# Relationship history for MSHA mine 1511654

Current hierarchy: **Paul  Snyder → Matergy, Inc. → Bent Branch Plant**

- 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:** General Exploration Company → Bent Branch Plant; 1978-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gex Land Company → Bent Branch Plant; 1978-10-01 to 1988-08-23; source msha-controller-operator-history
- **controller_controls_operator:** General Exploration Company → Gex Land Company; 1978-10-01 to 1988-08-23; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Bent Branch Plant; 1984-10-04 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Shell Oil Company → Bent Branch Plant; 1987-07-10 to 1993-01-24; source msha-controller-operator-history
- **operator_operates_mine:** Utility Coals Company → Bent Branch Plant; 1988-08-24 to 1990-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Shell Oil Company → Utility Coals Company; 1988-08-24 to 1990-07-22; source msha-controller-operator-history
- **operator_operates_mine:** Holston Mining Inc → Bent Branch Plant; 1990-07-23 to 2002-07-21; source msha-controller-operator-history
- **controller_controls_mine:** Pittston Company → Bent Branch Plant; 1990-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Holston Mining Inc; 1990-07-23 to 2002-07-21; source msha-controller-operator-history
- **operator_operates_mine:** Sidney Coal Company, LLC → Bent Branch Plant; 2002-07-22 to 2018-02-15; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Sidney Coal Company, LLC; 2002-07-22 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Bent Branch Plant; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Sidney Coal Company, LLC; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Bent Branch Plant; 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Sidney Coal Company, LLC; 2016-07-26 to 2018-02-15; source msha-controller-operator-history
- **operator_operates_mine:** Matergy, Inc. → Bent Branch Plant; 2018-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Snyder → Bent Branch Plant; 2018-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Snyder → Matergy, Inc.; 2018-02-16 to current/open; source msha-controller-operator-history