# Relationship history for MSHA mine 1516333

Current hierarchy: **James J  Kocian → Ikerd-Bandy Company Inc → Leslie Co #1 Strip**

- 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:** James J  Kocian et al → Leslie Co #1 Strip; 1985-02-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mel-Ash Coal Corp → Leslie Co #1 Strip; 1988-03-01 to 1989-10-10; source msha-controller-operator-history
- **controller_controls_mine:** Rookard Jack & Hobert C Hayes → Leslie Co #1 Strip; 1988-03-01 to 1989-10-10; source msha-controller-operator-history
- **controller_controls_operator:** Rookard Jack & Hobert C Hayes → Mel-Ash Coal Corp; 1988-03-01 to 1989-10-10; source msha-controller-operator-history
- **operator_operates_mine:** Leslie Energy Inc → Leslie Co #1 Strip; 1989-10-11 to 1990-01-18; source msha-controller-operator-history
- **controller_controls_mine:** Darrell  Davis → Leslie Co #1 Strip; 1989-10-11 to 1990-01-18; source msha-controller-operator-history
- **controller_controls_operator:** Darrell  Davis → Leslie Energy Inc; 1989-10-11 to 1990-01-18; source msha-controller-operator-history
- **operator_operates_mine:** Leslie Energy Inc → Leslie Co #1 Strip; 1990-01-19 to 1990-12-04; source msha-controller-operator-history
- **controller_controls_mine:** Jackson David → Leslie Co #1 Strip; 1990-01-19 to 1990-12-04; source msha-controller-operator-history
- **controller_controls_operator:** Jackson David → Leslie Energy Inc; 1990-01-19 to 1990-12-04; source msha-controller-operator-history
- **operator_operates_mine:** Ikerd-Bandy Company Inc → Leslie Co #1 Strip; 1990-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James J  Kocian et al → Ikerd-Bandy Company Inc; 1990-12-05 to current/open; source msha-controller-operator-history