# Relationship history for MSHA mine 1511162

Current hierarchy: **Great Hollow Holdings LLC → STAR RIDGE LAND, LLC  LLC → Plant No. 1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** United  Company → Plant No. 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Puma Coal Company Inc → Plant No. 1; 1978-04-01 to 1983-06-05; source msha-controller-operator-history
- **controller_controls_mine:** John H  Wilson → Plant No. 1; 1978-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John H  Wilson → Puma Coal Company Inc; 1978-04-01 to 1983-06-05; source msha-controller-operator-history
- **operator_operates_mine:** Pax Processing Company → Plant No. 1; 1983-06-06 to 1984-10-17; source msha-controller-operator-history
- **controller_controls_mine:** William J  Rowe → Plant No. 1; 1983-06-06 to 1984-10-17; source msha-controller-operator-history
- **controller_controls_operator:** William J  Rowe → Pax Processing Company; 1983-06-06 to 1984-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Plant No. 1; 1984-10-04 to 2011-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Ridgeway Coal Tipple Inc → Plant No. 1; 1984-10-18 to 1986-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Terry Charles  Marshall → Plant No. 1; 1984-10-18 to 1986-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Terry Charles  Marshall → Ridgeway Coal Tipple Inc; 1984-10-18 to 1986-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Wellmore Coal Corp → Plant No. 1; 1986-02-28 to 1992-05-10; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Wellmore Coal Corp; 1986-02-28 to 1992-05-10; source msha-controller-operator-history
- **operator_operates_mine:** Sidney Coal Company Inc → Plant No. 1; 1992-05-11 to 2013-01-22; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Sidney Coal Company Inc; 1992-05-11 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Plant No. 1; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Sidney Coal Company Inc; 2011-06-01 to 2013-01-22; source msha-controller-operator-history
- **operator_operates_mine:** High Ridge Mining, LLC → Plant No. 1; 2013-01-23 to 2023-02-21; source msha-controller-operator-history
- **controller_controls_mine:** Bill C  Smith → Plant No. 1; 2013-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bill C  Smith → High Ridge Mining, LLC; 2013-01-23 to 2023-02-21; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Plant No. 1; 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Sidney Coal Company Inc; 2016-07-26 to 2013-01-22; source msha-controller-operator-history
- **operator_operates_mine:** STAR RIDGE LAND, LLC  LLC → Plant No. 1; 2023-02-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Great Hollow Holdings LLC → Plant No. 1; 2023-02-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Great Hollow Holdings LLC → STAR RIDGE LAND, LLC  LLC; 2023-02-22 to current/open; source msha-controller-operator-history