# Relationship history for MSHA mine 4406959

Current hierarchy: **Pittston Company → Paramont Coal Corporation → Deep Mine #29**

- 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:** Pittston Company → Deep Mine #29; 1986-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paramont Coal Corp → Deep Mine #29; 1999-05-01 to 2001-07-16; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Paramont Coal Corp; 1999-05-01 to 2001-07-16; source msha-controller-operator-history
- **controller_controls_mine:** Rocky  Hill → Deep Mine #29; 2001-05-23 to 2010-01-19; source msha-controller-operator-history
- **operator_operates_mine:** Apple Jacks Coal Company Inc → Deep Mine #29; 2001-07-17 to 2002-03-12; source msha-controller-operator-history
- **controller_controls_operator:** Rocky  Hill → Apple Jacks Coal Company Inc; 2001-07-17 to 2002-03-12; source msha-controller-operator-history
- **operator_operates_mine:** Paramont Coal Corporation → Deep Mine #29; 2002-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Paramont Coal Corporation; 2002-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cecil  Nichols → Deep Mine #29; 2010-01-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cecil  Nichols → Apple Jacks Coal Company Inc; 2010-01-20 to 2002-03-12; source msha-controller-operator-history