Complex sentence: The Snibston Colliery Company opened Snibston No.3 Colliery about half a mile to the north of No.2 Colliery in 1850, and had a short life, closing in 1895.
Split into simpler sentences: The Snibston Colliery Company opened Snibston No.3 Colliery about half a mile to the north of No.2 Colliery in 1850. It had a short life, closing in 1895.