Principle owners of the mineral rights:

• Derbyshire workings:   
• W.E. Nightingale  1872-74
• Sir Harry Verney  1874- ??
• Duke of Devonshire
• ?Marquis of Hartington
• ?Fitzherbet of Tissington
• Nottinghamshire workings:  
• Duke of Portland 1894 -
• Countess of Carnarvon

Mineral owner’s interests:

• duration - term of years
• method of working
• support pillars
• boundaries
• barriers

 

• compensation mechanisms
• surface lowering
• drainage damage
• building damage

 

• surface rent
• shaftage rent
• tonnage rent
• transit rent