# Relationship history for MSHA mine 0102270

Current hierarchy: **Timothy L  McCoy → Alabama Land & Mineral Corp → Marion South Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** American Resource Development Company Inc → Marion South Mine; 1980-12-01 to 1981-11-19; source msha-controller-operator-history
- **controller_controls_mine:** Maturo John A Jr → Marion South Mine; 1980-12-01 to 1981-11-19; source msha-controller-operator-history
- **controller_controls_operator:** Maturo John A Jr → American Resource Development Company Inc; 1980-12-01 to 1981-11-19; source msha-controller-operator-history
- **operator_operates_mine:** American Resource Development Company Inc → Marion South Mine; 1981-11-20 to 1986-10-26; source msha-controller-operator-history
- **controller_controls_mine:** Mc Millan Robert K Et Al → Marion South Mine; 1981-11-20 to 1986-10-26; source msha-controller-operator-history
- **controller_controls_operator:** Mc Millan Robert K Et Al → American Resource Development Company Inc; 1981-11-20 to 1986-10-26; source msha-controller-operator-history
- **controller_controls_mine:** West David W → Marion South Mine; 1985-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** St Vernon Inc → Marion South Mine; 1986-10-27 to 1987-09-23; source msha-controller-operator-history
- **controller_controls_operator:** West David W → St Vernon Inc; 1986-10-27 to 1987-09-23; source msha-controller-operator-history
- **operator_operates_mine:** Ncb Joint Venture → Marion South Mine; 1987-09-24 to 1988-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Compton Ken-Derrell Chamblee Et Al → Marion South Mine; 1987-09-24 to 1988-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Compton Ken-Derrell Chamblee Et Al → Ncb Joint Venture; 1987-09-24 to 1988-10-17; source msha-controller-operator-history
- **operator_operates_mine:** Ncb Joint Venture → Marion South Mine; 1988-10-18 to 1991-02-11; source msha-controller-operator-history
- **controller_controls_mine:** Chamblee Derrell Et Al → Marion South Mine; 1988-10-18 to 1991-02-11; source msha-controller-operator-history
- **controller_controls_operator:** Chamblee Derrell Et Al → Ncb Joint Venture; 1988-10-18 to 1991-02-11; source msha-controller-operator-history
- **operator_operates_mine:** Marion County Venture → Marion South Mine; 1991-02-12 to 1991-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Viking Energy Group Inc-Jef & Company Inc Et Al → Marion South Mine; 1991-02-12 to 1991-04-28; source msha-controller-operator-history
- **controller_controls_operator:** Viking Energy Group Inc-Jef & Company Inc Et Al → Marion County Venture; 1991-02-12 to 1991-04-28; source msha-controller-operator-history
- **operator_operates_mine:** Triton Coal Company Inc → Marion South Mine; 1991-04-29 to 1997-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Young James E → Marion South Mine; 1991-04-29 to 1997-05-18; source msha-controller-operator-history
- **controller_controls_operator:** Young James E → Triton Coal Company Inc; 1991-04-29 to 1997-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Timothy L  McCoy → Marion South Mine; 1996-01-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Alabama Land & Mineral Corp → Marion South Mine; 1997-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy L  McCoy → Alabama Land & Mineral Corp; 1997-05-19 to current/open; source msha-controller-operator-history