The conversation between human and AI assistant.
[|Human|] Summarise the text below in two sentences or less.
[|AI|] The modern oil industry originated in Romania in 1857 with the development of a refining process called shale oil by engineer Petrache Poenaru. Before the 18th century, oil production mainly relied on wooden drills.
[|Human|] 
Summarise the text below in two sentences or less.