# Relationship history for MSHA mine 4604498

Current hierarchy: **Timothy  Lester → Richmond Works 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:** Terry L  Matney → No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sugar Run Coal Company Inc → No 1; 1975-07-01 to 1978-12-10; source msha-controller-operator-history
- **controller_controls_mine:** Raymond  Sturgeon → No 1; 1975-07-01 to 1978-12-10; source msha-controller-operator-history
- **controller_controls_operator:** Raymond  Sturgeon → Sugar Run Coal Company Inc; 1975-07-01 to 1978-12-10; source msha-controller-operator-history
- **operator_operates_mine:** Sugar Run Coal Company → No 1; 1978-12-11 to 1979-09-24; source msha-controller-operator-history
- **controller_controls_mine:** Ronnie  Lilly → No 1; 1978-12-11 to 1979-09-24; source msha-controller-operator-history
- **controller_controls_operator:** Ronnie  Lilly → Sugar Run Coal Company; 1978-12-11 to 1979-09-24; source msha-controller-operator-history
- **operator_operates_mine:** Center District Coal Company Inc → No 1; 1979-09-25 to 1981-10-11; source msha-controller-operator-history
- **controller_controls_mine:** Mc Kinney Charles W → No 1; 1979-09-25 to 1981-10-11; source msha-controller-operator-history
- **controller_controls_operator:** Mc Kinney Charles W → Center District Coal Company Inc; 1979-09-25 to 1981-10-11; source msha-controller-operator-history
- **operator_operates_mine:** Center District Coal Company Inc → No 1; 1981-10-12 to 1995-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Estes John P → No 1; 1981-10-12 to 1995-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Estes John P → Center District Coal Company Inc; 1981-10-12 to 1995-07-09; source msha-controller-operator-history
- **controller_controls_mine:** C Greg  Cline → No 1; 1993-08-02 to 1996-05-20; source msha-controller-operator-history
- **controller_controls_mine:** Steven Rocky  Justus → No 1; 1993-10-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard Wayne  Thomas → No 1; 1994-04-08 to 1995-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Calvin Coal Company Inc → No 1; 1995-07-10 to 1995-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Richard Wayne  Thomas → Calvin Coal Company Inc; 1995-07-10 to 1995-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Justin Energy Inc → No 1; 1995-12-01 to 1996-05-20; source msha-controller-operator-history
- **controller_controls_operator:** C Greg  Cline → Justin Energy Inc; 1995-12-01 to 1996-05-20; source msha-controller-operator-history
- **operator_operates_mine:** Day Mining Inc → No 1; 1996-05-21 to 1996-07-28; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Cline → No 1; 1996-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Cline → Day Mining Inc; 1996-05-21 to 1996-07-28; source msha-controller-operator-history
- **operator_operates_mine:** Jerusalem Coal Company Inc → No 1; 1996-07-29 to 1997-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Steven Rocky  Justus → Jerusalem Coal Company Inc; 1996-07-29 to 1997-12-31; source msha-controller-operator-history
- **controller_controls_mine:** K Dale  Tolliver et al → No 1; 1997-08-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Blue Falcon Mining Inc → No 1; 1998-01-01 to 1999-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Dennis G  Cook → No 1; 1998-01-01 to 1999-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Dennis G  Cook → Blue Falcon Mining Inc; 1998-01-01 to 1999-04-30; source msha-controller-operator-history
- **operator_operates_mine:** P I T A Mining Inc → No 1; 1999-05-01 to 2000-01-31; source msha-controller-operator-history
- **controller_controls_mine:** J Maurice  Des Rosier → No 1; 1999-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Maurice  Des Rosier → P I T A Mining Inc; 1999-05-01 to 2000-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Camp Creek Service Center Ltd → No 1; 2000-02-01 to 2000-08-31; source msha-controller-operator-history
- **controller_controls_operator:** K Dale  Tolliver et al → Camp Creek Service Center Ltd; 2000-02-01 to 2000-08-31; source msha-controller-operator-history
- **operator_operates_mine:** P M I Coal Company Inc → No 1; 2000-09-01 to 2000-12-20; source msha-controller-operator-history
- **controller_controls_operator:** Terry L  Matney → P M I Coal Company Inc; 2000-09-01 to 2000-12-20; source msha-controller-operator-history
- **operator_operates_mine:** Richmond Works Inc → No 1; 2000-12-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Timothy  Lester → No 1; 2000-12-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy  Lester → Richmond Works Inc; 2000-12-21 to current/open; source msha-controller-operator-history