# Relationship history for MSHA mine 1516931

Current hierarchy: **Kenny  Fleming; Robert B  Hughes → Black Energy Coal Inc → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Biliter Marvin Jr → No 1; 1981-11-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kendrick Lawrence → No 1; 1988-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M & Mb Coal Company → No 1; 1990-08-01 to 1992-11-04; source msha-controller-operator-history
- **controller_controls_operator:** Biliter Marvin Jr → M & Mb Coal Company; 1990-08-01 to 1992-11-04; source msha-controller-operator-history
- **operator_operates_mine:** Nick'S Coal Company Inc → No 1; 1992-11-05 to 1996-10-08; source msha-controller-operator-history
- **controller_controls_operator:** Kendrick Lawrence → Nick'S Coal Company Inc; 1992-11-05 to 1996-10-08; source msha-controller-operator-history
- **operator_operates_mine:** Miracle Ridge Inc → No 1; 1996-10-09 to 1998-08-18; source msha-controller-operator-history
- **controller_controls_mine:** Clyde  Boyd → No 1; 1996-10-09 to 1998-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Clyde  Boyd → Miracle Ridge Inc; 1996-10-09 to 1998-08-18; source msha-controller-operator-history
- **controller_controls_mine:** Danny D Mead → No 1; 1998-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shiner Ridge Inc → No 1; 1998-08-19 to 2001-07-17; source msha-controller-operator-history
- **controller_controls_operator:** Danny D Mead → Shiner Ridge Inc; 1998-08-19 to 2001-07-17; source msha-controller-operator-history
- **operator_operates_mine:** Black Energy Coal Inc → No 1; 2001-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert B  Hughes et al → No 1; 2001-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert B  Hughes et al → Black Energy Coal Inc; 2001-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenny  Fleming  et al → Black Energy Coal Inc; 2001-07-18 to current/open; source msha-controller-operator-history