# Relationship history for MSHA mine 1518687

Current hierarchy: **Douglas  Warriner → Double Branch Energy, LLC → No. 1 Surface 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:** Stanley R  Ditty → No. 1 Surface Mine; 2003-01-29 to 2007-07-19; source msha-controller-operator-history
- **operator_operates_mine:** Sequoia Energy LLC → No. 1 Surface Mine; 2003-11-17 to 2003-11-25; source msha-controller-operator-history
- **controller_controls_operator:** Stanley R  Ditty → Sequoia Energy LLC; 2003-11-17 to 2003-11-25; source msha-controller-operator-history
- **operator_operates_mine:** Liggett Mining LLC → No. 1 Surface Mine; 2003-11-26 to 2016-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Stanley R  Ditty → No. 1 Surface Mine; 2003-11-26 to 2007-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Stanley R  Ditty → Liggett Mining LLC; 2003-11-26 to 2007-07-19; source msha-controller-operator-history
- **controller_controls_mine:** James C  Justice II et al → No. 1 Surface Mine; 2007-07-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James C  Justice II et al → Sequoia Energy LLC; 2007-07-20 to 2003-11-25; source msha-controller-operator-history
- **controller_controls_operator:** James C  Justice II et al → Liggett Mining LLC; 2007-07-20 to 2016-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Douglas  Warriner → No. 1 Surface Mine; 2016-05-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Double Branch Energy, LLC → No. 1 Surface Mine; 2016-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas  Warriner → Double Branch Energy, LLC; 2016-07-23 to current/open; source msha-controller-operator-history