator_operates_mine:** R M I Contracting Corp → Mine 19; 1994-04-19 to 1994-10-14; source msha-controller-operator-history
- **controller_controls_mine:** Parsley Ronald Et Al → Mine 19; 1994-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Parsley Ronald Et Al → R M I Contracting Corp; 1994-04-19 to 1994-10-14; source msha-controller-operator-history
- **operator_operates_mine:** Copperas Coal Corp → Mine 19; 1994-10-15 to 1997-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Gary D  Spurlock → Copperas Coal Corp; 1994-10-15 to 1997-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Peerless Eagle Coal Company → Mine 19; 1997-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Peerless Eagle Coal Company; 1997-04-01 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Mine 19; 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 1994-04-18; 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 → Mine 19; 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 1994-04-18; 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