# Relationship history for MSHA mine 4404871

Current hierarchy: **Jim  Reed → Tacoma Mountain Mining Company → 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:** Barber Oil Corp → No 1; 1976-09-21 to 1981-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Paramont Mining Corp → No 1; 1977-09-01 to 1981-04-13; source msha-controller-operator-history
- **controller_controls_operator:** Barber Oil Corp → Paramont Mining Corp; 1977-09-01 to 1981-04-13; source msha-controller-operator-history
- **controller_controls_mine:** El Paso Energy Corp → No 1; 1979-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carl A  Hamilton et al → No 1; 1980-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** W R Grace Company et al → No 1; 1981-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paramont Coal Corp → No 1; 1981-04-14 to 1986-07-08; source msha-controller-operator-history
- **controller_controls_operator:** W R Grace Company et al → Paramont Coal Corp; 1981-04-14 to 1986-07-08; source msha-controller-operator-history
- **controller_controls_operator:** M A Hanna Company et al → Paramont Coal Corp; 1981-04-14 to 1986-07-08; source msha-controller-operator-history
- **controller_controls_mine:** Moore Vernoy → No 1; 1983-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pittston Company → No 1; 1986-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paramont Coal Corp → No 1; 1986-07-09 to 1987-02-15; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Paramont Coal Corp; 1986-07-09 to 1987-02-15; source msha-controller-operator-history
- **operator_operates_mine:** Minutemen Coal Company Inc → No 1; 1987-02-16 to 1991-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Carl A  Hamilton et al → Minutemen Coal Company Inc; 1987-02-16 to 1991-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Stephen D  Halsey et al → Minutemen Coal Company Inc; 1987-02-16 to 1991-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Bullion Hollow Enterprises Inc → No 1; 1991-02-01 to 1995-07-10; source msha-controller-operator-history
- **controller_controls_operator:** Moore Vernoy → Bullion Hollow Enterprises Inc; 1991-02-01 to 1995-07-10; source msha-controller-operator-history
- **operator_operates_mine:** Virginia Iron Coal & Coke Company → No 1; 1995-07-11 to 1995-08-28; source msha-controller-operator-history
- **controller_controls_operator:** El Paso Energy Corp → Virginia Iron Coal & Coke Company; 1995-07-11 to 1995-08-28; source msha-controller-operator-history
- **operator_operates_mine:** Tacoma Mountain Mining Company → No 1; 1995-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Reed → No 1; 1995-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Reed → Tacoma Mountain Mining Company; 1995-08-29 to current/open; source msha-controller-operator-history