# Relationship history for MSHA mine 4404970

Current hierarchy: **Hank K  Matney; Fred D  Matney; Rick A  Matney → Nufac Mining Inc → No 7**

- 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:** Bounty Mining Corp → No 7; 1978-02-01 to 1980-11-11; source msha-controller-operator-history
- **controller_controls_mine:** Farmer Charles T → No 7; 1978-02-01 to 1981-02-19; source msha-controller-operator-history
- **controller_controls_operator:** Farmer Charles T → Bounty Mining Corp; 1978-02-01 to 1980-11-11; source msha-controller-operator-history
- **operator_operates_mine:** Bounty Mining Corp → No 7; 1980-11-12 to 1988-11-20; source msha-controller-operator-history
- **controller_controls_mine:** Ramey C A → No 7; 1980-11-12 to 1988-11-20; source msha-controller-operator-history
- **controller_controls_operator:** Ramey C A → Bounty Mining Corp; 1980-11-12 to 1988-11-20; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth L  Stacy → No 7; 1988-06-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Reco Mining Inc → No 7; 1988-11-21 to 1989-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Stacy → Reco Mining Inc; 1988-11-21 to 1989-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Hollow Point Mining Inc → No 7; 1989-05-05 to 2000-11-13; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Stacy → No 7; 1989-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Stacy → Hollow Point Mining Inc; 1989-05-05 to 2000-11-13; source msha-controller-operator-history
- **controller_controls_mine:** Rick A  Matney  et al → No 7; 1991-08-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Nufac Mining Inc → No 7; 2000-11-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rick A  Matney  et al → Nufac Mining Inc; 2000-11-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hank K  Matney  et al → Nufac Mining Inc; 2000-11-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fred D  Matney  et al → Nufac Mining Inc; 2000-11-14 to current/open; source msha-controller-operator-history