# Relationship history for MSHA mine 3402087

Current hierarchy: **Aimee L  Boling; Daniel C  Boling → Diamond A Stone LLC → Diamond A Stone Mine #1**

- 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

- **operator_operates_mine:** DK Stone LLC → Diamond A Stone Mine #1; 2009-07-15 to 2014-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Daniel C  Boling  et al → Diamond A Stone Mine #1; 2009-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel C  Boling  et al → DK Stone LLC; 2009-07-15 to 2014-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Kimberly A  Boling  et al → DK Stone LLC; 2009-07-15 to 2014-07-22; source msha-controller-operator-history
- **operator_operates_mine:** B&B Stone LLC → Diamond A Stone Mine #1; 2014-07-23 to 2016-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Roy S  Butler et al → Diamond A Stone Mine #1; 2014-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roy S  Butler et al → B&B Stone LLC; 2014-07-23 to 2016-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Daniel C  Boling et al → B&B Stone LLC; 2014-07-23 to 2016-04-06; source msha-controller-operator-history
- **operator_operates_mine:** Diamond A Stone LLC → Diamond A Stone Mine #1; 2016-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Daniel C  Boling et al → Diamond A Stone Mine #1; 2016-04-07 to 2020-02-19; source msha-controller-operator-history
- **controller_controls_operator:** Daniel C  Boling et al → Diamond A Stone LLC; 2016-04-07 to 2020-02-19; source msha-controller-operator-history
- **controller_controls_operator:** Roy S  Butler et al → Diamond A Stone LLC; 2016-04-07 to 2020-02-19; source msha-controller-operator-history
- **controller_controls_mine:** Daniel C  Boling et al → Diamond A Stone Mine #1; 2020-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel C  Boling et al → Diamond A Stone LLC; 2020-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aimee L  Boling et al → Diamond A Stone LLC; 2020-02-20 to current/open; source msha-controller-operator-history