# Relationship history for MSHA mine 1504639

Current hierarchy: **Monroe  Jones → J C & P Coal Corp → #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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Neds Fork Coal Company → #1; 1950-01-01 to 1972-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Neds Fork Coal Company → #1; 1950-01-01 to 1972-08-09; source msha-controller-operator-history
- **controller_controls_operator:** Neds Fork Coal Company → Neds Fork Coal Company; 1950-01-01 to 1972-05-18; source msha-controller-operator-history
- **operator_operates_mine:** J C & P Coal Corp → #1; 1972-05-19 to 1983-08-03; source msha-controller-operator-history
- **controller_controls_mine:** Monroe  Jones → #1; 1972-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Monroe  Jones → J C & P Coal Corp; 1972-05-19 to 1983-08-03; source msha-controller-operator-history
- **operator_operates_mine:** Champ Coal Company Inc → #1; 1983-08-04 to 1989-01-29; source msha-controller-operator-history
- **controller_controls_mine:** Jones Monroe Ii → #1; 1983-08-04 to 1989-01-29; source msha-controller-operator-history
- **controller_controls_operator:** Jones Monroe Ii → Champ Coal Company Inc; 1983-08-04 to 1989-01-29; source msha-controller-operator-history
- **operator_operates_mine:** Meka Energy Inc → #1; 1989-01-30 to 1991-11-19; source msha-controller-operator-history
- **controller_controls_mine:** Jones Tommy → #1; 1989-01-30 to 1991-12-22; source msha-controller-operator-history
- **controller_controls_operator:** Jones Tommy → Meka Energy Inc; 1989-01-30 to 1991-11-19; source msha-controller-operator-history
- **operator_operates_mine:** J C & P Coal Corp → #1; 1991-11-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Monroe  Jones → J C & P Coal Corp; 1991-11-20 to current/open; source msha-controller-operator-history