# Relationship history for MSHA mine 1516336

Current hierarchy: **Florida Progress Corporation → Kentucky May Coal Company Inc → Manatee 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Tackett Curtiss → Manatee Mine; 1974-09-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & N Coal Company → Manatee Mine; 1988-03-01 to 1990-05-07; source msha-controller-operator-history
- **controller_controls_operator:** Tackett Curtiss → C & N Coal Company; 1988-03-01 to 1990-05-07; source msha-controller-operator-history
- **controller_controls_mine:** France Kermit → Manatee Mine; 1988-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Hunt → Manatee Mine; 1988-11-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Adkins Donald → Manatee Mine; 1989-09-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Florida Progress Corporation → Manatee Mine; 1989-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Amanda & Kale Coal Company Inc → Manatee Mine; 1990-05-08 to 1991-02-13; source msha-controller-operator-history
- **controller_controls_operator:** Adkins Donald → Amanda & Kale Coal Company Inc; 1990-05-08 to 1991-02-13; source msha-controller-operator-history
- **operator_operates_mine:** Amba Energy → Manatee Mine; 1991-02-14 to 1993-03-16; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Hunt → Amba Energy; 1991-02-14 to 1993-03-16; source msha-controller-operator-history
- **operator_operates_mine:** Oakwood Mining Company → Manatee Mine; 1993-03-17 to 1993-12-28; source msha-controller-operator-history
- **controller_controls_operator:** France Kermit → Oakwood Mining Company; 1993-03-17 to 1993-12-28; source msha-controller-operator-history
- **operator_operates_mine:** Manatee Coal Corp → Manatee Mine; 1993-12-29 to 1994-05-23; source msha-controller-operator-history
- **controller_controls_mine:** Collie  Hall et al → Manatee Mine; 1993-12-29 to 1994-05-23; source msha-controller-operator-history
- **controller_controls_operator:** Collie  Hall et al → Manatee Coal Corp; 1993-12-29 to 1994-05-23; source msha-controller-operator-history
- **operator_operates_mine:** Kentucky May Coal Company Inc → Manatee Mine; 1994-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Florida Progress Corporation → Kentucky May Coal Company Inc; 1994-05-24 to current/open; source msha-controller-operator-history