# Relationship history for MSHA mine 1511935

Current hierarchy: **Alliance Resource Partners LP → Webster County Coal, LLC → Smith 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:** Costain Group PLC → Smith Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Smith Jim R → Smith Mine; 1974-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jim Smith Contracting Company Inc → Smith Mine; 1979-06-01 to 1986-06-05; source msha-controller-operator-history
- **controller_controls_operator:** Smith Jim R → Jim Smith Contracting Company Inc; 1979-06-01 to 1986-06-05; source msha-controller-operator-history
- **controller_controls_mine:** Smith Jim R & Larry Finley → Smith Mine; 1986-06-01 to 1988-05-17; source msha-controller-operator-history
- **operator_operates_mine:** J Smith Coal Inc → Smith Mine; 1986-06-06 to 1988-05-17; source msha-controller-operator-history
- **controller_controls_operator:** Smith Jim R & Larry Finley → J Smith Coal Inc; 1986-06-06 to 1988-05-17; source msha-controller-operator-history
- **operator_operates_mine:** J Smith Coal Inc → Smith Mine; 1988-05-18 to 1989-08-18; source msha-controller-operator-history
- **controller_controls_mine:** Pyro Energy Corp → Smith Mine; 1988-05-18 to 1994-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Pyro Energy Corp → J Smith Coal Inc; 1988-05-18 to 1989-08-18; source msha-controller-operator-history
- **operator_operates_mine:** Costain Coal Inc → Smith Mine; 1989-08-19 to 1997-07-20; source msha-controller-operator-history
- **controller_controls_operator:** Costain Group PLC → Costain Coal Inc; 1989-08-19 to 1997-07-20; source msha-controller-operator-history
- **controller_controls_mine:** Alliance Resource Partners LP → Smith Mine; 1996-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Iracoal Incorporated → Smith Mine; 1997-01-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lodestar Energy, Inc. → Smith Mine; 1997-07-21 to 2004-04-05; source msha-controller-operator-history
- **controller_controls_operator:** Iracoal Incorporated → Lodestar Energy, Inc.; 1997-07-21 to 2004-04-05; source msha-controller-operator-history
- **controller_controls_mine:** Alliance Resource Partners LP → Smith Mine; 1998-01-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hopkins County Coal LLC → Smith Mine; 2004-04-06 to 2013-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Alliance Resource Partners LP → Hopkins County Coal LLC; 2004-04-06 to 2013-05-22; source msha-controller-operator-history
- **operator_operates_mine:** Webster County Coal, LLC → Smith Mine; 2013-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alliance Resource Partners LP → Webster County Coal, LLC; 2013-05-23 to current/open; source msha-controller-operator-history